CN115278454A - Intelligent power adjusting method and device for audio amplifier - Google Patents
Intelligent power adjusting method and device for audio amplifier Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
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- H04R2430/01—Aspects of volume control, not necessarily automatic, in sound systems
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Abstract
The invention provides a power intelligent adjusting method and device for an audio amplifier. Adjusting the electric signal in the process of carrying out analog-to-digital conversion on the acquired first audio data through the playing volume value obtained based on the environmental sound data; the second signal processing unit processes the first digital signal to obtain a second digital signal, and the second digital signal is subjected to digital-to-analog conversion to restore a second sound signal for output, so that the purpose of adjusting the volume can be achieved through intelligently adjusting the power.
Description
Technical Field
The invention relates to the technical field of audio, in particular to an intelligent power adjusting method and device for an audio amplifier.
Background
Various electronic devices have a circuit audio amplifier for driving an audio signal to an audio load, and output the audio signal to a playback device through a connector in the form of, for example, a plug and a socket. The playing device may be a headset with a speaker, a sound box, a PAD, a television, a set-top box, a computer, or other electronic devices with a speaker, and the volume of the speaker is generally controlled by a user's manual remote controller or buttons or virtual icons according to the user's needs. When a user needs to adjust the output volume of the speaker according to the user's own needs or the change of environmental noise, the user can only adjust the volume by operating a matched remote controller or a volume adjustment button or a virtual icon of the electronic device, which causes inconvenience for the user.
Disclosure of Invention
The invention is based on the problems and provides an intelligent power adjusting method and device for an audio amplifier, wherein an electric signal is adjusted in the process of carrying out analog-to-digital conversion on collected first audio data through a play volume value obtained based on environmental sound data; the second signal processing unit processes the first digital signal to obtain a second digital signal, and the second digital signal is subjected to digital-to-analog conversion to restore a second sound signal for output, so that the purpose of adjusting the volume can be achieved by intelligently adjusting the power.
In view of the above, an aspect of the present invention provides a power intelligent adjusting apparatus for an audio amplifier, including: the system comprises a communication unit for receiving and sending data, an audio acquisition unit for acquiring environmental sound data and first audio data, a first power adjustment unit, a first signal processing unit, a second signal processing unit and a central processing unit;
the audio acquisition unit is used for transmitting the environmental sound data to the central processing unit;
the central processing unit is used for calculating a playing volume value according to the environmental sound data;
the first signal processing unit is used for converting the first audio data from a first acoustic signal into a first electric signal;
the central processing unit is further used for determining a first adjusting coefficient for amplifying/reducing the first electric signal according to the playing volume value;
the first power regulating unit is used for amplifying/reducing the first electric signal into a second electric signal according to the first regulating coefficient;
the first signal processing unit is further configured to convert the second electrical signal into a first digital signal;
the second signal processing unit is configured to:
distributing the first digital signal to different signal processing channels for processing;
merging the first digital signals processed by different signal processing channels, dividing the first digital signals into first high-frequency data and first low-frequency data, and then respectively processing the first high-frequency data and the first low-frequency data;
merging the processed first high-frequency data and the processed first low-frequency data to obtain a second digital signal;
converting the second digital signal to a third electrical signal;
and restoring the third electric signal into a second sound signal and outputting the second sound signal.
Optionally, the audio acquisition unit is further configured to acquire a volume test data set through the communication unit;
the central processing unit is used for selecting first volume test data from the volume test data set according to a preset rule;
the second signal processing unit is configured to convert the first volume test data into a fourth electrical signal, restore the fourth electrical signal into a second acoustic signal, and output the second acoustic signal;
and the central processing unit is used for determining reference volume data according to the feedback information of the user to the output second sound signal.
Optionally, a second power adjusting unit is further included;
and the second power adjusting unit is used for adjusting the third electric signal by adjusting the power according to the relation among the reference volume data, the volume and the current value.
Optionally, a vibration monitoring unit is further included;
the vibration monitoring unit is used for acquiring first vibration data and/or second vibration data generated when the first power regulating unit and/or the second power regulating unit work;
the central processing unit is also used for determining first noise data and/or second noise data according to the first vibration data and/or the second vibration data;
acquiring an incidence relation model between the noise and the vibration and power of the power adjusting unit;
and driving the first power regulating unit and/or the second power regulating unit to work according to the incidence relation model and the first noise data and/or the second noise data.
Optionally, the central processing unit is further configured to analyze the first audio data, group the first audio data according to sound sources, and assign a group identifier to each group;
the first signal processing unit is configured to convert the first audio data from a first acoustic signal to a first electrical signal, specifically:
converting the grouped first audio data from a first acoustic signal into a first electrical signal in units of groups;
the second signal processing unit is configured to distribute the first digital signal to different signal processing channels for processing, specifically:
and distributing the first digital signal to different signal processing channels for processing according to the corresponding relation between the preset group identification and the signal processing channels.
Another aspect of the present invention provides a power intelligent regulation method for an audio amplifier, the power intelligent regulation apparatus including a communication unit for receiving and transmitting data, an audio acquisition unit for acquiring ambient sound data and first audio data, a first power regulation unit, a first signal processing unit, a second signal processing unit, and a central processing unit, the power intelligent regulation method comprising:
calculating a playing volume value according to the environmental sound data;
converting the first audio data from a first acoustic signal to a first electrical signal;
determining a first adjustment coefficient for amplifying/reducing the first electric signal according to the playing volume value;
amplifying/reducing the first electrical signal by the first adjustment factor to form a second electrical signal;
converting the second electrical signal into a first digital signal;
distributing the first digital signal to different signal processing channels for processing;
merging the first digital signals processed by different signal processing channels, dividing the first digital signals into first high-frequency data and first low-frequency data, and processing the first high-frequency data and the first low-frequency data respectively;
merging the processed first high-frequency data and the processed first low-frequency data to obtain a second digital signal;
converting the second digital signal to a third electrical signal;
and restoring the third electric signal into a second sound signal and outputting the second sound signal.
Optionally, the method further comprises:
acquiring a volume test data set through the communication unit;
selecting first volume test data from the volume test data set according to a preset rule;
converting the first volume test data into a fourth electric signal, and outputting the fourth electric signal after restoring the fourth electric signal into a second sound signal;
and determining reference volume data according to the feedback information of the user to the output second sound signal.
Optionally, the power smart regulation apparatus further includes a second power regulation unit, and the power smart regulation method further includes:
and adjusting the third electric signal by adjusting the power according to the relation among the reference volume data, the volume and the current value.
Optionally, the method further comprises: acquiring first vibration data and/or second vibration data generated when the first power regulating unit and/or the second power regulating unit work;
determining first noise data and/or second noise data according to the first vibration data and/or the second vibration data;
acquiring an incidence relation model between the noise and the vibration and power of the power adjusting unit;
and driving the first power regulating unit and/or the second power regulating unit to work according to the incidence relation model and the first noise data and/or the second noise data.
Optionally, after the step of acquiring the first audio data, the method further includes: analyzing the first audio data, grouping the first audio data according to sound sources, and allocating a group identifier to each group;
the step of converting the first audio data from a first acoustic signal to a first electrical signal comprises: converting the grouped first audio data from a first acoustic signal into a first electrical signal in units of groups;
the step of distributing the first digital signal to different signal processing channels for processing includes: and distributing the first digital signal to different signal processing channels for processing according to the corresponding relation between the preset group identification and the signal processing channels.
By adopting the technical scheme of the invention, the intelligent power adjusting device is provided with a communication unit for receiving and sending data, an audio acquisition unit for acquiring environmental sound data and first audio data, a first power adjusting unit, a first signal processing unit, a second signal processing unit and a central processing unit. Adjusting the electric signal in the process of carrying out analog-digital conversion on the acquired first audio data through a playing volume value obtained based on the environmental sound data; the second signal processing unit processes the first digital signal to obtain a second digital signal, and the second digital signal is subjected to digital-to-analog conversion to restore a second sound signal for output, so that the purpose of adjusting the volume can be achieved through intelligently adjusting the power.
Drawings
Fig. 1 is a schematic block diagram of a power intelligent regulation apparatus for an audio amplifier according to an embodiment of the present invention;
fig. 2 is a flowchart of a power intelligent adjustment method for an audio amplifier according to another embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
The terms "first," "second," and the like in the description and claims of the present application and in the foregoing drawings are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
An intelligent power adjustment method and apparatus for an audio amplifier according to some embodiments of the present invention are described below with reference to fig. 1 to 2.
As shown in fig. 1, an embodiment of the present invention provides a power intelligent adjusting apparatus for an audio amplifier, including: the system comprises a communication unit for receiving and transmitting data, an audio acquisition unit for acquiring environmental sound data and first audio data, a first power regulation unit, a first signal processing unit, a second signal processing unit and a central processing unit;
the audio acquisition unit is used for transmitting the environmental sound data to the central processing unit;
the central processing unit is used for calculating a playing volume value according to the environmental sound data;
the first signal processing unit is used for converting the first audio data from a first acoustic signal into a first electric signal;
the central processing unit is further used for determining a first adjusting coefficient for amplifying/reducing the first electric signal according to the playing volume value;
the first power regulating unit is used for amplifying/reducing the first electric signal into a second electric signal according to the first regulating coefficient;
the first signal processing unit is further configured to convert the second electrical signal into a first digital signal;
the second signal processing unit is configured to:
distributing the first digital signal to different signal processing channels for processing;
merging the first digital signals processed by different signal processing channels, dividing the first digital signals into first high-frequency data and first low-frequency data, and processing the first high-frequency data and the first low-frequency data respectively;
merging the processed first high-frequency data and the processed first low-frequency data to obtain a second digital signal;
converting the second digital signal to a third electrical signal;
and restoring the third electric signal into a second sound signal and outputting the second sound signal.
In the embodiment of the present invention, the audio collecting unit may be a microphone, and may collect sound; or other units connected to the communication unit, which can acquire audio data through the communication unit. The communication unit may be a wireless communication unit or a wired communication unit.
The central processing unit calculates a playing volume value according to the environmental sound data, and determines a first adjusting coefficient for amplifying/reducing the first electric signal according to the playing volume value, so that a power value required by the first power adjusting unit for adjusting the first electric signal can be further obtained.
The first signal processing unit may convert the first audio data received by the audio acquisition unit from the first acoustic signal into a first electrical signal in the form of an analog signal, and may further convert the second electrical signal processed by the first power adjustment unit into a first digital signal.
The first power adjusting unit may be configured to adjust power of the input audio signal, for example, amplify the power of the input audio signal, and adjust a gain of the audio amplifier to adjust an amplification factor of the power of the audio signal, so as to adjust a volume of the audio signal accordingly. If the electronic device is a television, the volume of the sound output by the television can be adjusted by controlling the gain of the audio amplifier.
The second signal unit has different signal processing channels, and can distribute the first digital signal to different signal processing channels for processing according to a preset distribution rule after the first digital signal is analyzed.
By adopting the technical scheme of the embodiment, the intelligent power adjusting device is provided with a communication unit for receiving and sending data, an audio acquisition unit for acquiring environmental sound data and first audio data, a first power adjusting unit, a first signal processing unit, a second signal processing unit and a central processing unit. Calculating to obtain a playing volume value according to the collected environmental sound data, determining an adjusting coefficient for amplifying/reducing the electric signal according to the playing volume value, and adjusting the electric signal in the process of carrying out analog-to-digital conversion on the collected first audio data through the playing volume value obtained based on the environmental sound data; the second signal processing unit processes the first digital signal to obtain a second digital signal, and the second digital signal is subjected to digital-to-analog conversion to restore a second sound signal for output, so that the purpose of adjusting the volume can be achieved by intelligently adjusting the power.
It should be understood that the block diagram of the power intelligent adjusting device for an audio amplifier shown in fig. 1 is only schematic, and the number of the modules shown is not intended to limit the scope of the present invention.
In some possible embodiments of the present invention, the audio acquisition unit is further configured to acquire a volume test data set through the communication unit;
the central processing unit is used for selecting first volume test data from the volume test data set according to a preset rule;
the second signal processing unit is configured to convert the first volume test data into a fourth electrical signal, restore the fourth electrical signal into a second acoustic signal, and output the second acoustic signal;
and the central processing unit is used for determining reference volume data according to the feedback information of the user to the output second sound signal.
It will be appreciated that in order to improve the accuracy of the power adjustment, it is necessary to determine a reference criterion, and in embodiments of the invention, the amount of power to be used is determined by determining reference volume data that matches the user. Firstly, the communication unit is connected with other intelligent terminals or servers to obtain a volume test data set. The volume test data set is classified according to different standards, for example, the volume test data set may be classified according to the type of the sound output device (e.g., earphone, sound box, television, etc.), the sound effect attribute of the sound output device (e.g., high frequency, low frequency, amplitude, etc.), the environment in which the sound output device is located (e.g., living room, square, conference room, etc.), the user attribute of the sound output device (e.g., elderly, children, hearing-impaired person, etc.), and the like. The central processing unit is configured to select, according to a preset rule (for example, a correspondence between a type of the sound output device and the test data, or a correspondence between an environment in which the sound output device is located and the test data), first volume test data that matches a current usage scenario from the volume test data set. Converting the first volume test data into a fourth electric signal through the second signal processing unit, and outputting the fourth electric signal after restoring the fourth electric signal into a second sound signal; after hearing the second output sound signal, the user may give feedback to the user, such as by feeding back information through a graphical user interface or by replying with voice feedback information, where the feedback information may be "audible", "not audible", etc., or may be a selection submitted for a given option, or may be a reply to a particular question (e.g., what is your name; but also information reflected by the brain wave signals. And the central processing unit determines reference volume data according to the feedback information of the user to the output second sound signal.
It should be noted that in other embodiments of the present invention, in order to adjust the power more intelligently to achieve efficient management of the volume, the first neural network may also be trained to form a reference volume model based on historical volume data, scene data, user data, etc.
In some possible embodiments of the present invention, the power supply further comprises a second power adjusting unit;
and the second power adjusting unit is used for adjusting the third electric signal by adjusting the power according to the relation among the reference volume data, the volume and the current value.
It can be understood that, in order to make power regulation efficient and accurate and avoid the adverse effect on elements caused by the excessive workload of the first power regulation unit, in the embodiment of the present invention, the second power regulation unit is added. And the second power adjusting unit adjusts the third electric signal by changing the magnitude of the current value by adjusting the power according to the relation among the reference volume data, the volume and the current value so as to achieve the purpose of adjusting the volume to the optimal state.
In some possible embodiments of the present invention, the present invention further comprises a vibration monitoring unit;
the vibration monitoring unit is used for acquiring first vibration data and/or second vibration data generated when the first power regulating unit and/or the second power regulating unit work;
the central processing unit is also used for determining first noise data and/or second noise data according to the first vibration data and/or the second vibration data;
the central processing unit is also used for acquiring an incidence relation model between the noise and the vibration size and the power size of the power adjusting unit;
the central processing unit is further used for driving the first power adjusting unit and/or the second power adjusting unit to work according to the incidence relation model and the first noise data and/or the second noise data.
It can be understood that the device itself will generate vibration during the operation and under the influence of other terminals, and the vibration will affect the final output volume and sound effect, thereby bringing bad user experience. In order to solve the foregoing problems, in the embodiments of the present invention, a vibration monitoring unit is additionally provided, which may be, but not limited to, monitor the operating states of the first power regulating unit and/or the second power regulating unit, and collect first vibration data and/or second vibration data generated when the first power regulating unit and/or the second power regulating unit operate.
And the central processing unit determines first noise data generated when the first power regulating unit works and/or second noise data generated when the second power regulating unit works according to the first vibration data and/or the second vibration data.
It should be noted that, in the embodiment of the present invention, an association relationship model may be formed in advance by acquiring historical data (including noise magnitude data, vibration magnitude data of the power regulation unit, power magnitude data, and the like) during the operation of the first power regulation unit and/or the second power regulation unit, and by training the second neural network, determining an association relationship between noise generated during the operation of the first power regulation unit and/or the second power regulation unit and its own vibration magnitude and power magnitude.
And finally, driving the first power adjusting unit and/or the second power adjusting unit to work by the central processing unit according to the incidence relation model and the first noise data and/or the second noise data so as to use the most matched power to reach the optimal volume under the condition of meeting the hearing requirement.
In some possible embodiments of the present invention, the central processing unit is further configured to analyze the first audio data, group the first audio data by sound source, and assign a group identifier to each group;
the first signal processing unit is configured to convert the first audio data from a first acoustic signal to a first electrical signal, specifically:
converting the grouped first audio data from a first acoustic signal to a first electrical signal in units of groups;
the second signal processing unit is configured to distribute the first digital signal to different signal processing channels for processing, specifically:
and distributing the first digital signal to different signal processing channels for processing according to the corresponding relation between the preset group identification and the signal processing channels.
It can be understood that, in order to ensure the optimal processing effect and no data loss when processing the audio data, in the embodiment of the present invention, the central processing unit analyzes the first audio data, groups the first audio data according to the sound source, and assigns a group identifier to each group; converting the grouped first audio data from a first acoustic signal into a first electric signal in units of groups.
The process of distributing the first digital signal to different signal processing channels for processing in the second signal processing unit specifically includes:
and distributing the first digital signal to different signal processing channels for processing according to the corresponding relation between the preset group identification and the signal processing channels.
It should be noted that the processing flow and processing method of the signals by different signal processing channels may be different, and by this processing method, the excessive processing of the important signals may be avoided, and the unimportant signals may be attenuated or eliminated to avoid the interference.
As shown in fig. 2, another embodiment of the present invention provides a power intelligent adjustment method for an audio amplifier, where the power intelligent adjustment apparatus includes a communication unit for receiving and transmitting data, an audio acquisition unit for acquiring ambient sound data and first audio data, a first power adjustment unit, a first signal processing unit, a second signal processing unit, and a central processing unit, and the power intelligent adjustment method includes:
calculating a playing volume value according to the environmental sound data;
converting the first audio data from a first acoustic signal to a first electrical signal;
determining a first adjustment coefficient for amplifying/reducing the first electric signal according to the playing volume value;
amplifying/reducing the first electrical signal by the first adjustment factor to form a second electrical signal;
converting the second electrical signal into a first digital signal;
distributing the first digital signal to different signal processing channels for processing;
merging the first digital signals processed by different signal processing channels, dividing the first digital signals into first high-frequency data and first low-frequency data, and processing the first high-frequency data and the first low-frequency data respectively;
merging the processed first high-frequency data and the processed first low-frequency data to obtain a second digital signal;
converting the second digital signal to a third electrical signal;
and restoring the third electric signal into a second sound signal and outputting the second sound signal.
In the embodiment of the present invention, the audio collecting unit may be a microphone, and may collect sound; or other units connected to the communication unit, which can acquire audio data through the communication unit. The communication unit may be a wireless communication unit or a wired communication unit.
The central processing unit calculates a playing volume value according to the environmental sound data, and determines a first adjusting coefficient for amplifying/reducing the first electric signal according to the playing volume value, so that a power value required by the first power adjusting unit for adjusting the first electric signal can be further obtained.
The first signal processing unit may convert the first audio data received by the audio acquisition unit from the first acoustic signal into a first electrical signal in the form of an analog signal, and may further convert the second electrical signal processed by the first power adjustment unit into a first digital signal.
The first power adjusting unit may be configured to adjust power of the input audio signal, for example, amplify the power of the input audio signal, and adjust a gain of the audio amplifier to adjust an amplification factor of the power of the audio signal, so as to adjust a volume of the audio signal accordingly. For example, when the electronic device is a television, the volume of sound output by the television can be adjusted by controlling the gain of the audio amplifier.
The second signal unit has different signal processing channels, and can distribute the first digital signal to different signal processing channels for processing according to a preset distribution rule after the first digital signal is analyzed.
By adopting the technical scheme of the embodiment, the intelligent power adjusting device is provided with a communication unit for receiving and sending data, an audio acquisition unit for acquiring environmental sound data and first audio data, a first power adjusting unit, a first signal processing unit, a second signal processing unit and a central processing unit. Adjusting the electric signal in the process of carrying out analog-to-digital conversion on the acquired first audio data through the playing volume value obtained based on the environmental sound data; the second signal processing unit processes the first digital signal to obtain a second digital signal, and the second digital signal is subjected to digital-to-analog conversion to restore a second sound signal for output, so that the purpose of adjusting the volume can be achieved through intelligently adjusting the power.
In some possible embodiments of the present invention, the method further comprises:
acquiring a volume test data set through the communication unit;
selecting first volume test data from the volume test data set according to a preset rule;
converting the first volume test data into a fourth electric signal, and outputting the fourth electric signal after restoring the fourth electric signal into a second sound signal;
and determining reference volume data according to the feedback information of the user to the output second sound signal.
It will be appreciated that in order to improve the accuracy of the power adjustment, it is necessary to determine a reference criterion, and in embodiments of the invention, the amount of power to be used is determined by determining reference volume data that matches the user. Firstly, the communication unit is connected with other intelligent terminals or servers to obtain a volume test data set. The volume test data sets are classified according to different standards, for example, the volume test data sets can be classified according to the types of sound output devices (such as earphones, sound boxes, televisions and the like), the sound effect attributes (such as high frequency, low frequency, amplitude and the like) of the sound output devices, the environments (such as living rooms, squares, meeting rooms and the like) where the sound output devices are located, the user attributes (such as old people, children, hearing-impaired people and the like) of the sound output devices and the like. The central processing unit is configured to select, according to a preset rule (for example, a correspondence between a type of the sound output device and the test data, or a correspondence between an environment in which the sound output device is located and the test data), first volume test data that matches a current usage scenario from the volume test data set. Converting the first volume test data into a fourth electric signal through the second signal processing unit, restoring the fourth electric signal into a second sound signal and outputting the second sound signal; after hearing the output second sound signal, the user can feedback it, such as by feeding back information through a graphical user interface or by replying to voice feedback information, etc., where the feedback information may be "audible", "not audible", etc., or a selection submitted for a given option, or a reply to a particular question (e.g. what is your name); but also information reflected by the brain wave signals. And the central processing unit determines reference volume data according to the feedback information of the user to the output second sound signal.
It should be noted that in other embodiments of the present invention, in order to adjust the power more intelligently to achieve efficient management of the volume, the first neural network may also be trained to form a reference volume model based on historical volume data, scene data, user data, etc.
In some possible embodiments of the present invention, the power intelligent regulation apparatus further includes a second power regulation unit, and the power intelligent regulation method further includes:
and adjusting the third electric signal by adjusting the power according to the relation among the reference volume data, the volume and the current value.
It can be understood that, in order to make power regulation efficient and accurate and avoid the adverse effect on elements caused by the excessive workload of the first power regulation unit, in the embodiment of the present invention, the second power regulation unit is added. And the second power adjusting unit adjusts the third electric signal by changing the magnitude of the current value by adjusting the power according to the relation among the reference volume data, the volume and the current value so as to achieve the purpose of adjusting the volume to the optimal state.
In some possible embodiments of the present invention, the method further comprises: acquiring first vibration data and/or second vibration data generated when the first power regulating unit and/or the second power regulating unit work;
the central processing unit determines first noise data and/or second noise data according to the first vibration data and/or the second vibration data;
acquiring an incidence relation model between the noise and the vibration and power of the power adjusting unit;
and driving the first power regulating unit and/or the second power regulating unit to work according to the incidence relation model and the first noise data and/or the second noise data.
It can be understood that the device itself will vibrate during the operation and under the influence of other terminals, and the vibration will affect the final output volume and sound effect, thereby bringing bad user experience. In order to solve the foregoing problems, in the embodiments of the present invention, a vibration monitoring unit is additionally provided, which may be, but not limited to, monitor the operating states of the first power regulating unit and/or the second power regulating unit, and collect first vibration data and/or second vibration data generated when the first power regulating unit and/or the second power regulating unit operate.
And the central processing unit determines first noise data generated when the first power regulating unit works and/or second noise data generated when the second power regulating unit works according to the first vibration data and/or the second vibration data.
It should be noted that, in the embodiment of the present invention, an association relationship model may be formed in advance by acquiring historical data (including noise magnitude data, vibration magnitude data of the power regulation unit, power magnitude data, and the like) during the operation of the first power regulation unit and/or the second power regulation unit, and by training the second neural network, determining an association relationship between noise generated during the operation of the first power regulation unit and/or the second power regulation unit and its own vibration magnitude and power magnitude.
And finally, the central processing unit drives the first power regulating unit and/or the second power regulating unit to work according to the incidence relation model and the first noise data and/or the second noise data, so that the optimal volume and sound effect can be achieved by using the most matched power under the condition of meeting the hearing requirement.
In some possible embodiments of the present invention, after the step of acquiring the first audio data, the method further includes: analyzing the first audio data, grouping the first audio data according to sound sources, and allocating a group identifier to each group;
the step of converting the first audio data from a first acoustic signal to a first electrical signal comprises: converting the grouped first audio data from a first acoustic signal to a first electrical signal in units of groups;
the step of distributing the first digital signal to different signal processing channels for processing includes: and distributing the first digital signal to different signal processing channels for processing according to the corresponding relation between the preset group identification and the signal processing channels.
It can be understood that, in order to ensure the optimal processing effect and no data loss when processing the audio data, in an embodiment of the present invention, the central processing unit analyzes the first audio data, groups the first audio data according to sound sources, and assigns a group identifier to each group; converting the grouped first audio data from a first acoustic signal into a first electric signal in units of groups.
Wherein, the step of distributing the first digital signal to different signal processing channels for processing in the second signal processing unit comprises:
and distributing the first digital signal to different signal processing channels for processing according to the corresponding relation between the preset group identification and the signal processing channels.
It should be noted that the processing flow and processing method of the signals by different signal processing channels may be different, and by this processing method, the excessive processing of the important signals can be avoided, and the interference of the unimportant signals can also be avoided by reducing or eliminating the important signals.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art will recognize that the embodiments described in this specification are preferred embodiments and that acts or modules referred to are not necessarily required for this application.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit may be stored in a computer readable memory if it is implemented in the form of a software functional unit and sold or used as a separate product. Based on such understanding, the technical solutions of the present application, which are essential or part of the technical solutions contributing to the prior art, or all or part of the technical solutions, may be embodied in the form of a software product, which is stored in a memory and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the above methods of the embodiments of the present application. And the aforementioned memory comprises: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash Memory disks, read-Only memories (ROMs), random Access Memories (RAMs), magnetic or optical disks, and the like.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, the specific implementation manner and the application scope may be changed, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications can be easily made by those skilled in the art without departing from the spirit and scope of the present invention, and it is within the scope of the present invention to include different functions, combination of implementation steps, software and hardware implementations.
Claims (10)
1. A power intelligent regulation device for an audio amplifier, comprising: the system comprises a communication unit for receiving and transmitting data, an audio acquisition unit for acquiring environmental sound data and first audio data, a first power regulation unit, a first signal processing unit, a second signal processing unit and a central processing unit;
the audio acquisition unit is used for transmitting the environmental sound data to the central processing unit;
the central processing unit is used for calculating a playing volume value according to the environmental sound data;
the first signal processing unit is used for converting the first audio data from a first acoustic signal into a first electric signal;
the central processing unit is further used for determining a first adjusting coefficient for amplifying/reducing the first electric signal according to the playing volume value;
the first power regulating unit is used for amplifying/reducing the first electric signal into a second electric signal according to the first regulating coefficient;
the first signal processing unit is further configured to convert the second electrical signal into a first digital signal;
the second signal processing unit is configured to:
distributing the first digital signal to different signal processing channels for processing;
merging the first digital signals processed by different signal processing channels, dividing the first digital signals into first high-frequency data and first low-frequency data, and processing the first high-frequency data and the first low-frequency data respectively;
merging the processed first high-frequency data and the processed first low-frequency data to obtain a second digital signal;
converting the second digital signal to a third electrical signal;
and restoring the third electric signal into a second sound signal and outputting the second sound signal.
2. The intelligent power regulation device of claim 1, wherein the audio acquisition unit is further configured to obtain a volume test data set via the communication unit;
the central processing unit is used for selecting first volume test data from the volume test data set according to a preset rule;
the second signal processing unit is configured to convert the first volume test data into a fourth electrical signal, restore the fourth electrical signal into a second acoustic signal, and output the second acoustic signal;
and the central processing unit is used for determining reference volume data according to the feedback information of the user to the output second sound signal.
3. The power intelligent regulation device of claim 2, further comprising a second power regulation unit;
and the second power adjusting unit is used for adjusting the third electric signal by adjusting the power according to the relation among the reference volume data, the volume and the current value.
4. The power intelligent regulation device of claim 3, further comprising a vibration monitoring unit;
the vibration monitoring unit is used for acquiring first vibration data and/or second vibration data generated when the first power regulating unit and/or the second power regulating unit work;
the central processing unit is also used for determining first noise data and/or second noise data according to the first vibration data and/or the second vibration data;
obtaining an incidence relation model between the vibration magnitude and the power magnitude of the noise and power adjusting unit;
and driving the first power regulating unit and/or the second power regulating unit to work according to the incidence relation model and the first noise data and/or the second noise data.
5. The intelligent power regulation device of claim 4, wherein the central processing unit is further configured to analyze the first audio data, group the first audio data by sound source, and assign a group identifier to each group;
the first signal processing unit is configured to convert the first audio data from a first acoustic signal to a first electrical signal, specifically:
converting the grouped first audio data from a first acoustic signal into a first electrical signal in units of groups;
the second signal processing unit is configured to distribute the first digital signal to different signal processing channels for processing, specifically:
and distributing the first digital signal to different signal processing channels for processing according to the corresponding relation between the preset group identification and the signal processing channels.
6. An intelligent power adjustment method for an audio amplifier, wherein the intelligent power adjustment device comprises a communication unit for receiving and transmitting data, an audio acquisition unit for acquiring environmental sound data and first audio data, a first power adjustment unit, a first signal processing unit, a second signal processing unit and a central processing unit, and the intelligent power adjustment method comprises:
calculating a playing volume value according to the environmental sound data;
converting the first audio data from a first acoustic signal to a first electrical signal;
determining a first adjustment coefficient for amplifying/reducing the first electric signal according to the playing volume value;
amplifying/reducing the first electrical signal by the first adjustment factor to form a second electrical signal;
converting the second electrical signal into a first digital signal;
distributing the first digital signal to different signal processing channels for processing;
merging the first digital signals processed by different signal processing channels, dividing the first digital signals into first high-frequency data and first low-frequency data, and processing the first high-frequency data and the first low-frequency data respectively;
merging the processed first high-frequency data and the processed first low-frequency data to obtain a second digital signal;
converting the second digital signal to a third electrical signal;
and restoring the third electric signal into a second sound signal and outputting the second sound signal.
7. The intelligent power regulation method of claim 6, further comprising:
acquiring a volume test data set through the communication unit;
selecting first volume test data from the volume test data set according to a preset rule;
converting the first volume test data into a fourth electric signal, and outputting the fourth electric signal after restoring the fourth electric signal into a second sound signal;
and determining reference volume data according to the feedback information of the user to the output second sound signal.
8. The power intelligent regulation method according to claim 7, wherein the power intelligent regulation device further comprises a second power regulation unit, and the power intelligent regulation method further comprises:
and adjusting the third electric signal by adjusting the power according to the relation among the reference volume data, the volume and the current value.
9. The intelligent power regulation method of claim 8, further comprising:
acquiring first vibration data and/or second vibration data generated when the first power regulating unit and/or the second power regulating unit work;
determining first noise data and/or second noise data according to the first vibration data and/or the second vibration data;
acquiring an incidence relation model between the noise and the vibration and power of the power adjusting unit;
and driving the first power regulating unit and/or the second power regulating unit to work according to the incidence relation model and the first noise data and/or the second noise data.
10. The power intelligent regulation method of claim 9, further comprising, after the step of acquiring first audio data: analyzing the first audio data, grouping the first audio data according to sound sources, and allocating a group identifier to each group;
the step of converting the first audio data from a first acoustic signal to a first electrical signal comprises: converting the grouped first audio data from a first acoustic signal into a first electrical signal in units of groups;
the step of distributing the first digital signal to different signal processing channels for processing includes: and distributing the first digital signal to different signal processing channels for processing according to the corresponding relation between the preset group identification and the signal processing channels.
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| CN202210729900.4A CN115278454A (en) | 2022-06-24 | 2022-06-24 | Intelligent power adjusting method and device for audio amplifier |
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| CN202210729900.4A CN115278454A (en) | 2022-06-24 | 2022-06-24 | Intelligent power adjusting method and device for audio amplifier |
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| CN202210729900.4A Pending CN115278454A (en) | 2022-06-24 | 2022-06-24 | Intelligent power adjusting method and device for audio amplifier |
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