CN113470661A - Audio talkback starting request method for realizing automatic PTT, audio talkback method and storage medium - Google Patents

Audio talkback starting request method for realizing automatic PTT, audio talkback method and storage medium Download PDF

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Publication number
CN113470661A
CN113470661A CN202110673282.1A CN202110673282A CN113470661A CN 113470661 A CN113470661 A CN 113470661A CN 202110673282 A CN202110673282 A CN 202110673282A CN 113470661 A CN113470661 A CN 113470661A
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China
Prior art keywords
audio
talkback
interphone
intercom
volume value
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CN202110673282.1A
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Chinese (zh)
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蒋文春
刘柏顺
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Shenzhen Crystal Video Technology Co ltd
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Shenzhen Crystal Video Technology Co ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827Portable transceivers
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L17/00Speaker identification or verification
    • G10L17/22Interactive procedures; Man-machine interfaces
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/10Push-to-Talk [PTT] or Push-On-Call services

Abstract

The application relates to the technical field of talkback, in particular to an audio talkback starting request method, an audio talkback method and a storage medium for realizing automatic PTT, which comprise the following steps: acquiring a voiceprint signal of an area where an interphone is located to obtain a volume value of the voiceprint signal; and judging whether the volume value is larger than a preset volume threshold value, if so, determining that the voiceprint signal is valid, and initiating a talkback starting request. By acquiring the voiceprint signals of the area where the interphone is located, the voice volume value of the voiceprint signals of the user is automatically identified and judged, the speaking authority is automatically requested, the operation that the PTT key is firstly pressed when the traditional interphone needs to speak is avoided, and therefore the effect of convenience in use is achieved.

Description

Audio talkback starting request method for realizing automatic PTT, audio talkback method and storage medium
Technical Field
The present application relates to the field of intercom technologies, and in particular, to an audio intercom start request method, an audio intercom method, and a storage medium for implementing automatic PTT.
Background
PTT (Push-to-talk), i.e., a communication mode in which a Push switch is pressed to switch between a sending state and a receiving state, is commonly used in communication channels using a half-duplex mode, including an intercom.
The existing interphone is provided with a PTT button, when the interphone needs to realize a conversation function, the PTT button needs to be pressed all the time to send a conversation request, or the PTT button is pressed when the conversation is requested, and the PTT button is pressed when the conversation is finished, so that the interphone is inconvenient to use.
Disclosure of Invention
In order to achieve the effect of convenient operation, the application provides an audio talkback starting request method, an audio talkback method and a storage medium for realizing automatic PTT.
In a first aspect, the present application provides a method for implementing an audio intercom start request of an automatic PTT, which adopts the following technical scheme:
an audio talkback starting request method for realizing automatic PTT comprises the following steps:
acquiring a voiceprint signal of an area where an interphone is located to obtain a volume value of the voiceprint signal; and the number of the first and second groups,
and judging whether the volume value is larger than a preset volume threshold value, if so, determining that the voiceprint signal is valid, and initiating a talkback starting request.
By adopting the technical scheme, the voice print signal of the area where the interphone is located is obtained, the volume value of the voice print signal of the user is automatically identified and judged, the speaking authority is automatically requested, the operation that the PTT key is firstly pressed when the traditional interphone needs to speak is avoided, and the effect of convenient use is achieved.
Optionally, the volume threshold includes a first threshold, and the first threshold is an initial ambient audio volume value; the setting method of the initial environment audio volume value comprises the following steps:
after the interphone is started, an initial environment audio volume value of an area where the interphone is located is obtained and used as a first threshold value.
By adopting the technical scheme, when the collected voice print signal volume value is greater than the initial environment audio volume value, the voice print signal is determined to be effective, and the interphone initiates an intercommunication request, so that the interference of surrounding environment sounds is effectively reduced.
Optionally, the method for setting the initial ambient audio volume value further includes:
and acquiring the environment audio volume value of the area where the interphone is positioned in real time, and updating the initial environment audio volume value.
By adopting the technical scheme, the initial environment audio volume value is updated in real time according to the environment of the interphone, so that the environment sound change scene is adapted, the possibility of inputting the environment sound as effective speaking sound is effectively reduced, and the accuracy of automatic identification is improved.
Optionally, the volume threshold further includes a second threshold, where the second threshold is an effective voiceprint signal volume value; the method for setting the effective voiceprint signal volume value comprises the following steps:
after the interphone is started, acquiring an initial voiceprint signal volume value, and setting an effective voiceprint signal volume value according to the initial voiceprint signal volume value; the second threshold is greater than or equal to the first threshold.
By adopting the technical scheme, the first effective sound is input to obtain the initial voiceprint signal volume value, the effective voiceprint signal volume value is obtained according to the initial voiceprint signal volume value, the fluctuation range of the effective sound is allowed, and the accuracy of sound identification is convenient to improve.
In a second aspect, the audio intercom method for implementing automatic PTT provided by the present application adopts the following technical scheme:
an audio intercom method for realizing automatic PTT is realized based on an intercom set, wherein the intercom set comprises two or more interphones;
the method is based on any one of the audio talkback starting request methods, and comprises the following steps:
receiving a talkback starting request of a first interphone, judging whether the other interphones are in a talkback state currently or not, and if so, rejecting the starting request; if not, the talkback starting request of the first interphone is accepted, so that the first interphone enters a talkback state.
By adopting the technical scheme, after the talkback starting request of the first interphone is received, whether the other interphones in the interphone set are in the talkback state or not is judged, namely whether the channel is occupied or not, if so, the talkback starting request of the first interphone is rejected, if not, the talkback starting request of the first interphone is accepted, the first interphone enters the talkback state, the other interphones can conveniently receive the audio signal of the first interphone, and the conversation between the first interphone and the other interphones is realized.
Optionally, the audio intercom method further includes:
and when the interphone is in the talkback state, if the input time of the effective voiceprint signal is greater than a preset first time threshold value, the talkback state is switched to the listening state.
By adopting the technical scheme, when the input time of the effective voiceprint signal exceeds the preset time threshold, the listening state is automatically switched, the possibility that the speaking voice of surrounding people is large and is mistaken for effective voice is effectively reduced, and the accuracy of automatic voice recognition is convenient to improve.
Optionally, the audio intercom method further includes:
and when the interphone is in the talkback state, if the acquired voiceprint signal volume value is smaller than the effective voiceprint signal volume value and the acquired voiceprint signal input time is larger than a preset second time threshold value, switching the talkback state to the listening state.
By adopting the technical scheme, when the acquired voiceprint signal volume value is smaller than the effective voiceprint signal volume value and the acquired voiceprint signal input time is larger than the preset second time threshold value, the state is switched to the listening state, the possibility that the user makes a sound in a large time or in a small time or in a discontinuous time is effectively reduced, the possibility that the environmental sound is mistakenly considered as the effective sound is reduced, and the accuracy of automatic sound identification is further improved.
In a third aspect, the audio intercom method for implementing automatic PTT provided by the present application adopts the following technical scheme:
an audio intercom method for realizing automatic PTT is realized based on an intercom set, wherein the intercom set comprises two or more interphones;
the method is based on any one of the audio talkback starting request methods, and comprises the following steps:
receiving an audio talkback starting request of a first interphone, judging whether the first interphone is the interphone with the highest authority, if so, receiving the audio talkback starting request of the first interphone, and entering an audio talkback state; if not, adopting the audio talkback method in the second aspect.
By adopting the technical scheme, when the interphone with the highest authority initiates the talkback request, the talkback request of the interphone with the highest authority is responded, and the request command is sent to the other interphones, so that even if one of the interphones in the interphone set is in the talkback state, the talkback state of the interphone is automatically switched to the listening state, and the audio signal of the interphone with the highest authority is listened.
In a fourth aspect, the present application provides an intercom, adopt the following technical scheme:
an intercom, comprising:
the microphone is used for collecting audio signals of an area where the interphone is located;
the first processing module is used for receiving the audio signal, judging whether to initiate a talkback starting request according to the audio talkback starting request method and the received audio signal, and if so, initiating the talkback starting request;
the second processing module is used for selectively switching to an talkback state or a listening state according to the acceptance or rejection result of the returned talkback starting request;
the third processing module is used for receiving talkback starting requests sent by other interphones, judging whether the interphone is in a talkback state or not, and if the interphone is in the talkback state, rejecting the received talkback starting requests; if not, accepting the received talkback starting request;
and the loudspeaker is used for playing the audio signal.
By adopting the technical scheme, the microphone collects the audio signal of the area where the interphone is located and sends the audio signal to the first processing module of the interphone, and the first processing module receives the audio signal and judges whether to initiate an talkback request or not based on the audio signal; when the first processing module initiates a talkback starting request, the third processing modules of other interphones receive the talkback starting request sent by the first processing module and judge whether the third processing modules are in a talkback state; if yes, rejecting the received talkback starting request, and keeping the talkback in a listening state after a second processing module of the talkback receives a rejection result; if not, the received talkback starting request is accepted, at the moment, the interphone enters a talkback state, and audio signals are played through the speakers of other interphones, so that the conversation among the interphones is realized.
In a fifth aspect, the present application provides a computer-readable storage medium, which adopts the following technical solutions:
a computer readable storage medium storing a computer program capable of being loaded by a processor and performing any of the methods as described in the first, second and third aspects.
By adopting the technical scheme, the voice print signal of the area where the interphone is located is obtained, the volume value of the voice print signal of the user is automatically identified and judged, the speaking authority is automatically requested, the operation that the PTT key is firstly pressed when the traditional interphone needs to speak is avoided, and the effect of convenient use is achieved;
in addition, the conversation between at least two interphones is realized by acquiring the intercom starting request and the working state of the interphones.
Drawings
Fig. 1 is a block diagram of an audio intercom system according to an embodiment of the present application.
Fig. 2 is a block diagram of an audio intercom system according to another embodiment of the present application.
Fig. 3 is a flowchart illustrating an audio intercom start request method according to an embodiment of the present application.
Fig. 4 is a flowchart illustrating an audio intercom method according to an embodiment of the present application.
Description of reference numerals: 2. a first intercom; 3. a second intercom; 4. and (4) a server.
Detailed Description
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application. In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
First, terms related to embodiments of the present application will be described.
The talkback state: the method is characterized in that when an interphone talks, namely a signal transmitted to other interphones by the interphone exists in a channel of the interphone; the channel is a channel for transmitting signals between at least two interphones, and the signals are transmitted from the transmitting end to the receiving end through a transmission medium.
A listening state: the method is used for solving the problem that the interphone does not talk, namely, signals transmitted to other interphones by the interphone do not exist in channels of the interphone.
The present application is described in further detail below with reference to the attached drawing figures.
The embodiment of the application discloses an audio intercom system.
As shown in fig. 1, the audio intercom system includes an intercom set, the intercom set includes two or more interphones, and each of the interphones in the intercom set communicates in a wired or wireless manner; the intercom set comprises a first intercom 2 and at least one second intercom 3.
As an implementation manner of the audio intercom system, each intercom in the intercom set includes a microphone, a first processing module, a second processing module, a third processing module and a speaker.
As an implementation manner of the intercom switch in this embodiment, a main switch for controlling the intercom to be turned on or off is provided on the intercom, and the main switch is pressed to turn on or off the intercom. As another implementation manner of the intercom switch in this embodiment, a first switch for controlling the intercom to be turned on and a second switch for controlling the intercom to be turned off are provided on the intercom, and the intercom is turned on by pressing the first switch; and pressing the second switch to shut down the interphone.
After the first intercom 2 is turned on, the microphone of the first intercom 2 collects the audio signal of the area where the first intercom 2 is located, wherein the audio signal includes a voiceprint signal and an environmental audio signal.
The environment audio signals are converted into digital signals through an audio signal analog-to-digital converter arranged in a microphone of the first interphone 2, an initial environment audio volume value is obtained, the environment audio volume value of an area where the first interphone 2 is located is obtained in real time, the initial environment audio volume value is updated, and a volume threshold value is obtained according to the initial environment audio volume value.
The voiceprint signal is converted into a digital signal through an audio signal analog-to-digital converter arranged in a microphone of the first interphone 2, the sound volume value of the voiceprint signal is obtained, the sound volume value of the voiceprint signal is sent to a first processing module of the first interphone 2, the first processing module of the first interphone 2 is used for receiving the sound volume value of the voiceprint signal and judging whether the sound volume value of the voiceprint signal is larger than a sound volume threshold value, and if yes, an talkback starting request is sent to a second interphone 3 in the interphone set.
A third processing module of the second interphone 3 receives the talkback starting request sent by the first processing module of the first interphone 2, and judges whether the third processing module is in a talkback state, namely whether a channel is occupied or not, if so, the third processing module rejects the received talkback starting request; if not, the received talk-back on request is accepted.
As an implementation manner of the determination method for controlling the intercom to enter the intercom state by the second processing module, after the second processing module of the first intercom 2 receives the start rejection request sent by the third processing module of the second intercom 3, the first intercom 2 still keeps the listening state; when the second processing module of the first interphone 2 does not receive the opening rejection request sent by the third processing module of the second interphone 3 within the set time, the first interphone 2 enters the intercom state, and the second interphone 3 converts the sound volume value of the received voiceprint signal into an analog signal through the arranged digital-to-analog converter and plays the analog signal through the loudspeaker of the second interphone 3.
As another embodiment of the determination method for controlling the intercom to enter the intercom state by the second processing module, the second processing module of the first intercom 2 selects to switch to the intercom state or the listening state according to the acceptance or rejection result of the returned intercom start request, that is, after the second processing module of the first intercom 2 receives the acceptance start request sent by the third processing module of the second intercom 3, the first intercom 2 enters the intercom state; when the second processing module of the first intercom 2 receives the start rejection request sent by the third processing module of the second intercom 3, the first intercom 2 still keeps the listening state.
As shown in fig. 2, as another embodiment of the audio intercom system, the system further includes a server 4, wherein the server 4 may be independent from the intercom or integrated in the intercom; when the server 4 is integrated in an intercom, only the server of one intercom is always in the on state.
Each interphone in the interphone set comprises a microphone, a first processing module, a second processing module and a loudspeaker.
An audio signal analog-to-digital converter arranged in a microphone of the first interphone 2 converts the acquired voiceprint signal into a digital signal, a sound volume value of the voiceprint signal is obtained and sent to a first processing module of the first interphone 2, the first processing module of the first interphone 2 receives the sound volume value of the voiceprint signal and judges whether the sound volume value of the voiceprint signal is larger than a preset sound volume threshold value, and if yes, a talkback starting request is initiated to a server 4 in the interphone set.
As an implementation of the control method of the server 4, after receiving the talk-back start request sent by the first interphone 2, the server 4 determines whether the second interphone 3 is in a talk-back state, and if so, the server 4 sends a start rejection request to the second processing module of the first interphone 2; if not, the server 4 sends an acceptance opening request to the second processing module of the first interphone 2, and switches the first interphone 2 to the talkback state.
As another embodiment of the control mode of the server 4, the server 4 receives an intercom start request sent by the first processing module of the first intercom 2, and sends the intercom start request to the second intercom 3, the second intercom 3 judges whether itself is in an intercom state, if so, the server 4 sends a start refusal request; if not, sending an acceptance starting request to the server 4, and selecting to switch the first interphone 2 to an talkback state or a listening state by the server 4 according to the received acceptance starting request or refusal starting request.
The following describes in detail the implementation of the audio intercom start request method in conjunction with the audio intercom system:
referring to fig. 3, an embodiment of the present application provides an audio intercom starting request method for implementing automatic PTT, including the following steps:
and S10, acquiring the voiceprint signals of the area where the interphone is located, and acquiring the volume value of the voiceprint signals.
Specifically, a microphone is used for collecting voiceprint signals of an area where the interphone is located, and the voiceprint signals are converted into digital signals through an audio signal analog-to-digital converter arranged in the microphone, so that the volume value of the voiceprint signals is obtained.
And S11, judging whether the volume value is larger than a preset volume threshold value, if so, determining that the voiceprint signal is valid, and initiating a talkback starting request.
As an embodiment of the volume threshold setting, the volume threshold includes a first threshold, and the first threshold is an initial ambient audio volume value.
As an implementation of setting the initial volume value of the environment, when a master switch of the intercom is pressed, the intercom is turned on, and after a preset time period of turning on the intercom, for example, 200 ms; the microphone collects an initial environment audio signal of an area where the current interphone is located, the initial environment audio signal is converted into a digital signal through an audio signal analog-to-digital converter arranged in the microphone, an initial environment audio volume value is obtained, and the initial environment audio volume value is used as a first threshold value.
The effective ambient audio volume value d1 is obtained according to the formula d1= d + a, where d is the obtained initial ambient audio volume value and a is the offset. In addition, the offset a changes according to the initial ambient audio volume value d, and d =30dB and a =5dB are used as initial values, and a is increased by 1dB every time d is increased by 5 dB; for every 5dB reduction in d, a is reduced by 1 dB. E.g., d =40dB, then d1=40dB +5dB +2dB =47 dB.
In order to adapt to the environment change, the environment audio volume value of the area where the interphone is located is further obtained in real time, and the initial environment audio volume value is updated.
It should be noted that, when the intercom is in the listening state, the time when the intercom is in the listening state is taken as a starting point, the time period is taken as an interval to obtain the real-time environment audio signal of the area where the intercom is located, and the environment audio volume value is obtained after the real-time environment audio signal is converted into the digital signal through the audio signal analog-to-digital converter arranged in the microphone.
And updating the initial environment audio volume value in real time according to the environment audio volume value so as to reduce the possibility that the initial environment audio signal is changed due to the change of the environment where the interphone is positioned, and improve the accuracy of automatic identification.
As another embodiment of the volume threshold setting, the volume threshold includes a first threshold and a second threshold, the first threshold is an initial ambient audio volume value, the second threshold is an effective voiceprint signal volume value, and the second threshold is greater than or equal to the first threshold.
As an implementation manner of the method for setting the sound volume value of the effective voiceprint signal, an initial voiceprint signal of a first effective sound recorded by a user is acquired through a microphone of an interphone, and the initial voiceprint signal sound volume value is obtained after the effective audio signal is converted into a digital signal through an audio signal analog-to-digital converter arranged in the microphone.
An effective voiceprint signal volume value b1 is obtained according to the formula b1= b × n, b is the obtained initial voiceprint signal volume value, n is the fluctuation tolerance, and the effective voiceprint signal volume value b1 is smaller than the initial voiceprint signal volume value b and larger than the effective ambient audio volume value d 1. For example b =50dB, d1=40dB, n =0.9, then b1=50dB x 0.9=45 dB.
The following describes in detail the implementation of the audio intercom method with reference to the audio intercom start request method and the audio intercom system:
the embodiment of the application also provides an audio talkback method for realizing the automatic PTT.
As an embodiment of the audio intercom method, as shown in fig. 1, the first intercom 2 sends an intercom start request to the second intercom 3 in the intercom set, and the second intercom 3 receives the intercom start request of the first intercom 2 and determines whether the time when it receives the intercom start request is in an intercom state, that is, whether the channel is occupied. If yes, sending a start refusing request to the first interphone 2; if not, no information is sent. The first interphone 2 enters the talkback state after not receiving the start refusing request sent by the second interphone 3 within the set time.
It should be noted that, when one of the interphones in the interphone group is in the talkback state, it indicates that the channel is occupied at this time, and the other interphones can not operate any more.
For example, the first interphone 2 includes an interphone a, and the second interphone 3 is set as an interphone B and an interphone C. When the interphone A initiates an talkback request to the interphone B and the interphone C, if the interphone B is in a talkback state and the interphone C is in a listening state, the channel is occupied, the interphone B sends a rejection request to the interphone A, and the interphone C does not send information.
As another embodiment of the audio intercom method, as shown in fig. 2, a first intercom 2 sends an intercom start request to a server 4, the server 4 sends the intercom start request to a second intercom 3 in an intercom set, the second intercom 3 receives the intercom start request from the server 4 and judges whether itself is currently in an intercom state, if so, then sends a start rejection request to the server 4; if not, an accept open request is sent to the server 4. The server 4 selectively switches the first interphone 2 to an talkback state or a listening state according to the received opening accepting request or the opening refusing request, namely when the server 4 receives the opening accepting request of the second interphone 3, the first interphone 2 is switched to the talkback state; when the server 4 receives the turn-on rejection request of the second interphone 3, the first interphone 2 still keeps the listening state.
As another embodiment of the audio intercom method, the first intercom 2 sends an intercom starting request to the server 4, after receiving the intercom starting request, the server 4 judges whether the second intercom 3 is currently in an intercom state, and if so, sends a start refusing request to the first intercom 2; if not, sending an acceptance opening request to the first interphone 2, and switching the first interphone 2 to an talkback state.
In addition, when the interphone is in the talkback state, if the input time of the effective voiceprint signal is greater than a preset first time threshold, the talkback state is automatically switched to the listening state. The first time threshold is related to the initial environment audio volume value, and when the initial environment audio volume value is smaller, the first time threshold is longer, so that the interference of the ambient environment sound is effectively reduced.
And when the interphone is in the talkback state, if the acquired voiceprint signal volume value is smaller than the effective voiceprint volume value and the acquired voiceprint signal input time is larger than a preset second time threshold value, automatically switching the talkback state to the listening state.
As another embodiment of the audio intercom method, as shown in fig. 4, a highest-authority intercom is set in the intercom set, and the environment where the highest-authority intercom is located is relatively fixed. When the highest-authority interphone initiates the talkback starting request, the other interphones in the interphone set receive the talkback starting request of the highest-authority interphone, and at the moment, the other interphones enter a listening state. Even if one of the interphones in the interphone set is in the talkback state, the talkback state of the interphone is automatically switched to the listening state, and the audio signal of the interphone with the highest authority is listened.
It should be noted that, the second intercom 3 receives the intercom start request of the first intercom 2, and determines whether the first intercom 2 is the highest-authority intercom, if yes, the first intercom 2 is switched to the intercom state, and the second intercom 3 is switched to the listening state; if not, any of the three audio intercom methods described above are employed.
Based on the same inventive concept, the embodiment of the present application further discloses a computer-readable storage medium, which includes various steps that can be executed by a processor to implement the audio intercom start request method and the audio intercom method flow.
The computer-readable storage medium includes, for example: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, only the division of the functional modules is illustrated, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the system is divided into different functional modules to complete all or part of the above described functions.
The above embodiments are only used to describe the technical solutions of the present application in detail, but the above embodiments are only used to help understanding the method and the core idea of the present application, and should not be construed as limiting the present application. Those skilled in the art should also appreciate that various modifications and substitutions can be made without departing from the scope of the present disclosure.

Claims (10)

1. An audio talkback starting request method for realizing automatic PTT is characterized by comprising the following steps:
acquiring a voiceprint signal of an area where an interphone is located to obtain a volume value of the voiceprint signal; and the number of the first and second groups,
and judging whether the volume value is larger than a preset volume threshold value, if so, determining that the voiceprint signal is valid, and initiating a talkback starting request.
2. The method of claim 1, wherein the volume threshold comprises a first threshold, and the first threshold is an initial ambient audio volume value; the setting method of the initial environment audio volume value comprises the following steps:
after the interphone is started, an initial environment audio volume value of an area where the interphone is located is obtained and used as a first threshold value.
3. The method for requesting audio intercom voice enabling to implement automatic PTT according to claim 2, wherein the method for setting the initial ambient audio volume value further comprises:
and acquiring the environment audio volume value of the area where the interphone is positioned in real time, and updating the initial environment audio volume value.
4. The method for enabling audio talkback requests for automatic PTT according to claim 2 or claim 3, wherein the volume thresholds further comprise a second threshold, and the second threshold is an effective voiceprint signal volume value; the method for setting the effective voiceprint signal volume value comprises the following steps:
after the interphone is started, acquiring an initial voiceprint signal volume value, and setting an effective voiceprint signal volume value according to the initial voiceprint signal volume value; the second threshold is greater than or equal to the first threshold.
5. An audio intercom method for realizing automatic PTT is characterized in that the audio intercom method is realized based on an intercom set, and the intercom set comprises two or more intercoms;
the method is based on the audio talkback start request method of any one of claims 1 to 4, and comprises the following steps:
receiving a talkback starting request of a first interphone, judging whether the other interphones are in a talkback state currently or not, and if so, rejecting the starting request; if not, the talkback starting request of the first interphone is accepted, so that the first interphone enters a talkback state.
6. The audio intercom method according to claim 5, wherein the audio intercom method further comprises:
and when the interphone is in the talkback state, if the input time of the effective voiceprint signal is greater than a preset first time threshold value, the talkback state is switched to the listening state.
7. The audio intercom method according to claim 5, wherein the audio intercom method further comprises:
and when the interphone is in the talkback state, if the acquired voiceprint signal volume value is smaller than the effective voiceprint signal volume value and the acquired voiceprint signal input time is larger than a preset second time threshold value, switching the talkback state to the listening state.
8. An audio intercom method for realizing automatic PTT is characterized in that the audio intercom method is realized based on an intercom set, and the intercom set comprises two or more intercoms;
the method is based on the audio talkback start request method of any one of claims 1 to 4, and comprises the following steps:
receiving an audio talkback starting request of a first interphone, judging whether the first interphone is the interphone with the highest authority, if so, receiving the audio talkback starting request of the first interphone, and entering an audio talkback state; if not, the audio intercom method of any one of claims 5-7 is used.
9. An intercom, comprising:
the microphone is used for collecting audio signals of an area where the interphone is located;
a first processing module, configured to receive the audio signal, and determine whether to initiate a talk-back start request according to the audio talk-back start request method and the received audio signal of any one of claims 1 to 4, and if so, initiate a talk-back start request;
the second processing module is used for selectively switching to an talkback state or a listening state according to the acceptance or rejection result of the returned talkback starting request;
the third processing module is used for receiving talkback starting requests sent by other interphones, judging whether the interphone is in a talkback state or not, and if the interphone is in the talkback state, rejecting the received talkback starting requests; if not, accepting the received talkback starting request;
and the loudspeaker is used for playing the audio signal.
10. A computer-readable storage medium characterized by: a computer program which can be loaded by a processor and which performs the method according to any of claims 1-8.
CN202110673282.1A 2021-06-17 2021-06-17 Audio talkback starting request method for realizing automatic PTT, audio talkback method and storage medium Pending CN113470661A (en)

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