CN107948873B - Automatic switching system and method for audio signals - Google Patents
Automatic switching system and method for audio signals Download PDFInfo
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- CN107948873B CN107948873B CN201711205245.8A CN201711205245A CN107948873B CN 107948873 B CN107948873 B CN 107948873B CN 201711205245 A CN201711205245 A CN 201711205245A CN 107948873 B CN107948873 B CN 107948873B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
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Abstract
The invention discloses an automatic switching system of audio signals, which comprises audio acquisition equipment, an audio processing module, a wireless communication transmission module, audio playing equipment and an audio switching management module, wherein the audio acquisition equipment is used for acquiring audio signals; the audio processing module converts the analog quantity audio signal into a digital quantity audio signal and sends the digital quantity audio signal to the audio switching management module through the wireless communication transmission module; the audio switching management module comprises a state detection feedback unit, an analysis processing unit, a path switching unit, a digital-to-analog conversion unit and a filtering unit. According to the invention, the analog quantity audio signal is converted into the digital quantity audio signal through the audio processing module, so that the stability and accuracy of audio signal transmission are improved; the working state of the audio playing equipment is detected through the audio switching management module, the audio to be played is switched according to the state of the audio playing equipment, the quality of current audio playing is guaranteed, the loss of tone quality in the switching process is reduced, and the audio switching management module has the advantages of being simple in operation, easy to achieve and intelligent.
Description
Technical Field
The invention belongs to the technical field of audio signals, and relates to an automatic switching system and method of audio signals.
Background
An audio conference system is a conference system which can realize remote communication and support voice transmission. The audio conference system reduces unnecessary business trips, saves the operation cost of companies, and improves the communication efficiency. The audio conference has many benefits, and particularly has remarkable advantages and contributions in the aspects of energy conservation, emission reduction, low carbon and environmental protection.
At present, in the process of transmitting audio signals in the market, automatic switching can not be performed according to the state of audio playing equipment, once the audio playing equipment of the opposite side is in a working state, the transmitted audio signals cause aging, and simultaneously, the playing quality of the audio signals which are being played is influenced, so that the tone quality loss is caused.
Disclosure of Invention
The invention aims to provide an automatic switching system and method of audio signals, which solve the problems that the working state of the currently played audio playing equipment cannot be detected when the existing audio signals are played, so that the transmitted audio signals cannot be played and the audio signals are aged, and the tone quality effect of the currently played audio signals exists.
The purpose of the invention can be realized by the following technical scheme:
an automatic switching system of audio signals comprises an audio acquisition device, an audio processing module, a wireless communication transmission module, an audio playing device and an audio switching management module;
the audio processing module is used for converting the analog quantity audio signal sent by the audio acquisition equipment into a digital quantity audio signal and sending the digital quantity audio signal to the wireless communication transmission module;
the wireless communication transmission module is connected with the audio processing module and used for wirelessly transmitting the received digital quantity audio signals and sending the digital quantity audio signals to the audio switching management module;
the audio switching management module is used for detecting the state of the audio playing equipment, if the audio playing equipment is in a playing state, the path switching is carried out on the received digital quantity audio signal, and numbering waiting is carried out according to time; and if the audio playing equipment is in an unplayed state, converting the digital quantity audio signal into an analog quantity audio signal, and detecting and filtering the converted analog quantity audio signal.
Furthermore, the audio switching management module comprises a state detection feedback unit, an analysis processing unit, a path switching unit, a digital-to-analog conversion unit and a filtering unit;
the state detection feedback unit is used for detecting the working state of the audio playing equipment and feeding the detected working state back to the analysis processing unit;
the analysis processing unit is used for receiving the digital quantity audio signals sent by the wireless communication transmission module, sending a state detection instruction to the state detection feedback unit, receiving feedback working state information, if the analysis processing unit is in a working state, sending a path switching control instruction to the path switching unit, numbering the digital quantity audio signals to be played, and simultaneously detecting the state of the audio playing equipment according to a set detection frequency; if the digital-to-analog conversion unit is in a non-working state, the analysis processing unit sends a trigger instruction to the digital-to-analog conversion unit;
the path switching unit is used for switching the audio information to a waiting state by performing digital-to-analog conversion operation;
the digital-to-analog conversion unit is used for converting the received digital quantity audio signal into an analog quantity audio signal and sending the converted analog quantity audio signal to the filtering unit;
the filtering unit is used for detecting the frequency of the received analog quantity audio signal and removing the audio signal of which the frequency is higher than a set frequency range in the audio signal.
A method of automatic switching of audio signals, comprising the steps of:
s1, detecting a digital quantity audio signal sent by the wireless communication transmission module;
s2, starting the detection of the working state of the audio playing device;
s3, judging the working state of the audio playing device, if the audio playing device is in the non-playing state, switching to the step S4, otherwise, switching to the step S6;
s4, path switching is carried out on the digital quantity audio signals sent by the wireless communication transmission module, so that the switched digital quantity audio signals are in a waiting state and are numbered according to the time sequence;
s5, detecting the working state of the audio player at regular intervals, and if detecting that the audio playing equipment is in the playing state, sequentially switching the waiting digital quantity audio signals to the step S6 according to the serial number sequence;
s6, converting the digital audio signal into an analog audio signal;
s7, carrying out frequency detection on the converted analog quantity audio signal, and filtering out an audio frequency range exceeding a set range;
and S8, playing the audio signal.
The invention has the beneficial effects that:
according to the invention, the acquired analog quantity audio signal is converted into the digital quantity audio signal through the audio processing module, so that the wireless network transmission is facilitated, and the stability and accuracy of audio signal transmission are improved; can detect audio playback device's operating condition through audio frequency switching management module, treat the audio frequency of broadcast according to audio playback device's state and switch the processing, guarantee current audio playback's quality, and reduce the loss of switching in-process tone quality, have easy operation, easily realize and intelligent characteristics.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a diagram of an automatic switching system for audio signals according to the present invention;
fig. 2 is a schematic diagram of an automatic switching method of audio signals according to the present invention.
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, the present invention is an automatic switching system of audio signals, including an audio acquisition device, an audio processing module, a wireless communication transmission module, an audio playing device and an audio switching management module;
the audio acquisition equipment is used for inputting audio signals;
the audio processing module is used for converting the analog quantity audio signal sent by the audio acquisition equipment into a digital quantity audio signal and sending the digital quantity audio signal to the wireless communication transmission module;
the wireless communication transmission module is connected with the audio processing module and used for wirelessly transmitting the received digital quantity audio signals and sending the digital quantity audio signals to the audio switching management module;
the audio switching management module is used for detecting the state of the audio playing equipment, and if the audio playing equipment is in a playing state, the path switching is carried out on the received digital quantity audio signal, so that the digital quantity audio information to be played is in a waiting state, and waiting numbering is carried out according to time; if the audio playing equipment is in an unplayed state, converting the digital quantity audio signal into an analog quantity audio signal and detecting and processing the converted analog quantity audio signal;
the audio playing device is used for playing the analog quantity audio sent by the audio switching management module.
The audio switching management module comprises a state detection feedback unit, an analysis processing unit, a path switching unit, a digital-to-analog conversion unit and a filtering unit;
the state detection feedback unit is used for detecting the working state of the audio playing equipment and feeding the detected working state back to the analysis processing unit;
the analysis processing unit is used for receiving the digital quantity audio signals sent by the wireless communication transmission module, sending a state detection instruction to the state detection feedback unit, receiving feedback working state information, sending a path switching control instruction to the path switching unit and numbering the digital quantity audio signals to be played once the audio playing equipment is in a working state, and meanwhile detecting the state of the audio playing equipment according to set detection frequency; once the audio playing device is in a non-working state, the analysis processing unit sends a trigger instruction to the digital-to-analog conversion unit;
the path switching unit is used for switching the audio information to a waiting state by performing digital-to-analog conversion operation;
the digital-to-analog conversion unit is used for converting the received digital quantity audio signal into an analog quantity audio signal and sending the converted analog quantity audio signal to the filtering unit;
the filtering unit is used for detecting the frequency of the received analog quantity audio signal and removing the audio signal of which the frequency is higher than a set frequency range in the audio signal.
As shown in fig. 2, an automatic switching method of audio signals includes the following steps:
s1, detecting a digital quantity audio signal sent by the wireless communication transmission module;
s2, starting the detection of the working state of the audio playing device;
s3, judging the working state of the audio playing device, if the audio playing device is in the non-playing state, switching to the step S4, otherwise, switching to the step S6;
s4, path switching is carried out on the digital quantity audio signals sent by the wireless communication transmission module, so that the switched digital quantity audio signals are in a waiting state and are numbered according to the time sequence;
s5, automatically detecting the working state of the audio player every 3S, and if detecting that the audio playing equipment is in the playing state, sequentially switching the waiting digital quantity audio signals to the step S6 according to the serial number sequence;
s6, converting the digital audio signal into an analog audio signal;
s7, carrying out frequency detection on the converted analog quantity audio signal, and filtering out an audio frequency range exceeding a set range;
and S8, playing the analog audio signal.
According to the invention, the acquired analog quantity audio signal is converted into the digital quantity audio signal through the audio processing module, so that the wireless network transmission is facilitated, and the stability and accuracy of audio signal transmission are improved; can detect audio playback device's operating condition through audio frequency switching management module, treat the audio frequency of broadcast according to audio playback device's state and switch the processing, guarantee current audio playback's quality, and reduce the loss of switching in-process tone quality, have easy operation, easily realize and intelligent characteristics.
The foregoing is merely exemplary and illustrative of the principles of the present invention and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the principles of the present invention or exceeding the scope of the claims set forth herein.
Claims (1)
1. The utility model provides an automatic switching system of audio signal, includes that audio frequency acquisition device, audio frequency processing module, wireless communication transmission module, audio playback device and audio frequency switch management module, its characterized in that:
the audio processing module is used for converting the analog quantity audio signal sent by the audio acquisition equipment into a digital quantity audio signal and sending the digital quantity audio signal to the wireless communication transmission module;
the wireless communication transmission module is connected with the audio processing module and used for wirelessly transmitting the received digital quantity audio signals and sending the digital quantity audio signals to the audio switching management module;
the audio switching management module is used for detecting the state of the audio playing equipment, if the audio playing equipment is in a playing state, the path switching is carried out on the received digital quantity audio signal, and numbering waiting is carried out according to time; if the audio playing equipment is in an unplayed state, converting the digital quantity audio signal into an analog quantity audio signal and detecting and filtering the converted analog quantity audio signal;
the audio switching management module comprises a state detection feedback unit, an analysis processing unit, a path switching unit, a digital-to-analog conversion unit and a filtering unit;
the state detection feedback unit is used for detecting the working state of the audio playing equipment and feeding the detected working state back to the analysis processing unit;
the analysis processing unit is used for receiving the digital quantity audio signals sent by the wireless communication transmission module, sending a state detection instruction to the state detection feedback unit, receiving feedback working state information, if the analysis processing unit is in a working state, sending a path switching control instruction to the path switching unit, numbering the digital quantity audio signals to be played, and simultaneously detecting the state of the audio playing equipment according to a set detection frequency; if the digital-to-analog conversion unit is in a non-working state, the analysis processing unit sends a trigger instruction to the digital-to-analog conversion unit;
the path switching unit is used for switching the audio information to a waiting state by performing digital-to-analog conversion operation;
the digital-to-analog conversion unit is used for converting the received digital quantity audio signal into an analog quantity audio signal and sending the converted analog quantity audio signal to the filtering unit;
the filtering unit is used for detecting the frequency of the received analog quantity audio signal and removing the audio signal of which the frequency is higher than a set frequency range in the audio signal.
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| CN107948873B true CN107948873B (en) | 2020-09-01 |
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| CN113110258B (en) * | 2021-05-21 | 2022-04-05 | 华自科技股份有限公司 | Control system and redundancy switching method of control device |
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| CN206135929U (en) * | 2016-07-19 | 2017-04-26 | 成都苹果与蛇科技文化创意有限公司 | Novel public space broadcasting system |
| CN106604124A (en) * | 2015-10-19 | 2017-04-26 | 深圳市中兴微电子技术有限公司 | Audio data playing method and device |
Family Cites Families (1)
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| US20060030360A1 (en) * | 2004-08-04 | 2006-02-09 | Ming-Hsiang Yeh | Earphone type music broadcaster |
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Patent Citations (6)
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| CN201402608Y (en) * | 2009-04-14 | 2010-02-10 | 上海华平信息技术股份有限公司 | Audio playing system and audio-video playing system |
| CN202998418U (en) * | 2012-12-28 | 2013-06-12 | 无锡中星微电子有限公司 | Bluetooth earphones with audio frequency play function |
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