CN109346048B - Karaoke sound effect processing device and sound effect processing system - Google Patents
Karaoke sound effect processing device and sound effect processing system Download PDFInfo
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- 230000005236 sound signal Effects 0.000 claims abstract description 59
- 238000000034 method Methods 0.000 claims description 11
- 241001342895 Chorus Species 0.000 claims description 7
- HAORKNGNJCEJBX-UHFFFAOYSA-N cyprodinil Chemical compound N=1C(C)=CC(C2CC2)=NC=1NC1=CC=CC=C1 HAORKNGNJCEJBX-UHFFFAOYSA-N 0.000 claims description 7
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/36—Accompaniment arrangements
- G10H1/361—Recording/reproducing of accompaniment for use with an external source, e.g. karaoke systems
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Abstract
The invention provides a karaoke sound effect processing device and a sound effect processing system, wherein the sound effect processing device comprises a DSP digital signal processing chip and a digital signal selection module; the DSP digital signal processing chip is used for receiving a microphone analog signal, converting the microphone analog signal into a microphone digital signal and outputting the microphone digital signal to a host computer so as to score according to the microphone digital signal by the host computer; the digital signal selection module is used for outputting the DSP digital signal processing chip to screen out corresponding digital audio from the multipath digital audio, and outputting the digital audio to the network audio module so as to be sent to network equipment by the network audio module. The sound effect processing device enables the karaoke system to perform centralized control and management on the audio signals, and realizes simultaneous processing of a plurality of audio signals.
Description
Technical Field
The invention relates to the technical field of karaoke, in particular to a karaoke sound effect processing device and a karaoke sound effect processing system.
Background
Currently, the volume vending type karaoke is extremely rapidly developed. At present, in urban busy places, the vending type KTV business places are visible everywhere. At the same time, business venues using a plurality of karaoke parlors and a performance hall as entertainment forms are also beginning to appear.
A conventional karaoke system is generally composed of a song-requesting machine, a wire/wireless microphone, a karaoke machine (analog/digital-digital karaoke machine, also called karaoke effector), a display device (television/projector), a sound system, etc., and the signal transmission path of the system is divided into two signal transmission paths of audio and video. The devices in the system only have the connection relation of signal links, each set of device can only work independently, and centralized control and management on each device are lacked, so that the whole karaoke system has single function and cannot realize complex audio processing functions. For example, audio processing by network interconnection cannot be realized, and a plurality of audio processing events cannot be performed simultaneously.
Disclosure of Invention
The invention provides a karaoke sound effect processing device and a karaoke sound effect processing system, so that the karaoke system can perform centralized control and management on audio signals, and a plurality of audio signals can be processed simultaneously.
The invention provides the following scheme:
a karaoke sound effect processing device comprises a DSP digital signal processing chip and a digital signal selecting module; the DSP digital signal processing chip is used for receiving a microphone analog signal, converting the microphone analog signal into a microphone digital signal and outputting the microphone digital signal to a host computer so as to score according to the microphone digital signal by the host computer; the digital signal selection module is used for outputting the DSP digital signal processing chip to screen out corresponding digital audio from the multipath digital audio, and outputting the digital audio to the network audio module so as to be sent to network equipment by the network audio module.
In an embodiment, the multiple channels of digital audio include a first audio, a second audio, and a third audio; the digital signal selection module is used for screening out corresponding digital audio from multiple paths of digital audio output by the DSP digital signal processing chip, and outputting the digital audio to the network audio module so as to be sent to network equipment by the network audio module, and comprises the following steps: when the network audio module receives a request for acquiring the digital audio, judging the request type of the request; if the request type is a first type corresponding to a first audio, sending a request for acquiring the first audio to the digital signal selection module, receiving the first audio screened by the digital signal selection module from the DSP digital signal processing chip, and sending the first audio to the network equipment; if the request type is a second type corresponding to a second audio, sending a request for acquiring the second audio to the digital signal selection module, receiving the second audio screened by the digital signal selection module from the DSP digital signal processing chip, and sending the second audio to the network equipment; and if the request type is a third type corresponding to third audio, sending a request for acquiring the third audio to the digital signal selection module, receiving the third audio screened by the digital signal selection module from the DSP digital signal processing chip, and sending the third audio to the network equipment.
In an embodiment, the first audio is dry sound, the second audio is wet sound, and the third audio is mixed audio; the first type includes a type of chorus with the network device; the second type includes a type of live viewing the network device; the third type comprises a multiparty intercom type; if the request type is a first type corresponding to a first audio, sending a request for acquiring the first audio to the digital signal selection module, receiving the first audio screened by the digital signal selection module from the DSP digital signal processing chip, and sending the first audio to the network device, wherein the method comprises the following steps: if the request type is chorus with the network equipment, sending a request for acquiring the wet sound to the digital signal selection module, receiving the wet sound screened by the digital signal selection module from the DSP digital signal processing chip, and sending the wet sound to the network equipment; if the request type is a second type corresponding to a second audio, sending a request for acquiring the second audio to the digital signal selection module, receiving the second audio screened by the digital signal selection module from the DSP digital signal processing chip, and sending the second audio to the network device, wherein the method comprises the following steps: if the request type is live broadcast for watching the network equipment, sending a request for acquiring the mixed audio to the digital signal selection module, receiving the mixed audio screened by the digital signal selection module from the DSP digital signal processing chip, and sending the mixed audio to the network equipment; if the request type is a third type corresponding to a third audio, sending a request for obtaining the third audio to the digital signal selection module, receiving the third audio screened by the digital signal selection module from the DSP digital signal processing chip, and sending the third audio to the network device, wherein the method comprises the following steps: if the request type is multiparty intercom, sending a request for acquiring the dry sound to the digital signal selection module, receiving the dry sound screened by the digital signal selection module from the DSP digital signal processing chip, outputting the multi-channel digital audio, and sending the dry sound to the network equipment.
In one embodiment, the device further comprises a sound card chip; the sound card chip is connected with the DSP digital signal processing chip and is also connected with the host through a USB-HUB chip or through a USB; the sound card chip is used for transmitting digital audio between the DSP digital signal processing chip and the host.
In one embodiment, the device further comprises an MCU micro control unit; the MCU micro control unit is connected with the DSP digital signal processing chip and is also connected with the host through a USB-HUB chip; the MCU micro control unit is used for receiving the parameters output by the host and setting the parameters of the DSP digital signal processing chip according to the parameters.
In one embodiment, the sound effect processing device is provided with a first wireless interface and a second wireless interface; the first wireless interface is used for being connected with the transmitting module and transmitting the main channel audio signal to the main sound box through the transmitting module; the second wireless interface is used for being connected with the transmitting module and transmitting the auxiliary channel audio signals to the earphone through the transmitting module.
In an embodiment, the audio processing device is further configured to convert the primary channel audio signal of the I2S type into the primary channel audio signal of the SPDIF type, send the primary channel audio signal of the SPDIF type to the transmitting module through the first wireless interface, and receive the primary channel audio signal of the SPDIF type by the transmitting module at a receiving end; the sound effect processing device is further configured to convert the auxiliary channel audio signal of the I2S type into the auxiliary channel audio signal of the SPDIF type, and send the auxiliary channel audio signal of the SPDIF type to the transmitting module through the second wireless interface, so that the transmitting module converts the auxiliary channel audio signal of the SPDIF type into the auxiliary channel audio signal of the I2S type at a receiving end for receiving.
In one embodiment, the sound effect processing device is provided with a first microphone receiving end and a second microphone receiving end; the first microphone receiving end is used for receiving signals of the wireless microphone, and the second microphone receiving end is used for receiving signals of the wired microphone; the sound effect processing device is used for sending the signals of the wireless microphone and the signals of the wired microphone to the host, so that the host can pair and set the wireless microphone and the wired microphone according to the signals of the wireless microphone and the signals of the wired microphone.
In an embodiment, the sound effect processing device is further configured to receive a frequency parameter of the wireless microphone sent by the host, send the frequency parameter to the wireless microphone to perform parameter setting on a working frequency, and set the working frequency parameter of the wired microphone through the wireless microphone.
The sound effect processing system comprises a host and further comprises the sound effect processing device according to any embodiment; the host is connected with the sound effect processing device to control the processing of the audio signals in the sound effect processing device.
The karaoke sound effect processing device provided by the embodiment comprises a DSP digital signal processing chip and a digital signal selecting module. The DSP digital signal processing chip can acquire a microphone analog signal from a microphone of the karaoke system, convert the analog signal into a digital signal and output the digital signal to the host, and the host scores the digital signal of the microphone to realize man-machine interaction during Karaoke. Meanwhile, the digital signal selection module is connected with the DSP digital signal processing chip, and the audio output by the DSP digital signal processing chip is screened to output the screened audio to the network audio module of the Karaoke system, and the network audio module is transmitted to other network devices, so that the interaction with a plurality of network devices in the network platform is realized. Therefore, the audio processing device of the karaoke can perform centralized control and management on the audio signals in the karaoke system, and realize simultaneous processing of a plurality of audio signals, so that the functions of the karaoke system are more diversified.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a karaoke system according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of the pairing of the working frequencies of the wireless microphone and the wired microphone provided by the invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
It will be understood by those within the art that, unless expressly stated otherwise, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, and that "first," "second," and "the" are used herein merely to distinguish one and the same technical feature and do not limit the order, quantity, etc. of that technical feature. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The present invention provides a karaoke sound effect processing device to process an audio effect of a karaoke system, thereby enabling the karaoke system to process a plurality of audio signals simultaneously. The karaoke system is described in detail as follows:
as shown in fig. 1, the karaoke system 10 provided by the present invention includes a host 110, an audio processing device 120, a microphone 130, a network audio transmission module 140, a transmitting module 150 and an audio control panel 160. The sound effect processing device 120 includes a DSP digital signal processing chip 121, a sound card chip 123, an MCU micro control unit 125, and a digital signal selection module 127.
The DSP digital signal processing chip 121 in the sound effect processing device 120 is connected to the microphone 130, and is configured to receive a microphone analog signal of the microphone 130. Meanwhile, the DSP digital signal processing chip 121 converts the microphone analog signal into a microphone digital signal and outputs the microphone digital signal to the host 110, and the host 110 scores the K song signal received in the microphone 130 according to the microphone digital signal. The host 110 may be a PC computer, an android host, or a Linux host.
The digital signal selection module 127 is connected to the DSP digital signal processing chip 121 and simultaneously connected to the network audio module 140 through the interface 2. The digital signal selection module 127 screens out the corresponding digital audio from the multiple digital audio output by the DSP digital signal processing chip 121, and outputs the screened digital audio to the network audio module 140, and the network audio module 140 sends the digital audio to the network device 20. The multiple digital audio output by the DSP digital signal processing chip 121 may be an audio signal when the user sings K, which is input by the microphone 130, or an audio signal accessed through the internet, or a mixed audio signal of the audio signal accessed through the internet and the local K song audio signal. The digital signal selection module 127 may screen the DSP digital signal processing chip 121 for digital audio signals by: the instruction of the host 110 is acquired, and the corresponding digital audio is screened out from the multiple paths of digital audio output by the digital signal processing chip 121 according to the instruction.
In an embodiment, the multiple channels of digital audio include a first audio, a second audio, and a third audio; the digital signal selection module is configured to screen out corresponding digital audio from the multiple paths of digital audio output by the DSP digital signal processing chip 121, and output the digital audio to the network audio module 140, so that the digital audio is sent to the network device 20 by the network audio module 140, and includes: when the network audio module 140 receives a request for acquiring the digital audio, judging the request type of the request; if the request type is a first type corresponding to a first audio, sending a request for acquiring the first audio to the digital signal selection module, receiving the first audio screened by the digital signal selection module from the DSP digital signal processing chip 121, and sending the first audio to the network device 20; if the request type is a second type corresponding to a second audio, sending a request for obtaining the second audio to the digital signal selection module, receiving the second audio screened by the digital signal selection module from the DSP digital signal processing chip 121, and sending the second audio to the network device 20; if the request type is a third type corresponding to a third audio, sending a request for obtaining the third audio to the digital signal selection module, receiving the third audio screened by the digital signal selection module from the DSP digital signal processing chip 121, and sending the third audio to the network device 20.
In this embodiment, the multiple digital audio includes a first audio, a second audio, and a third audio, and may include more audio. The digital signal selection module screens the multipath digital audio for digital audio in the following modes: when the network audio module 140 receives a request for acquiring digital audio, the request type of the request is judged, and the first audio, the second audio or the third audio is selected from the multiple paths of digital audio according to the request type. At the same time, the screened audio is sent to the network device 20.
In one implementation of this embodiment, the first audio is dry sound, the second audio is wet sound, and the third audio is mixed audio; the first type includes a type of chorus with the network device; the second type includes a type of live viewing the network device; the third type includes a multiparty intercom type.
Specifically, the multiple paths of digital audio output from the DSP digital signal processing chip 121 include dry, wet and mixed audio. The dry sound represents a human voice signal received by the microphone 130 without a musical effect. The wet sound represents a human sound signal subjected to musical effect processing. The mixed audio represents a signal after the human voice signal and the music signal are mixed. The digital signal selection module 127 is configured to screen out corresponding digital audio from the multiple paths of digital audio output by the DSP digital signal processing chip 121, and output the digital audio to the network audio module 140, so that the digital audio is sent to the network device 20 by the network audio module 140, and includes: when the network audio module 140 receives a request for acquiring the digital audio, judging the request type of the request; if the request type is chorus with the network device, sending a request for acquiring the wet sound to the digital signal selection module 127, receiving the wet sound screened by the digital signal selection module 127 from the DSP digital signal processing chip 121, and sending the wet sound to the network device 20; if the request type is live broadcast for watching the network device 20, sending a request for obtaining the mixed audio to the digital signal selection module 127, receiving the mixed audio screened by the digital signal selection module 127 from the DSP digital signal processing chip 121, and sending the mixed audio to the network device 20; if the request type is multiparty intercom, a request for acquiring the dry sound is sent to the digital signal selection module 127, the dry sound screened out of the multipath digital audio is output from the DSP digital signal processing chip 121 by the digital signal selection module 127 and the dry sound is sent to the network device 20.
In this embodiment, the network audio module 140 detects whether a request to acquire the digital audio has been received. The request for obtaining the digital audio may be an instruction related to the host 110 sending to the network audio module 140, so that the network audio module 140 generates a corresponding request. Alternatively, the network audio module 140 receives related requests from within the same network. Wherein the types of requests include a first type of chorus with the network device 20, a second type of live watching the network device 20, and a third type of multiparty intercom. The network audio module 140, upon receiving a request to obtain the digital audio, identifies the request. If the request is of the first type, the network audio module 140 sends a request for acquiring wet sound to the digital signal selection module 127, and at the same time, the network audio module 140 receives wet sound screened by the digital signal selection module 127 from the DSP digital signal processing chip 121, and sends the wet sound to the network device 20. If the request is of the second type, the network audio module 140 sends a request for acquiring the mixed audio to the digital signal selection module 127, and at the same time, the network audio module 140 receives the mixed audio screened by the digital signal selection module 127 from the DSP digital signal processing chip 121, and sends the mixed audio to the network device 20. If the request is of the third type, the network audio module 140 sends a request for acquiring the dry sound to the digital signal selection module 127, and at the same time, the network audio module 140 receives the dry sound screened by the digital signal selection module 127 from the DSP digital signal processing chip 121, and sends the dry sound to the network device 20.
In one embodiment, as shown in fig. 1, the sound card chip 123 of the sound effect processing device 10 is connected to the DSP digital signal processing chip 121 through the interface 1. The sound card chip 123 is used for transmitting digital audio between the DSP digital signal processing chip 121 and the host 110. The sound card chip 123 may be plural. The plurality of sound card chips 123 transmit a plurality of digital audio signals, respectively. In one embodiment, the sound card chip 123 is also connected to the host 110 through a USB-HUB chip (not shown). Alternatively, the sound card chip 123 is also connected to the host 110 through USB. In other embodiments, the sound card chip 123 may also be connected to the host 110 using other connection forms.
In one embodiment, as shown in fig. 1, the MCU micro-control unit 125 of the sound effect processing device 10 is connected to the DSP digital signal processing chip 121. The MCU micro control unit 125 is configured to receive the parameter output by the host 110, and set the parameter of the DSP digital signal processing chip 121 according to the parameter. The parameters herein include microphone related parameters, sound effect processing related parameters, output signal related parameters, system parameters of the DSP digital signal processing chip 121, music signal related parameters, and the like. The MCU micro control unit 125 causes the DSP digital signal processing chip 121 to process the relevant signals according to the relevant parameters by setting the relevant parameters of the DSP digital signal processing chip 121. In one embodiment, the MCU micro control unit 125 is also connected to the host 110 through a USB-HUB chip (not shown).
In one embodiment, as shown in fig. 1, the sound processing apparatus 120 is provided with a first wireless interface and a second wireless interface. The first wireless interface is an interface 6, and the second wireless interface is an interface 7. The sound processing device 120 is connected to the transmitting module 150 through the interface 6 and the interface 7, respectively. The sound effect processing apparatus 120 is connected to the transmitting module 150 through the interface 6, and transmits a main channel audio signal among the audio signals to a main sound box (not shown) of the karaoke system through the transmitting module 150. The sound effect processing device 120 is connected to the transmitting module 150 through the interface 7, and transmits the auxiliary channel audio signal of the audio signal to the earphone (not shown) through the transmitting module 150. The user can select to play the audio with headphones or a main speaker.
In one implementation of this embodiment, the audio processing apparatus 120 converts the I2S type main channel audio signal into the SPDIF type main channel audio signal, and then sends the SPDIF type main channel audio signal to the transmitting module 150 through the interface 6. The transmitting module 150 converts the SPDIF type main channel audio signal into the I2S type main channel audio signal at the receiving end and then receives the same. Similarly, the audio processing apparatus 120 converts the I2S type auxiliary channel audio signal into the SPDIF type auxiliary channel audio signal, and then sends the SPDIF type auxiliary channel audio signal to the transmitting module 150 through the interface 6. The transmitting module 150 converts the SPDIF type auxiliary channel audio signal into the I2S type auxiliary channel audio signal at the receiving end and then receives the same.
In one embodiment, as shown in fig. 1, the sound processing device 120 is provided with a first microphone receiving end and a second microphone receiving end. The first microphone receiving end is a port 3, and the second microphone receiving end is a port 4. Microphone 130 includes a wired microphone and a wireless microphone. The sound effect processing device 120 is connected to the wireless microphone through the port 3 to receive the signal of the wireless microphone. The sound effect processing device 120 is connected to the wired microphone through the port 4 to receive the signal of the wired microphone. Further, the sound effect processing device 120 transmits the signal of the wireless microphone and the signal of the wired microphone to the host 110. The host 110 pairs the wireless microphone and the wired microphone according to the signals of the wireless microphone and the signals of the wired microphone.
Further, the sound effect processing device 120 also receives the frequency parameter of the wireless microphone sent by the host 110, and sends the frequency parameter to the wireless microphone to perform parameter setting on the working frequency. Meanwhile, the working frequency parameters of the wired microphone are set through the wireless microphone. The wireless microphone and the wired microphone operating frequency pairing flow is shown in fig. 2.
In one embodiment, as shown in FIG. 1, the sound processing device 120 is connected to a sound control panel 160. A plurality of buttons are provided in the sound effect control panel 160. Such as a music volume adjustment button, a microphone volume adjustment button, an effect volume adjustment button, etc. The user can make adjustments to the relevant sound effects of the karaoke system through the music control panel 160. When receiving the sound effect control signal output from the sound effect control panel 160, the sound effect processing device 120 controls any one of the music volume, the microphone volume, and the effect volume. Specifically, when the sound processing apparatus 120 receives the sound control signal output from the sound control panel 160, it recognizes the sound control signal. If the sound effect control signal is a signal for controlling the volume of music, the sound effect processing device 120 controls the volume of the corresponding music. If the sound effect control signal is a signal for controlling the volume of the microphone, the sound effect processing device 120 controls the volume of the microphone. If the sound effect control signal is a signal for controlling the effect volume, the sound effect processing device 120 controls the corresponding effect volume.
The invention also provides a sound effect processing system. As shown in fig. 1, the sound processing system 30 includes a host 110 and the sound processing apparatus 120 according to any of the above embodiments. The host 110 is connected to the sound processing device 120 to control the processing of the audio signal in the sound processing device 120. Specifically, the manner in which the host 110 controls the audio signal processing device 120 to process the audio signal can be described in the above embodiments.
The following provides a specific implementation scenario for the above-mentioned sound processing apparatus, sound processing system, and karaoke system. The method comprises the following steps:
the multifunctional karaoke system comprises a host, an audio processor, an HDMI switcher, a network audio module, a wireless microphone module, two groups of 5.8G independent transmitting/receiving modules, a power supply module, a large screen display device and the like.
The invention adopts the host as a media center to realize the functions of song requesting, audio playing, recording, song library management, peripheral control and the like. The host communicates with the sound effect processor (the sound effect processing center and the system control center) in a USB-HID mode, and all audio parameters of the sound effect processor can be configured and adjusted through the USB-HID. The host computer also controls the peripheral devices such as the HDMI change-over switch, the network audio module and the like through the USB-HID, so that the external HDMI video signal and the external audio and local audio/video signal from the network audio module are switched.
The sound effect processor is a sound effect processing center and a control center, and is connected with the host through a USB. Specifically, the digital AUDIO of the PC is transmitted to the sound effect processor through the USB-HUB chip and the USB AUDIO chip. The USB-HUB chip is connected with the MCU of the sound effect processor, and the data communication between the host and the sound effect processor is established through the USB-HID.
The sound effect processor is provided with two paths of USB3.0 interfaces and is used for being externally connected with a 5.8G transmitting module. The module is used for installing the 5.8G transmitting module in a place which is not blocked by any metal shield and other objects through the connecting wire, so that 5.8G signals can be transmitted better. The input signal of the 5.8G module is an I2S type signal, and the I2S type signal is easy to be interfered because the connecting wire can be longer, so that the sound effect processor firstly converts the I2S type signal into an SPDIF type signal and then converts the I2S type signal into the 5.8G transmitting module at the receiving end of the 5.8G transmitting module in order to better ensure the signal quality. The two paths of 5.8G transmitting modules transmit the audio signals of the main channel to the main sound box through 5.8G transmission. Because the connecting wire is omitted, the installation is more convenient, and the device is more attractive and practical. The other path transmits the auxiliary channel audio signal to the wireless earphone amplifier through 5.8G, drives the high-fidelity earphone, and the user can select the practical sound box to listen or select the practical sound box to listen through the earphone according to own preference.
The sound processor also has two microphone signal inputs. The sound effect processor is connected with the output of the wireless microphone through the XLR terminal, and the communication connection between the sound effect processor and the wireless microphone is realized by using an RS232 communication mode. The host can acquire the frequency information of the handheld end of the wireless microphone through the USB-HID and the RS232 communication interface of the MCU chip, and can also realize the pairing operation of the handheld microphone and the wireless microphone host. Thus, the complicated operation can be simplified and the operation is easy to use.
The sound effect processor is also connected with the sound effect control board through RS232 communication, and the sound effect control board is provided with a music volume adjusting knob, a microphone volume adjusting knob and an effect volume adjusting knob which are respectively used for controlling the music volume, the microphone volume and the effect volume in the sound effect processor module.
The invention adopts a large screen display device as the video terminal device. The HDMI is connected to the output end of the HDMI switcher, the input of the HDMI switcher is HDMI output and external HDMI signal input and output of the host, the HDMI switcher is connected to the USB terminal of the host through the USB-to-RS 232 module, and the host performs audio and video switching according to the received instruction. Because HDMI adopts hardware change-over switch, audio frequency adopts network audio frequency transmission, make audio and video delay time all be less than 10ms.
The foregoing is only a partial embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
It should be understood that each functional unit in the embodiments of the present invention may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules.
The foregoing is only a partial embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (10)
1. The karaoke sound effect processing device is characterized by comprising a DSP digital signal processing chip and a digital signal selection module;
the DSP digital signal processing chip is used for receiving a microphone analog signal, converting the microphone analog signal into a microphone digital signal and outputting the microphone digital signal to a host computer so as to score according to the microphone digital signal by the host computer;
the digital signal selection module is used for outputting the digital audio corresponding to the request type of the request from the DSP digital signal processing chip to screen out the digital audio corresponding to the request type when receiving the request for acquiring the digital audio, and outputting the digital audio to the network audio module so as to be sent to network equipment by the network audio module.
2. The sound effect processing apparatus of claim 1, wherein the plurality of channels of digital audio includes a first audio, a second audio, and a third audio; the digital signal selection module is used for outputting digital audio corresponding to the request type selected from the multi-channel digital audio output by the DSP digital signal processing chip, outputting the digital audio to the network audio module, and sending the digital audio to the network equipment by the network audio module, and comprises the following steps:
if the request type is a first type corresponding to a first audio, sending a request for acquiring the first audio to the digital signal selection module, receiving the first audio screened by the digital signal selection module from the DSP digital signal processing chip, and sending the first audio to the network equipment;
if the request type is a second type corresponding to a second audio, sending a request for acquiring the second audio to the digital signal selection module, receiving the second audio screened by the digital signal selection module from the DSP digital signal processing chip, and sending the second audio to the network equipment;
and if the request type is a third type corresponding to third audio, sending a request for acquiring the third audio to the digital signal selection module, receiving the third audio screened by the digital signal selection module from the DSP digital signal processing chip, and sending the third audio to the network equipment.
3. The sound effect processing apparatus of claim 2, wherein the first audio is dry sound, the second audio is wet sound, and the third audio is mixed audio; the first type includes a type of chorus with the network device; the second type includes a type of live viewing the network device; the third type comprises a multiparty intercom type;
if the request type is a first type corresponding to a first audio, sending a request for acquiring the first audio to the digital signal selection module, receiving the first audio screened by the digital signal selection module from the DSP digital signal processing chip, and sending the first audio to the network device, wherein the method comprises the following steps: if the request type is chorus with the network equipment, sending a request for acquiring the wet sound to the digital signal selection module, receiving the wet sound screened by the digital signal selection module from the DSP digital signal processing chip, and sending the wet sound to the network equipment;
if the request type is a second type corresponding to a second audio, sending a request for acquiring the second audio to the digital signal selection module, receiving the second audio screened by the digital signal selection module from the DSP digital signal processing chip, and sending the second audio to the network device, wherein the method comprises the following steps: if the request type is live broadcast for watching the network equipment, sending a request for acquiring the mixed audio to the digital signal selection module, receiving the mixed audio screened by the digital signal selection module from the DSP digital signal processing chip, and sending the mixed audio to the network equipment;
if the request type is a third type corresponding to a third audio, sending a request for obtaining the third audio to the digital signal selection module, receiving the third audio screened by the digital signal selection module from the DSP digital signal processing chip, and sending the third audio to the network device, wherein the method comprises the following steps: if the request type is multiparty intercom, sending a request for acquiring the dry sound to the digital signal selection module, receiving the dry sound screened by the digital signal selection module from the DSP digital signal processing chip, outputting the multi-channel digital audio, and sending the dry sound to the network equipment.
4. The sound processing apparatus of claim 1, further comprising a sound card chip; the sound card chip is connected with the DSP digital signal processing chip and is also connected with the host through a USB-HUB chip or through a USB; the sound card chip is used for transmitting digital audio between the DSP digital signal processing chip and the host.
5. The sound processing apparatus of claim 1, further comprising an MCU micro-control unit; the MCU micro control unit is connected with the DSP digital signal processing chip and is also connected with the host through a USB-HUB chip; the MCU micro control unit is used for receiving the parameters output by the host and setting the parameters of the DSP digital signal processing chip according to the parameters.
6. The sound processing apparatus of claim 1, wherein the sound processing apparatus is provided with a first wireless interface and a second wireless interface; the first wireless interface is used for being connected with the transmitting module and transmitting the main channel audio signal to the main sound box through the transmitting module; the second wireless interface is used for being connected with the transmitting module and transmitting the auxiliary channel audio signals to the earphone through the transmitting module.
7. The sound processing apparatus of claim 6, wherein the sound processing apparatus is further configured to convert the main channel audio signal of the I2S type into the main channel audio signal of the SPDIF type, send the main channel audio signal of the SPDIF type to the transmitting module through the first wireless interface, and receive the main channel audio signal of the SPDIF type into the main channel audio signal of the I2S type at a receiving end by the transmitting module; the sound effect processing device is further configured to convert the auxiliary channel audio signal of the I2S type into the auxiliary channel audio signal of the SPDIF type, and send the auxiliary channel audio signal of the SPDIF type to the transmitting module through the second wireless interface, so that the transmitting module converts the auxiliary channel audio signal of the SPDIF type into the auxiliary channel audio signal of the I2S type at a receiving end for receiving.
8. The sound processing apparatus of claim 1, wherein the sound processing apparatus is provided with a first microphone receiving end and a second microphone receiving end; the first microphone receiving end is used for receiving signals of the wireless microphone, and the second microphone receiving end is used for receiving signals of the wired microphone; the sound effect processing device is used for sending the signals of the wireless microphone and the signals of the wired microphone to the host, so that the host can pair and set the wireless microphone and the wired microphone according to the signals of the wireless microphone and the signals of the wired microphone.
9. The sound processing apparatus of claim 8, wherein the sound processing apparatus is further configured to receive a frequency parameter of the wireless microphone transmitted by the host, and transmit the frequency parameter to the wireless microphone to perform parameter setting on an operating frequency, and to perform parameter setting on the operating frequency parameter of the wired microphone through the wireless microphone.
10. An audio processing system comprising a host computer and an audio processing device according to any one of claims 1-9; the host is connected with the sound effect processing device to control the processing of the audio signals in the sound effect processing device.
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