CN116825058A - Drum set tuning and transmission system and method based on 2.4G wireless digital audio technology - Google Patents
Drum set tuning and transmission system and method based on 2.4G wireless digital audio technology Download PDFInfo
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- CN116825058A CN116825058A CN202310935177.XA CN202310935177A CN116825058A CN 116825058 A CN116825058 A CN 116825058A CN 202310935177 A CN202310935177 A CN 202310935177A CN 116825058 A CN116825058 A CN 116825058A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 32
- 238000005516 engineering process Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004891 communication Methods 0.000 claims abstract description 130
- 230000011664 signaling Effects 0.000 claims abstract description 31
- 230000005236 sound signal Effects 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 12
- 230000002618 waking effect Effects 0.000 claims description 5
- 230000007958 sleep Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 230000005059 dormancy Effects 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 1
Classifications
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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
- G10H1/0033—Recording/reproducing or transmission of music for electrophonic musical instruments
- G10H1/0083—Recording/reproducing or transmission of music for electrophonic musical instruments using wireless transmission, e.g. radio, light, infrared
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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
- G10H1/0033—Recording/reproducing or transmission of music for electrophonic musical instruments
-
- 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
- G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
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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
- G10H3/00—Instruments in which the tones are generated by electromechanical means
- G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
- G10H3/14—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means
- G10H3/146—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means using a membrane, e.g. a drum; Pick-up means for vibrating surfaces, e.g. housing of an instrument
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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
- G10H2230/00—General physical, ergonomic or hardware implementation of electrophonic musical tools or instruments, e.g. shape or architecture
- G10H2230/025—Computing or signal processing architecture features
- G10H2230/035—Power management, i.e. specific power supply solutions for electrophonic musical instruments, e.g. auto power shut-off, energy saving designs, power conditioning, connector design, avoiding inconvenient wiring
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Transmitters (AREA)
Abstract
The invention discloses a drum set tuning and transmission system based on a 2.4G wireless digital audio technology, which comprises a plurality of 2.4G wireless communication audio transmitters, a recording sound card and a 2.4G wireless communication audio receiver; the recording sound card comprises a 2.4G wireless receiving module, an audio processing module and a 2.4G wireless transmitting module which are sequentially connected, and also comprises a control module which is respectively connected with the 2.4G wireless receiving module, the audio processing module and the 2.4G wireless transmitting module; each 2.4G wireless communication audio transmitter is correspondingly connected with one microphone, and a plurality of microphones are respectively arranged at different positions to obtain sound sources sent by the drum set and singers; the 2.4G wireless communication audio receiver is connected with the electronic equipment; each 2.4G wireless communication audio transmitter and each 2.4G wireless receiving module, and each 2.4G wireless transmitting module and each 2.4G wireless communication audio receiver are connected based on an audio channel and a signaling channel. The invention also discloses a drum kit tuning and transmission method based on the 2.4G wireless digital audio technology.
Description
Technical Field
The invention relates to the technical field of audio signal processing, in particular to a drum kit tuning and transmission system and method based on a 2.4G wireless digital audio technology.
Background
In the existing drum set sound source acquisition equipment, a plurality of audio processing equipment are often required to be connected for use, the volume is small, the occupied positions are large, the use is not flexible enough due to the limitation of the movable range of signal line connection between the equipment.
Disclosure of Invention
The invention aims to provide a drum kit tuning and transmission system and method based on a 2.4G wireless digital audio technology, which can effectively solve the technical problems in the prior art.
In order to achieve the above objective, an embodiment of the present invention provides a drum set tuning and transmission system based on 2.4G wireless digital audio technology, which includes a plurality of 2.4G wireless communication audio transmitters, a recording sound card and a 2.4G wireless communication audio receiver; the recording sound card comprises a 2.4G wireless receiving module, an audio processing module and a 2.4G wireless transmitting module which are sequentially connected; each 2.4G wireless communication audio transmitter is correspondingly connected with a microphone, and a plurality of microphones are respectively arranged at different positions to obtain sound sources sent by the drum set and singers; the 2.4G wireless communication audio receiver is connected with the electronic equipment; each 2.4G wireless communication audio transmitter is connected with the 2.4G wireless receiving module, and the 2.4G wireless transmitting module is connected with the 2.4G wireless communication audio receiver based on an audio channel and a signaling channel; the sound recording sound card further comprises a control module which is respectively connected with the 2.4G wireless receiving module, the audio processing module and the 2.4G wireless transmitting module;
when the 2.4G wireless transmitting module wakes up autonomously, scanning a signaling channel, establishing connection with the 2.4G wireless communication audio receiver through a handshake protocol when scanning a connection signal broadcast by the 2.4G wireless communication audio receiver, and sending a wake-up instruction to the control module in a dormant state;
the control module receiving the wake-up instruction enters a starting state from a dormant state, generates an audio processing module wake-up instruction and a 2.4G wireless receiving module wake-up instruction after entering the starting state, and correspondingly sends the audio processing module and the 2.4G wireless receiving module in the dormant state, so that the audio processing module and the 2.4G wireless receiving module are awakened, and the awakened 2.4G wireless receiving module sends a connection signal in a signaling channel in a broadcasting mode;
when the sound source decibel value received by any microphone is larger than a preset decibel threshold, waking up a correspondingly connected 2.4G wireless communication audio transmitter, scanning a signaling channel by the waked 2.4G wireless communication audio transmitter, and establishing connection with a 2.4G wireless receiving module through a handshake protocol when scanning a connection signal broadcasted by the 2.4G wireless receiving module, so that the sound source received by the microphone is transmitted to the 2.4G wireless receiving module of a sound recording sound card based on the audio channel after connection is established;
and the 2.4G wireless receiving module sends the received different sound sources to the audio processing module to be subjected to audio adjustment processing including audio mixing to obtain an audio signal, and the audio signal is sent to the electronic equipment based on an audio channel after the 2.4G wireless transmitting module is connected with the 2.4G wireless communication audio receiver.
Preferably, when the 2.4G wireless transmitting module establishes connection with the 2.4G wireless communication audio receiver through a handshake protocol, the current optimal signal frequency band is selected as a working channel according to the detection result by detecting the signal condition of the 2.4G full frequency band;
when any 2.4G wireless communication audio transmitter establishes connection with a 2.4G wireless receiving module through a handshake protocol, detecting the signal condition of the 2.4G full frequency band, and selecting the current optimal signal frequency band as a working channel according to the detection result;
the working channel comprises an audio channel and a signaling channel, and the current optimal signal frequency band is a channel with the minimum co-channel interference signal strength.
Preferably, when the control module in the starting state detects that the duration of disconnection between the 2.4G wireless transmitting module and the 2.4G wireless communication audio receiver is greater than a preset time threshold, the control module controls the 2.4G wireless transmitting module, the audio processing module and the 2.4G wireless receiving module to enter a dormant state, and then the control module enters the dormant state; the 2.4G wireless transmitting module starts a timer interrupt when entering a dormant state, and wakes up autonomously when the timer interrupt is finished;
and when any microphone detects that the duration of disconnection of the correspondingly connected 2.4G wireless communication audio transmitter and the 2.4G wireless receiving module is greater than a second preset time threshold, controlling the 2.4G wireless communication audio transmitter to enter a dormant state.
Preferably, each 2.4G wireless communication audio transmitter is connected with the microphone through a USB interface; the 2.4G wireless communication audio receiver is connected with the electronic equipment through a USB interface.
Preferably, the audio processing module adopts a DSP processing chip, and the audio adjusting processing also comprises noise reduction and tone adjusting processing; the preset decibel threshold is 40-70 dB.
Another embodiment of the present invention provides a drum set tuning and transmission method based on 2.4G wireless digital audio technology, which is applicable to a drum set tuning and transmission system based on 2.4G wireless digital audio technology, wherein the system includes a plurality of 2.4G wireless communication audio transmitters, a recording sound card and a 2.4G wireless communication audio receiver; the recording sound card comprises a 2.4G wireless receiving module, an audio processing module and a 2.4G wireless transmitting module which are sequentially connected; each 2.4G wireless communication audio transmitter is correspondingly connected with a microphone, and a plurality of microphones are respectively arranged at different positions to obtain sound sources sent by the drum set and singers; the 2.4G wireless communication audio receiver is connected with the electronic equipment; each 2.4G wireless communication audio transmitter is connected with the 2.4G wireless receiving module, and the 2.4G wireless transmitting module is connected with the 2.4G wireless communication audio receiver based on an audio channel and a signaling channel; the sound recording sound card further comprises a control module which is respectively connected with the 2.4G wireless receiving module, the audio processing module and the 2.4G wireless transmitting module; the drum kit tuning and transmission method based on the 2.4G wireless digital audio technology comprises the following steps:
s1, scanning a signaling channel after the 2.4G wireless transmitting module wakes up autonomously, establishing connection with the 2.4G wireless communication audio receiver through a handshake protocol when scanning a connection signal broadcast by the 2.4G wireless communication audio receiver, and sending a wake-up instruction to the control module in a dormant state;
s2, the control module receiving the wake-up instruction enters a starting state from a dormant state, generates an audio processing module wake-up instruction and a 2.4G wireless receiving module wake-up instruction after entering the starting state, and correspondingly sends the audio processing module and the 2.4G wireless receiving module in the dormant state, so that the audio processing module and the 2.4G wireless receiving module are awakened, and the awakened 2.4G wireless receiving module sends a connection signal in a signaling channel in a broadcasting mode;
s3, when the sound source decibel value received by any microphone is larger than a preset decibel threshold value, waking up a correspondingly connected 2.4G wireless communication audio transmitter, scanning a signaling channel by the waked 2.4G wireless communication audio transmitter, and establishing connection with the 2.4G wireless receiving module through a handshake protocol when a connection signal broadcasted by the 2.4G wireless receiving module is scanned, so that a sound source received by the microphone is transmitted to the 2.4G wireless receiving module of the sound recording sound card based on the audio channel after connection is established;
and S4, the 2.4G wireless receiving module sends the received different sound sources to the audio processing module to obtain an audio signal after audio adjustment processing including audio mixing, and the audio signal is sent to the electronic equipment based on an audio channel after the 2.4G wireless transmitting module is connected with the 2.4G wireless communication audio receiver.
Preferably, when the 2.4G wireless transmitting module establishes connection with the 2.4G wireless communication audio receiver through a handshake protocol, the current optimal signal frequency band is selected as a working channel according to the detection result by detecting the signal condition of the 2.4G full frequency band;
when any 2.4G wireless communication audio transmitter establishes connection with a 2.4G wireless receiving module through a handshake protocol, detecting the signal condition of the 2.4G full frequency band, and selecting the current optimal signal frequency band as a working channel according to the detection result;
the working channel comprises an audio channel and a signaling channel, and the current optimal signal frequency band is a channel with the minimum co-channel interference signal strength.
Preferably, when the control module in the starting state detects that the duration of disconnection between the 2.4G wireless transmitting module and the 2.4G wireless communication audio receiver is greater than a preset time threshold, the control module controls the 2.4G wireless transmitting module, the audio processing module and the 2.4G wireless receiving module to enter a dormant state, and then the control module enters the dormant state; the 2.4G wireless transmitting module starts a timer interrupt when entering a dormant state, and wakes up autonomously when the timer interrupt is finished;
and when any microphone detects that the duration of disconnection of the correspondingly connected 2.4G wireless communication audio transmitter and the 2.4G wireless receiving module is greater than a second preset time threshold, controlling the 2.4G wireless communication audio transmitter to enter a dormant state.
Preferably, each 2.4G wireless communication audio transmitter is connected with the microphone through a USB interface; the 2.4G wireless communication audio receiver is connected with the electronic equipment through a USB interface.
Preferably, the audio processing module adopts a DSP processing chip, and the audio adjusting processing also comprises noise reduction and tone adjusting processing; the preset decibel threshold is 40-70 dB.
Compared with the prior art, the drum kit tuning and transmission system and method based on the 2.4G wireless digital audio technology provided by the embodiment of the invention have the following technical effects:
(1) The audio transmission between the devices is realized through the 2.4G wireless communication module, the limitation of the movable range of signal line connection is avoided, and the use is more flexible.
(2) The sound sources of the drum set and singers are transmitted to the recording sound card through the 2.4G wireless communication audio transmitter to carry out tone adjustment processing, signals synthesized by the recording sound card are transmitted to other electronic equipment through the 2.4G wireless communication audio receiver, the system is not limited by the connection of signal wires in the traditional mode, the use is more convenient, and the system comprises small equipment size and small occupied position.
(3) The sound source is subjected to tone adjustment processing by introducing a recording sound card, the sound source has an audio effect processing function, the waveform of original sound can be changed, the sound effect is modified by a series of measures such as modulating and delaying the phase of sound waves, enhancing the harmonic waves of the sound waves and the like, and a performer can easily sing wonderful sound.
(4) The 2.4G wireless communication audio transmitter, the recording sound card and the 2.4G wireless communication audio receiver are provided with the built-in high-capacity rechargeable lithium battery, and a power adapter is not needed to be connected in addition in the work, so that the use is more convenient.
(5) Through reasonable automatic dormancy and wake-up strategy, realize that wake-up signal is sent voluntarily through electronic equipment just wake up its work of being connected with the sound recording sound card, and the microphone just wake up its work of being connected with the sound recording sound card when receiving sound source decibel value is greater than predetermineeing the decibel threshold value, and main equipment (including 2.4G wireless communication audio transmitter and sound recording sound card) can get into dormancy state when disconnect time reaches predetermineeing time threshold value to can effectively save battery power.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a drum set tuning and transmission system based on a 2.4G wireless digital audio technology according to an embodiment of the present invention.
Fig. 2 is a block diagram of a drum set tuning and transmission system based on a 2.4G wireless digital audio technology according to an embodiment of the present invention.
Fig. 3 is a flowchart of a method for tuning and transmitting a drum set based on 2.4G wireless digital audio technology according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may communicate with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1, an embodiment of the present invention provides a drum set tuning and transmission system based on 2.4G wireless digital audio technology, which includes a plurality of 2.4G wireless communication audio transmitters 10, a recording sound card 20 and a 2.4G wireless communication audio receiver 30.
Each 2.4G wireless communication audio transmitter 10 is correspondingly connected with one microphone 11, and a plurality of microphones 11 are respectively arranged at different positions to obtain sound sources sent by a drum set and singers. Specifically, each of the 2.4G wireless communication audio transmitters 10 is connected to the microphone 11 through a USB interface 12. The 2.4G wireless communication audio receiver 30 is correspondingly connected with the electronic device 31. Specifically, the 2.4G wireless communication audio receiver 30 is connected to the electronic device 31 through a USB interface 32. It will be appreciated that in the present embodiment, the electronic device 31 is an electronic device that may be used to play audio signals, such as a computer, a notebook, a mobile phone, or an audio power amplifier, and is not limited herein. Each of the 2.4G wireless communication audio transmitter 10, the recording sound card 20 and the 2.4G wireless communication audio receiver 30 is provided with a built-in high-capacity rechargeable lithium battery, and a power adapter is not required to be connected in addition in the working process, so that the use is more convenient.
With reference to fig. 1 and 2, further, the recording sound card 20 includes a 2.4G wireless receiving module 21, an audio processing module 22 and a 2.4G wireless transmitting module 23 which are sequentially connected, and in addition, the recording sound card 20 further includes a control module 24 which is respectively connected with the 2.4G wireless receiving module 21, the audio processing module 22 and the 2.4G wireless transmitting module 23. Wherein each of the 2.4G wireless communication audio transmitters 10 and the 2.4G wireless receiving modules 24, and the 2.4G wireless transmitting modules 23 and the 2.4G wireless communication audio receivers 30 are connected based on audio channels and signaling channels.
Specifically, when the 2.4G wireless transmitting module 23 wakes up autonomously, it scans a signaling channel, and when it scans a connection signal broadcasted by the 2.4G wireless communication audio receiver 30, it establishes a connection with the 2.4G wireless communication audio receiver through a handshake protocol, and sends a wake-up instruction to the control module 24 in a sleep state.
The control module 24 receiving the wake-up instruction enters the start-up state from the sleep state, generates an audio processing module wake-up instruction and a 2.4G wireless receiving module wake-up instruction after entering the start-up state, and correspondingly sends the audio processing module 22 and the 2.4G wireless receiving module 21 in the sleep state, so that the audio processing module 22 and the 2.4G wireless receiving module 21 are awakened, and the awakened 2.4G wireless receiving module 21 sends a connection signal in a signaling channel in a broadcasting mode.
When the db value of the sound source received by any microphone 11 is greater than the preset db threshold, the correspondingly connected 2.4G wireless communication audio transmitter 10 is awakened, the awakened 2.4G wireless communication audio transmitter 10 scans a signaling channel, and establishes connection with the 2.4G wireless receiving module 21 through a handshake protocol when the connection signal broadcasted by the 2.4G wireless receiving module 21 is scanned, so that the sound source received by the microphone 11 is transmitted to the 2.4G wireless receiving module 21 of the sound recording sound card based on the audio channel after connection is established. Wherein, the preset decibel threshold value can be set to 40-70 dB.
The 2.4G wireless receiving module 21 sends the received different sound sources to the audio processing module 22 to perform audio adjustment processing including audio mixing to obtain an audio signal, and the audio signal is sent to the electronic device 31 based on an audio channel after the 2.4G wireless transmitting module 23 and the 2.4G wireless communication audio receiver 30 are connected. Further, the audio processing module 22 adopts a DSP processing chip, and the audio adjustment processing further includes noise reduction, tone adjustment, and the like.
It will be appreciated that when the control module 24 in the activated state detects that the duration of disconnection of the 2.4G wireless transmitting module 23 from the 2.4G wireless communication audio receiver 30 is greater than the first preset time threshold, the control module 24 controls the 2.4G wireless transmitting module 23, the audio processing module 22 and the 2.4G wireless receiving module 21 to enter the sleep state, and then the control module 24 also enters the sleep state. And when the 2.4G wireless transmitting module 23 enters a dormant state, starting a timer to interrupt, and when the timer interrupt timing is finished, the 2.4G wireless transmitting module 23 wakes up autonomously.
It will be appreciated that when any microphone 11 detects that the duration of disconnection of the correspondingly connected 2.4G wireless communication audio transmitter 10 from the 2.4G wireless receiving module 21 is greater than the second preset time threshold, the 2.4G wireless communication audio transmitter 21 is controlled to enter the sleep state.
The first preset time threshold and the second preset time threshold may be set according to implementation requirements, for example, 30s, which is not specifically limited herein.
Further, in the present embodiment:
when the 2.4G wireless transmitting module 23 establishes connection with the 2.4G wireless communication audio receiver 30 through a handshake protocol, detecting the signal condition of the 2.4G full frequency band, and selecting the current optimal signal frequency band as a working channel according to the detection result;
when any 2.4G wireless communication audio transmitter 10 establishes connection with the 2.4G wireless receiving module 21 through a handshake protocol, detecting the signal condition of the 2.4G full frequency band, and selecting the current optimal signal frequency band as a working channel according to the detection result;
the working channel comprises an audio channel and a signaling channel, and the current optimal signal frequency band is a channel with the minimum co-channel interference signal strength.
Therefore, through the scheme in real time, the current optimal signal frequency band can be selected as the working channel by detecting the signal condition of the 2.4G full frequency band, so that the efficient transmission of signals can be ensured.
Referring to fig. 3, an embodiment of the present invention discloses a drum set tuning and transmission method based on 2.4G wireless digital audio technology, which is suitable for a drum set tuning and transmission system based on 2.4G wireless digital audio technology, as shown in fig. 1 and 2, the system includes a plurality of 2.4G wireless communication audio transmitters 10, recording sound cards 20 and 2.4G wireless communication audio receivers 30; the recording sound card 20 comprises a 2.4G wireless receiving module 21, an audio processing module 22 and a 2.4G wireless transmitting module 23 which are connected in sequence; each 2.4G wireless communication audio transmitter 10 is correspondingly connected with a microphone 11, and a plurality of microphones 11 are respectively arranged at different positions to obtain sound sources sent by a drum set and singers; the 2.4G wireless communication audio receiver 30 is correspondingly connected with the electronic device 31; an audio channel and signaling channel based connection between each of the 2.4G wireless communication audio transmitters 10 and the 2.4G wireless receiving modules 24, and between the 2.4G wireless transmitting modules 23 and the 2.4G wireless communication audio receivers 30; the recording sound card 20 further comprises a control module 24 respectively connected with the 2.4G wireless receiving module 21, the audio processing module 22 and the 2.4G wireless transmitting module 23; the drum kit tuning and transmission method based on the 2.4G wireless digital audio technology comprises the following steps:
s101, when the 2.4G wireless transmitting module 23 wakes up autonomously, scanning a signaling channel, establishing connection with the 2.4G wireless communication audio receiver 30 through a handshake protocol when scanning a connection signal broadcast by the 2.4G wireless communication audio receiver 30, and sending a wake-up instruction to the control module 24 in a dormant state;
s102, a control module 24 receiving the wake-up instruction enters a start-up state from a dormant state, generates an audio processing module wake-up instruction and a 2.4G wireless receiving module wake-up instruction after entering the start-up state and correspondingly sends the audio processing module 22 and the 2.4G wireless receiving module 21 in the dormant state, so that the audio processing module 22 and the 2.4G wireless receiving module 21 are awakened, and the awakened 2.4G wireless receiving module 21 sends a connection signal in a signaling channel in a broadcasting mode;
s103, when the decibel value of the sound source received by any microphone 11 is larger than a preset decibel threshold value, waking up the correspondingly connected 2.4G wireless communication audio transmitter 10, scanning a signaling channel by the woken 2.4G wireless communication audio transmitter 10, and establishing connection with the 2.4G wireless receiving module 21 through a handshake protocol when the connection signal broadcasted by the 2.4G wireless receiving module 21 is scanned, so that the sound source received by the microphone 11 is transmitted to the 2.4G wireless receiving module 21 of the sound recording sound card based on the audio channel after connection is established; wherein, the preset decibel threshold value can be set to 40-70 dB.
And S104, the 2.4G wireless receiving module 21 sends the received different sound sources to the audio processing module 22 to obtain an audio signal after audio adjustment processing including audio mixing, and the audio signal is sent to the electronic equipment 31 based on an audio channel after the 2.4G wireless transmitting module 23 and the 2.4G wireless communication audio receiver 30 are connected.
It will be appreciated that in the present embodiment, the electronic device 31 is an electronic device that may be used to play audio signals, such as a computer, a notebook, a mobile phone, or an audio power amplifier, and is not limited herein. Each of the 2.4G wireless communication audio transmitter 10, the recording sound card 20 and the 2.4G wireless communication audio receiver 30 is provided with a built-in high-capacity rechargeable lithium battery, and a power adapter is not required to be connected in addition in the working process, so that the use is more convenient.
Further, the audio processing module 22 adopts a DSP processing chip, and the audio adjustment processing further includes noise reduction, tone adjustment, and the like. Specifically, each of the 2.4G wireless communication audio transmitters 10 is connected to the microphone 11 through a USB interface 12. The 2.4G wireless communication audio receiver 30 is connected to the electronic device 31 through a USB interface 32.
It will be appreciated that when the control module 24 in the activated state detects that the duration of disconnection of the 2.4G wireless transmitting module 23 from the 2.4G wireless communication audio receiver 30 is greater than the first preset time threshold, the control module 24 controls the 2.4G wireless transmitting module 23, the audio processing module 22 and the 2.4G wireless receiving module 21 to enter the sleep state, and then the control module 24 also enters the sleep state. And when the 2.4G wireless transmitting module 23 enters a dormant state, starting a timer to interrupt, and when the timer interrupt timing is finished, the 2.4G wireless transmitting module 23 wakes up autonomously.
It will be appreciated that when any microphone 11 detects that the duration of disconnection of the correspondingly connected 2.4G wireless communication audio transmitter 10 from the 2.4G wireless receiving module 21 is greater than the second preset time threshold, the 2.4G wireless communication audio transmitter 21 is controlled to enter the sleep state.
The first preset time threshold and the second preset time threshold may be set according to implementation requirements, for example, 30s, which is not specifically limited herein.
Further, in the present embodiment:
when the 2.4G wireless transmitting module 23 establishes connection with the 2.4G wireless communication audio receiver 30 through a handshake protocol, detecting the signal condition of the 2.4G full frequency band, and selecting the current optimal signal frequency band as a working channel according to the detection result;
when any 2.4G wireless communication audio transmitter 10 establishes connection with the 2.4G wireless receiving module 21 through a handshake protocol, detecting the signal condition of the 2.4G full frequency band, and selecting the current optimal signal frequency band as a working channel according to the detection result;
the working channel comprises an audio channel and a signaling channel, and the current optimal signal frequency band is a channel with the minimum co-channel interference signal strength.
Therefore, through the scheme in real time, the current optimal signal frequency band can be selected as the working channel by detecting the signal condition of the 2.4G full frequency band, so that the efficient transmission of signals can be ensured.
In summary, by implementing the drum set tuning and transmission system and method based on the 2.4G wireless digital audio technology, the following technical effects can be brought: the audio transmission between the devices is realized through the 2.4G wireless communication module, the limitation of the movable range of signal line connection is avoided, and the use is more flexible; the sound sources of the drum set and singers are transmitted to the recording sound card through the 2.4G wireless communication audio transmitter to carry out tone adjustment processing, signals synthesized by the recording sound card are transmitted to other electronic equipment through the 2.4G wireless communication audio receiver, the traditional mode is not limited by connection of signal wires, the use is more convenient, and the system comprises small equipment volume and small occupied position; the sound source is subjected to tone adjustment processing by introducing a recording sound card, the sound source has an audio effect processing function, the waveform of original sound can be changed, the sound effect is modified by a series of measures such as modulating and delaying the phase of sound waves, enhancing the harmonic waves of the sound waves and the like, and a performer can easily sing wonderful sound. The 2.4G wireless communication audio transmitter, the recording sound card and the 2.4G wireless communication audio receiver are provided with the built-in high-capacity rechargeable lithium battery, and a power adapter is not needed to be connected in the work, so that the use is more convenient; through reasonable automatic dormancy and wake-up strategy, realize that wake-up signal is sent voluntarily through electronic equipment just wake up its work of being connected with the sound recording sound card, and the microphone just wake up its work of being connected with the sound recording sound card when receiving sound source decibel value is greater than predetermineeing the decibel threshold value, and main equipment (including 2.4G wireless communication audio transmitter and sound recording sound card) can get into dormancy state when disconnect time reaches predetermineeing time threshold value to can effectively save battery power.
The foregoing disclosure is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, as it is understood by those skilled in the art that all or part of the above-described embodiments may be practiced without resorting to the equivalent thereof, which is intended to fall within the scope of the invention as defined by the appended claims.
Claims (10)
1. The drum set tuning and transmission system based on the 2.4G wireless digital audio technology is characterized by comprising a plurality of 2.4G wireless communication audio transmitters, recording sound cards and 2.4G wireless communication audio receivers; the recording sound card comprises a 2.4G wireless receiving module, an audio processing module and a 2.4G wireless transmitting module which are sequentially connected; each 2.4G wireless communication audio transmitter is correspondingly connected with a microphone, and a plurality of microphones are respectively arranged at different positions to obtain sound sources sent by the drum set and singers; the 2.4G wireless communication audio receiver is connected with the electronic equipment; each 2.4G wireless communication audio transmitter is connected with the 2.4G wireless receiving module, and the 2.4G wireless transmitting module is connected with the 2.4G wireless communication audio receiver based on an audio channel and a signaling channel; the sound recording sound card further comprises a control module which is respectively connected with the 2.4G wireless receiving module, the audio processing module and the 2.4G wireless transmitting module;
when the 2.4G wireless transmitting module wakes up autonomously, scanning a signaling channel, establishing connection with the 2.4G wireless communication audio receiver through a handshake protocol when scanning a connection signal broadcast by the 2.4G wireless communication audio receiver, and sending a wake-up instruction to the control module in a dormant state;
the control module receiving the wake-up instruction enters a starting state from a dormant state, generates an audio processing module wake-up instruction and a 2.4G wireless receiving module wake-up instruction after entering the starting state, and correspondingly sends the audio processing module and the 2.4G wireless receiving module in the dormant state, so that the audio processing module and the 2.4G wireless receiving module are awakened, and the awakened 2.4G wireless receiving module sends a connection signal in a signaling channel in a broadcasting mode;
when the sound source decibel value received by any microphone is larger than a preset decibel threshold, waking up a correspondingly connected 2.4G wireless communication audio transmitter, scanning a signaling channel by the waked 2.4G wireless communication audio transmitter, and establishing connection with a 2.4G wireless receiving module through a handshake protocol when scanning a connection signal broadcasted by the 2.4G wireless receiving module, so that the sound source received by the microphone is transmitted to the 2.4G wireless receiving module of a sound recording sound card based on the audio channel after connection is established;
and the 2.4G wireless receiving module sends the received different sound sources to the audio processing module to be subjected to audio adjustment processing including audio mixing to obtain an audio signal, and the audio signal is sent to the electronic equipment based on an audio channel after the 2.4G wireless transmitting module is connected with the 2.4G wireless communication audio receiver.
2. The drum set tuning and transmission system based on 2.4G wireless digital audio technology of claim 1, wherein:
when the 2.4G wireless transmitting module establishes connection with the 2.4G wireless communication audio receiver through a handshake protocol, detecting the signal condition of the 2.4G full frequency band, and selecting the current optimal signal frequency band as a working channel according to the detection result;
when any 2.4G wireless communication audio transmitter establishes connection with a 2.4G wireless receiving module through a handshake protocol, detecting the signal condition of the 2.4G full frequency band, and selecting the current optimal signal frequency band as a working channel according to the detection result;
the working channel comprises an audio channel and a signaling channel, and the current optimal signal frequency band is a channel with the minimum co-channel interference signal strength.
3. The drum set tuning and transmission system based on 2.4G wireless digital audio technology of claim 1, wherein:
when the control module in the starting state detects that the duration of disconnection between the 2.4G wireless transmitting module and the 2.4G wireless communication audio receiver is longer than a first preset time threshold, the control module controls the 2.4G wireless transmitting module, the audio processing module and the 2.4G wireless receiving module to enter a dormant state, and then the control module enters the dormant state; the 2.4G wireless transmitting module starts a timer interrupt when entering a dormant state, and wakes up autonomously when the timer interrupt is finished;
and when any microphone detects that the duration of disconnection of the correspondingly connected 2.4G wireless communication audio transmitter and the 2.4G wireless receiving module is greater than a second preset time threshold, controlling the 2.4G wireless communication audio transmitter to enter a dormant state.
4. The drum set tuning and transmission system based on 2.4G wireless digital audio technology of claim 1, wherein: each 2.4G wireless communication audio transmitter is connected with the microphone through a USB interface; the 2.4G wireless communication audio receiver is connected with the electronic equipment through a USB interface.
5. The drum set tuning and transmission system based on 2.4G wireless digital audio technology of claim 1, wherein: the audio processing module adopts a DSP processing chip, and the audio adjusting processing also comprises noise reduction and tone adjusting processing; the preset decibel threshold is 40-70 dB.
6. The drum set tuning and transmission method based on the 2.4G wireless digital audio technology is characterized by being applicable to a drum set tuning and transmission system based on the 2.4G wireless digital audio technology, wherein the system comprises a plurality of 2.4G wireless communication audio transmitters, recording sound cards and 2.4G wireless communication audio receivers; the recording sound card comprises a 2.4G wireless receiving module, an audio processing module and a 2.4G wireless transmitting module which are sequentially connected; each 2.4G wireless communication audio transmitter is correspondingly connected with a microphone, and a plurality of microphones are respectively arranged at different positions to obtain sound sources sent by the drum set and singers; the 2.4G wireless communication audio receiver is connected with the electronic equipment; each 2.4G wireless communication audio transmitter is connected with the 2.4G wireless receiving module, and the 2.4G wireless transmitting module is connected with the 2.4G wireless communication audio receiver based on an audio channel and a signaling channel; the recording sound card also comprises a control module which is respectively connected with the 2.4G wireless receiving module, the audio processing module and the 2.4G wireless transmitting module; the drum kit tuning and transmission method based on the 2.4G wireless digital audio technology comprises the following steps:
s1, scanning a signaling channel after the 2.4G wireless transmitting module wakes up autonomously, establishing connection with the 2.4G wireless communication audio receiver through a handshake protocol when scanning a connection signal broadcast by the 2.4G wireless communication audio receiver, and sending a wake-up instruction to the control module in a dormant state;
s2, the control module receiving the wake-up instruction enters a starting state from a dormant state, generates an audio processing module wake-up instruction and a 2.4G wireless receiving module wake-up instruction after entering the starting state, and correspondingly sends the audio processing module and the 2.4G wireless receiving module in the dormant state, so that the audio processing module and the 2.4G wireless receiving module are awakened, and the awakened 2.4G wireless receiving module sends a connection signal in a signaling channel in a broadcasting mode;
s3, when the sound source decibel value received by any microphone is larger than a preset decibel threshold value, waking up a correspondingly connected 2.4G wireless communication audio transmitter, scanning a signaling channel by the waked 2.4G wireless communication audio transmitter, and establishing connection with the 2.4G wireless receiving module through a handshake protocol when a connection signal broadcasted by the 2.4G wireless receiving module is scanned, so that a sound source received by the microphone is transmitted to the 2.4G wireless receiving module of the sound recording sound card based on the audio channel after connection is established;
and S4, the 2.4G wireless receiving module sends the received different sound sources to the audio processing module to obtain an audio signal after audio adjustment processing including audio mixing, and the audio signal is sent to the electronic equipment based on an audio channel after the 2.4G wireless transmitting module is connected with the 2.4G wireless communication audio receiver.
7. The drum set tuning and transmission method based on 2.4G wireless digital audio technology of claim 6, wherein:
when the 2.4G wireless transmitting module establishes connection with the 2.4G wireless communication audio receiver through a handshake protocol, detecting the signal condition of the 2.4G full frequency band, and selecting the current optimal signal frequency band as a working channel according to the detection result;
when any 2.4G wireless communication audio transmitter establishes connection with a 2.4G wireless receiving module through a handshake protocol, detecting the signal condition of the 2.4G full frequency band, and selecting the current optimal signal frequency band as a working channel according to the detection result;
the working channel comprises an audio channel and a signaling channel, and the current optimal signal frequency band is a channel with the minimum co-channel interference signal strength.
8. The drum set tuning and transmission method based on 2.4G wireless digital audio technology of claim 6, wherein:
when the control module in the starting state detects that the duration of disconnection between the 2.4G wireless transmitting module and the 2.4G wireless communication audio receiver is greater than a preset time threshold, the control module controls the 2.4G wireless transmitting module, the audio processing module and the 2.4G wireless receiving module to enter a dormant state, and then the control module enters the dormant state; the 2.4G wireless transmitting module starts a timer interrupt when entering a dormant state, and wakes up autonomously when the timer interrupt is finished;
and when any microphone detects that the duration of disconnection of the correspondingly connected 2.4G wireless communication audio transmitter and the 2.4G wireless receiving module is greater than a second preset time threshold, controlling the 2.4G wireless communication audio transmitter to enter a dormant state.
9. The drum set tuning and transmission method based on 2.4G wireless digital audio technology of claim 6, wherein: each 2.4G wireless communication audio transmitter is connected with the microphone through a USB interface; the 2.4G wireless communication audio receiver is connected with the electronic equipment through a USB interface.
10. The drum set tuning and transmission method based on 2.4G wireless digital audio technology of claim 6, wherein: the audio processing module adopts a DSP processing chip, and the audio adjusting processing also comprises noise reduction and tone adjusting processing; the preset decibel threshold is 40-70 dB.
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