CN110931029A - Audio interference prevention method - Google Patents
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- CN110931029A CN110931029A CN201911116633.8A CN201911116633A CN110931029A CN 110931029 A CN110931029 A CN 110931029A CN 201911116633 A CN201911116633 A CN 201911116633A CN 110931029 A CN110931029 A CN 110931029A
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- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
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Abstract
The invention discloses an audio anti-interference method, which solves the problems of noise generation and influence on the playing effect in the audio playing process, detects the reason of the interference effect of equipment on audio in the audio output process by arranging a noise detection module, adjusts the equipment by arranging an equipment adjustment module, pertinently reduces the interference of the reason of the equipment on the audio, detects the interference of an external environment, the circuit of the external equipment and an electromagnetic field on the audio in the audio output process by arranging an environment detection module, and adjusts the external factors by the environment adjustment module to reduce the interference on the audio so as to improve the audio output quality. The device comprises an audio input module, a noise detection module, an environment detection module, a central control module, an equipment adjustment module, an environment adjustment module, an audio processor, audio output equipment and an audio amplifier, wherein the audio input module is connected with the noise detection module.
Description
Technical Field
The invention relates to the technical field of audio processing, in particular to an audio anti-interference method.
Background
Audio is a term of art and the term audio has been used to generally describe devices within the audio range and related to sound and their effects. All sounds that a human being can hear are referred to as audio, which may include noise, etc. After the sound is recorded, either the speech, singing, or musical instruments can be processed through digital music software or made into a CD, where all the sound is unchanged since a CD is originally a type of audio file. And audio is simply sound stored in the computer. If a computer is provided with a corresponding audio card, namely a sound card which is often called, all sounds can be recorded, and acoustic characteristics of the sounds, such as sound level and the like, can be stored in a hard disk file of the computer.
In the process of recording and playing audio, due to the influence of equipment and external factors, audio interference is a common problem, the audio interference causes hoarseness, breakage and sharp ears, and affects the definition, softness and brightness of the sound, so that the audio effect is poor, the sense organ in the listening process is affected, even white noise is generated in the audio output process, a certain degree of damage is generated to the body, and the audio interference resistance is particularly important.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an audio anti-interference method, which solves the problems of noise generation and influence on the playing effect in the audio playing process and ensures that the audio quality is better.
In order to achieve the purpose, the invention is realized by the following technical scheme: an audio anti-interference system comprises an audio input module, a noise detection module, an environment detection module central control module, an equipment adjustment module, an environment adjustment module, an audio processor, an audio output device and an audio amplifier, wherein the audio input module is connected with the noise detection module, the noise detection module is connected with the central control module, the audio input module is connected with the environment detection module, the environment detection module is connected with the central control module, the central control module is connected with the equipment adjustment module, the central control module is connected with the environment adjustment module, the central control module is connected with the audio processor, the audio processor is connected with the audio output device, the audio output device is connected with the audio amplifier, the noise detection module comprises a noise detection module and an equipment detection module on the background, the background noise detection module is connected with the equipment detection module.
Preferably, the environment detection module includes an electromagnetic interference module and an equipment interference module, and the electromagnetic interference module is connected with the equipment interference module.
Preferably, the equipment adjusting module comprises a balance transformer, a level adjusting module and a noise reducing module, wherein the balance transformer is connected with the level adjusting module, and the level adjusting module is connected with the noise reducing module.
Preferably, the environment adjusting module comprises a power filter, a cooling module and a position adjusting module, the power filter is connected with the cooling module, and the cooling module is connected with the position adjusting module.
Preferably, the equipment detection module comprises a power supply detection module, a level detection module, an impedance detection module, a sensitivity detection module, an equalizer detection module and a signal detection module, wherein the power supply detection module is connected with the level detection module, the level detection module is connected with the impedance detection module, and the sensitivity detection module is connected with the equalizer detection module.
An audio anti-interference method specifically comprises the following steps:
the method comprises the following steps: when the audio is subjected to anti-interference processing, the audio input module generates a corresponding instruction after receiving the audio information, and transmits the instruction to the noise detection module and the environment detection module.
Step two: the noise detection module starts to detect the reason of noise generated by the equipment after receiving the instruction, the background noise detection module detects whether the background noise occurs due to overlarge gain or in an automatic gain control mode after receiving the instruction, and the instruction is transmitted to the equipment detection module after the detection of the background noise detection module is finished.
Step three: after the equipment detection module receives the instruction, the power supply detection module starts to detect the power supply stability, after the power supply stability is detected, the power supply detection module transmits the instruction to the level detection module, after the level detection module receives the instruction, the relative ratio of the electric quantity in the detection circuit starts to be detected, after the detection is finished, the level detection module transmits the instruction to the impedance detection module, and after the impedance detection module receives the instruction, the impedance detection module starts to detect whether the impedance of the current equipment exceeds a valve threshold value or not.
Step four: after the equipment detection module receives the instruction, the sensitivity detection module detects whether the current equipment sensitivity is too high to cause audio distortion, and after the detection is finished, the sensitivity detection module transmits the instruction to the equalizer detection module to detect the frequency component electric signal amplification amount set by the current equalizer.
Step five: after the equipment detection module receives the instruction, the signal detection module detects the problems existing in the current audio signal transmission, and after the detection is finished, the equipment detection module transmits the detection result to the central control module.
Step six: the audio input module generates a corresponding instruction after receiving audio information, and transmits the instruction to the environment detection module, after the environment detection module receives the instruction, the electromagnetic interference module starts to detect the interference condition of the electromagnetism on the audio, the equipment interference module starts to detect the interference condition between the equipment, and after the detection is finished, the environment detection module transmits the result to the central control module.
Step seven: and the central control module generates a corresponding instruction according to the current result after receiving the result, and transmits the instruction to the equipment adjusting module and the environment adjusting module.
Step eight: after the device adjusting module receives the instruction, the balance transformer starts to regulate the voltage, the adjusting voltage inhibits the interference of negative sequence current to audio, after the adjustment is completed, the instruction is transmitted to the level adjusting module to start to stabilize the current level, a reasonable valve threshold value is set, the problem that the audio interference is caused by the fact that the level is unstable and the valve threshold value is too high is avoided, after the adjustment is completed, the instruction is transmitted to the noise reduction module, noise reduction software is utilized, noise reduction equipment is used, and the current audio interference is reduced.
Step nine: after the environment adjustment module receives the instruction, the power filter attenuates electromagnetic interference, frequency points of specific frequency in the power line or frequencies outside the frequency points are effectively filtered, a power signal of specific frequency is obtained, the influence of electromagnetic interference on audio frequency is avoided, after the electromagnetic interference attenuation is completed, the power filter transmits the instruction to the cooling module, the physical cooling is utilized, the resistance in the equipment is reduced, the generation of thermal noise is reduced, the background noise is reduced, after the cooling setting is completed, the cooling module transmits the instruction to the position adjustment module, after the position adjustment module receives the instruction, the current equipment position is adjusted, the interference between equipment is avoided, and the interference signal generated by circuit interleaving is generated, and the audio is interfered.
Step ten: after the adjustment is completed, the equipment adjustment module and the environment adjustment module transmit the adjustment result to the central control module, the central control module transmits audio information to the audio processor after receiving the adjustment result, the audio processor processes the audio after receiving the audio information, adjusts the sensitivity of the equalizer and the equipment, transmits the audio to the audio output equipment after the adjustment is completed, and transmits the information to the audio amplifier after the audio output equipment receives the audio information.
Advantageous effects
The invention provides an audio anti-interference method, which has the following beneficial effects: the audio anti-interference method detects the reason of the interference effect of the equipment on audio in the audio output process by setting the noise detection module, adjusts the equipment by setting the equipment adjustment module, pertinently reduces the interference of the self reason of the equipment on the audio, detects in the audio output process by setting the environment detection module, because the external environment, the circuit of the external equipment is staggered, the interference of an electromagnetic field on the audio is generated, and the external factors are adjusted by the environment adjustment module, the interference on the audio is reduced, and the audio output quality is improved.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a schematic diagram of the device detection module of FIG. 1 according to the present invention.
In the figure: 1. an audio input module; 2. a noise detection module; 3. an environment detection module; 4. a central control module; 5. an equipment adjusting module; 6. an environment adjustment module; 7. an audio processor; 8. an audio output device; 9. an audio amplifier; 21. a background noise detection module; 22. a device detection module; 31. an electromagnetic interference module; 32. a device interference module; 51. a balancing transformer; 52. a level adjustment module; 53. a noise reduction module; 61. a power supply filter; 62. a cooling module; 63. a position adjustment module; 221. a power supply detection module; 222. a level detection module; 223. an impedance detection module; 224. a sensitivity detection module; 225. an equalizer detection module; 226. and a signal detection module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: an audio anti-interference system comprises an audio input module 1, a noise detection module 2, an environment detection module 3, a central control module 4, an equipment adjustment module 5, an environment adjustment module 6, an audio processor 7, an audio output device 8 and an audio amplifier 9, wherein the audio input module 1 is connected with the noise detection module 2 to detect the reason of noise, the noise detection module 2 is connected with the central control module 4 to receive the detection result and output an adjustment instruction, the audio input module 1 is connected with the environment detection module 3 to detect the interference factor of the external environment to audio, the environment detection module 3 is connected with the central control module 4, the central control module 4 is connected with the equipment adjustment module 5 to adjust the equipment and reduce the interference factor of the equipment, the central control module 4 is connected with the environment adjustment module 6, and the central control module 4 is connected with the audio processor 7, the method comprises the steps of processing audio, adjusting the sensitivity of an equalizer and equipment, connecting an audio processor 7 with an audio output device 8 for outputting the audio, connecting the audio output device 8 with an audio amplifier 9 for amplifying the audio, detecting equipment influence factors by a noise floor detection module 21 and an equipment detection module 22 through a noise floor detection module 2, and connecting the noise floor detection module 21 with the equipment detection module 22.
The environment detection module 3 comprises an electromagnetic interference module 31 and an equipment interference module 32, the electromagnetic interference module 31 is connected with the equipment interference module 32 to detect the interference between the equipments, the equipment adjustment module 5 comprises a balance transformer 51, a level adjustment module 52 and a noise reduction module 53, the balance transformer 51 is connected with the level adjustment module 52 to stabilize the level, a reasonable valve threshold is set to avoid audio interference caused by unstable level and overhigh valve threshold, the level adjustment module 52 is connected with the noise reduction module 53 to reduce the current audio interference by using noise reduction software, the environment adjustment module 6 comprises a power filter 61, a cooling module 62 and a position adjustment module 63, the power filter 61 is connected with the cooling module 62, the power filter 61 attenuates the electromagnetic interference to effectively filter the frequency point of specific frequency in the power line or the frequency beyond the frequency point, the cooling module 62 utilizes physical cooling, reduces resistance in the device, reduces generation of thermal noise, reduces background noise, the cooling module 62 is connected with the position adjusting module 63, adjusts the device position, avoids interference between devices, generates interference with interference signals generated by circuit interleaving, and generates interference on audio, the device detecting module 22 comprises a power supply detecting module 221, a level detecting module 222, an impedance detecting module 223, a sensitivity detecting module 224, an equalizer detecting module 225 and a signal detecting module 226, the power supply detecting module 221 is connected with the level detecting module 222, detects a relative ratio of electric quantity in a circuit, the level detecting module 222 is connected with the impedance detecting module 223, detects impedance of the device, the sensitivity detecting module 224 is connected with the equalizer detecting module 225, and detects amplification of frequency component electric signals set by the equalizer.
An audio anti-interference method specifically comprises the following steps:
the method comprises the following steps: when the audio is subjected to anti-interference processing, the audio input module 1 generates a corresponding instruction after receiving the audio information, and transmits the instruction to the noise detection module 2 and the environment detection module 3.
Step two: the noise detection module 2 starts to detect the reason of the noise generated by the equipment after receiving the instruction, the background noise detection module 21 detects whether the background noise occurs due to overlarge gain or by adopting an automatic gain control mode after receiving the instruction, and the background noise detection module 21 transmits the instruction to the equipment detection module 22 after the detection is finished.
Step three: after the device detection module 22 receives the instruction, the power supply detection module 221 starts to detect the power supply stability, after the power supply stability is detected, the power supply detection module 221 transmits the instruction to the level detection module 222, after the level detection module 222 receives the instruction, the relative ratio of the electric quantity in the circuit starts to be detected, after the detection is completed, the level detection module 222 transmits the instruction to the impedance detection module 223, and after the impedance detection module 223 receives the instruction, the impedance detection module 223 starts to detect whether the impedance of the current device exceeds the valve threshold value.
Step four: after the device detection module 22 receives the instruction, the sensitivity detection module 224 detects whether the current device sensitivity is too high, which causes audio distortion, and after the detection is completed, the sensitivity detection module 224 transmits the instruction to the equalizer detection module 225 to detect the amount of frequency component electric signal amplification set by the current equalizer.
Step five: after the device detection module 22 receives the instruction, the signal detection module 226 detects a problem existing in the current audio signal transmission, and after the detection is completed, the device detection module 22 transmits the detection result to the central control module 4.
Step six: after receiving the audio information, the audio input module 1 generates a corresponding instruction and transmits the instruction to the environment detection module 3, after the environment detection module 3 receives the instruction, the electromagnetic interference module 31 starts to detect the interference condition of the electromagnetic wave to the audio, the device interference module 32 starts to detect the interference condition between devices, and after the detection is completed, the environment detection module 3 transmits the result to the central control module 4.
Step seven: and after receiving the result, the central control module 4 generates a corresponding instruction according to the current result, and transmits the instruction to the equipment adjusting module 5 and the environment adjusting module 6.
Step eight: after the device adjusting module 5 receives the instruction, the balancing transformer 51 starts to adjust the voltage, the adjustment voltage suppresses the interference of the negative sequence current to the audio, after the adjustment is completed, the instruction is transmitted to the level adjusting module 52 to start to stabilize the current level, a reasonable valve threshold value is set, the audio interference caused by the fact that the level is unstable and the valve threshold value is too high is avoided, after the adjustment is completed, the instruction is transmitted to the noise reduction module 53, noise reduction software is used, the noise reduction device is used, and the current audio interference is reduced.
Step nine: after the environment adjusting module 6 receives the instruction, the power filter 61 attenuates electromagnetic interference, frequency points of specific frequency in the power line or frequencies outside the frequency points are effectively filtered, a power signal of specific frequency is obtained, influence of electromagnetic interference on audio frequency is avoided, after the electromagnetic interference attenuation is completed, the power filter 61 transmits the instruction to the cooling module 62, physical cooling is utilized, resistance in equipment is reduced, generation of thermal noise is reduced, background noise is reduced, after cooling setting is completed, the cooling module 62 transmits the instruction to the position adjusting module 63, after the position adjusting module 63 receives the instruction, the current equipment position is adjusted, interference between equipment is avoided, and interference signals generated by circuit interleaving interfere with the audio frequency.
Step ten: after the adjustment is completed, the device adjustment module 5 and the environment adjustment module 6 transmit the adjustment result to the central control module 4, the central control module 4 transmits the audio information to the audio processor 7 after receiving the adjustment result, the audio processor 7 processes the audio after receiving the audio information, adjusts the sensitivity of the equalizer and the device, transmits the audio to the audio output device 8 after the adjustment is completed, and transmits the information to the audio amplifier 9 after the audio output device 8 receives the audio information.
The invention has the beneficial effects that: detect 2 in audio output in-process through setting up noise detection module, equipment produces the reason of interference effect to the audio frequency, and through setting up equipment adjustment module adjusting device 5, the pertinence reduces the interference that equipment self reason produced the audio frequency, detect at audio output in-process through setting up environment detection module 3, because external environment, the circuit of external equipment is crisscross, the interference that the electromagnetic field produced the audio frequency, and adjust external factors through environment adjustment module 6, reduce the interference to the audio frequency, it is more pertinent to have, more can improve audio output quality.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an audio frequency jam-proof system, includes audio input module (1), noise detection module (2), environment detection module (3) central control module (4), equipment adjustment module (5), environment adjustment module (6), audio processor (7), audio output equipment (8) and audio amplifier (9), its characterized in that: the audio input module (1) is connected with the noise detection module (2), the noise detection module (2) is connected with the central control module (4), the audio input module (1) is connected with the environment detection module (3), the environment detection module (3) is connected with the central control module (4), the central control module (4) is connected with the equipment adjusting module (5), the central control module (4) is connected with the environment adjusting module (6), the central control module (4) is connected with an audio processor (7), the audio processor (7) is connected with an audio output device (8), the audio output device (8) is connected with the audio amplifier (9), the noise detection module (2) comprises a noise floor detection module (21) and a device detection module (22), the noise floor detection module (21) is connected with the equipment detection module (22).
2. An audio tamper-proof system according to claim 1, wherein: the environment detection module (3) comprises an electromagnetic interference module (31) and an equipment interference module (32), and the electromagnetic interference module (31) is connected with the equipment interference module (32).
3. An audio tamper-proof system according to claim 1, wherein: the equipment adjusting module (5) comprises a balance transformer (51), a level adjusting module (52) and a noise reducing module (53), wherein the balance transformer (51) is connected with the level adjusting module (52), and the level adjusting module (52) is connected with the noise reducing module (53).
4. An audio tamper-proof system according to claim 1, wherein: the environment adjusting module (6) comprises a power filter (61), a cooling module (62) and a position adjusting module (63), the power filter (61) is connected with the cooling module (62), and the cooling module (62) is connected with the position adjusting module (63).
5. An audio tamper-proof system according to claim 1, wherein: the equipment detection module (22) comprises a power supply detection module (221), a level detection module (222), an impedance detection module (223), a sensitivity detection module (224), an equalizer detection module (225) and a signal detection module (226), wherein the power supply detection module (221) is connected with the level detection module (222), the level detection module (222) is connected with the impedance detection module (223), and the sensitivity detection module (224) is connected with the equalizer detection module (225).
6. An audio anti-interference method, comprising: the method comprises the following specific steps:
the method comprises the following steps: when the audio is subjected to anti-interference processing, the audio input module (1) generates a corresponding instruction after receiving the audio information, and transmits the instruction to the noise detection module (2) and the environment detection module (3);
step two: the noise detection module (2) starts to detect the reason of noise generated by the equipment after receiving the instruction, the background noise detection module (21) detects whether the background noise occurs due to overlarge gain or in an automatic gain control mode after receiving the instruction, and the instruction is transmitted to the equipment detection module (22) after the detection of the background noise detection module (21) is finished;
step three: after the device detection module (22) receives the instruction, the power supply detection module (221) starts to detect the power supply stability, after the power supply stability is detected, the power supply detection module (221) transmits the instruction to the level detection module (222), after the level detection module (222) receives the instruction, the level detection module (222) starts to detect the relative ratio of the electric quantity in the circuit, after the detection is finished, the level detection module (222) transmits the instruction to the impedance detection module (223), and after the impedance detection module (223) receives the instruction, the impedance detection module (223) starts to detect whether the impedance of the current device exceeds a valve threshold value;
step four: after the equipment detection module (22) receives the instruction, the sensitivity detection module (224) detects whether the current equipment sensitivity is too high to cause audio distortion, and after the detection is finished, the sensitivity detection module (224) transmits the instruction to the equalizer detection module (225) to detect the frequency component electric signal amplification amount set by the current equalizer;
step five: after the equipment detection module (22) receives the instruction, the signal detection module (226) detects the problem existing in the current audio signal transmission, and after the detection is finished, the equipment detection module (22) transmits the detection result to the central control module (4);
step six: after receiving the audio information, the audio input module (1) generates a corresponding instruction and transmits the instruction to the environment detection module (3), after the environment detection module (3) receives the instruction, the electromagnetic interference module (31) starts to detect the interference condition of the electromagnetism on the audio, the equipment interference module (32) starts to detect the interference condition between the equipment, and after the detection is finished, the environment detection module (3) transmits the result to the central control module (4);
step seven: the central control module (4) generates a corresponding instruction according to the current result after receiving the result, and transmits the instruction to the equipment adjusting module (5) and the environment adjusting module (6);
step eight: after the equipment adjusting module (5) receives the instruction, the balance transformer (51) starts to regulate the voltage, the regulated voltage inhibits the interference of negative sequence current to audio, after the regulation is finished, the instruction is transmitted to the level adjusting module (52) to start to stabilize the current level, a reasonable valve threshold value is set, the audio interference caused by unstable level and overhigh valve threshold value is avoided, after the regulation is finished, the instruction is transmitted to the noise reduction module, and noise reduction software is utilized to reduce the noise of equipment so as to reduce the current audio interference;
step nine: after the environment adjusting module (6) receives the instruction, the power filter (61) attenuates electromagnetic interference, and effectively filters a frequency point of a specific frequency in a power line or frequencies except the frequency point to obtain a power signal of the specific frequency, so that the influence of the electromagnetic interference on audio frequency is avoided, after the electromagnetic interference attenuation is completed, the power filter (61) transmits the instruction to the cooling module (62), the physical cooling is utilized to reduce the resistance in equipment, reduce the generation of thermal noise and reduce background noise, after the cooling setting is completed, the cooling module (62) transmits the instruction to the position adjusting module (63), and after the position adjusting module (63) receives the instruction, the current equipment position is adjusted, so that the interference between equipment is avoided, and the interference signal generated by circuit interleaving generates interference on the audio frequency;
step ten: after the adjustment is completed, the device adjustment module (5) and the environment adjustment module (6) transmit the adjustment result to the central control module (4), the central control module (4) transmits the audio information to the audio processor (7) after receiving the result, the audio processor (7) processes the audio after receiving the audio information, the equalizer and the device sensitivity are adjusted, after the adjustment is completed, the audio is transmitted to the audio output device (8), and after the audio output device (8) receives the audio information, the information is transmitted to the audio amplifier (9).
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| CN201911116633.8A CN110931029A (en) | 2019-11-15 | 2019-11-15 | Audio interference prevention method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113691918A (en) * | 2021-09-04 | 2021-11-23 | 武汉左点科技有限公司 | Anti-electromagnetic interference method and device for hearing aid |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113691918A (en) * | 2021-09-04 | 2021-11-23 | 武汉左点科技有限公司 | Anti-electromagnetic interference method and device for hearing aid |
| CN113691918B (en) * | 2021-09-04 | 2024-06-11 | 武汉左点科技有限公司 | Anti-electromagnetic interference method and device for hearing aid |
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