CN113542511A - Processing method of multi-channel audio mixing, mixing device and readable storage medium - Google Patents
Processing method of multi-channel audio mixing, mixing device and readable storage medium Download PDFInfo
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- H—ELECTRICITY
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- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
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- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
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- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
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Abstract
The invention discloses a processing method of multi-channel audio mixing, a mixing device and a readable storage medium, comprising the following steps: receiving first audio information in a communication state sent by a first mobile terminal, wherein the first audio information is transmitted through a short-distance channel established with the first mobile terminal; receiving second audio information in a communication state sent by a second mobile terminal, wherein the second audio information is transmitted through a short-distance channel established with the second mobile terminal; mixing the first audio information and the second audio information to form local mixing information; and performing on-site play-out on the local sound mixing information. The invention can simply, conveniently and quickly realize multi-party voice communication, is not limited by the fact that the mobile terminals corresponding to each participant belong to the same platform and are provided with the same communication APP, and can reduce the operation required to be executed by a remote user in the process of establishing the multi-party voice communication.
Description
Technical Field
The invention belongs to the technical field of sound mixing, and particularly relates to a method and a device for processing multi-channel audio sound mixing.
Background
Currently, among the ways to implement multi-party real-time voice communication, there is a common way as follows: the first user can create conference communication (such as an audio and video conference of enterprise WeChat) by starting a conference function carried in the communication software, and the second user who has the same communication software (enterprise WeChat) installed in the established conference communication can be pulled in to realize multiparty voice communication. In the process of establishing the multiparty conference communication, because the multiparty voice communication established by the communication software relates to the participation of background services, that is, the user a and the user b need to execute operations related to the background services on respective mobile terminals, such as establishing a user account, logging in the user account, receiving a friend invitation and the like.
Therefore, although the above manner for realizing multi-party voice communication can realize multi-party communication, for a user (such as a third user) who does not have the same communication software and needs to enter a conference, the above common manner is invalid, the third user cannot be pulled in for conference communication (the same conference platform is limited), and the process for establishing multi-party voice requires each user to perform some complex operations related to background services, which reduces the efficiency of establishing a conference and reduces the user experience.
Namely, the existing way for realizing multi-party communication has the problem that cross-platform application cannot be realized due to the fact that each party needs to have the same communication software.
Therefore, the prior art is to be improved.
Disclosure of Invention
The invention mainly aims to provide a processing method of multi-channel audio mixing, a mixing device and a readable storage medium, so as to solve the problem that the existing method for realizing multi-party voice communication in the background art needs the same communication software on each party, which causes the problem that cross-platform application cannot be realized.
In a first aspect of the present invention, a method for processing a multi-channel audio mixing is provided, which is applied to a mixing apparatus, and includes:
receiving first audio information in a communication state sent by a first mobile terminal, wherein the first audio information is transmitted through a short-distance channel established with the first mobile terminal;
receiving second audio information in a communication state sent by a second mobile terminal, wherein the second audio information is transmitted through a short-distance channel established with the second mobile terminal;
performing sound mixing processing on the first audio information and the second audio information according to a preset first sound mixing selection strategy to form local sound mixing information;
and performing on-site play-out on the local sound mixing information.
In a second aspect of the present invention, there is provided a sound mixing apparatus, including a memory, a processor, and a bus, where the bus is used to implement connection communication between the memory and the processor, and the processor is used to execute a computer program stored in the memory, and the processor implements the steps in the method of the first aspect when executing the computer program.
In a third aspect of the present invention, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method of processing a multi-audio mix of the first aspect.
Based on the first mobile terminal, the second mobile terminal and the sound mixing device, the first audio information and the second audio information respectively received by the first mobile terminal and the second mobile terminal are transmitted to the sound mixing device through the two independent and non-interfering close-range channels established by the three devices so as to be subjected to sound mixing processing and then played. Therefore, a first object for performing remote communication with the first mobile terminal, a second object for performing remote communication with the second mobile terminal and users of the double mobile terminals can quickly and conveniently realize multi-path communication. And the mode for realizing the multi-path communication is based on the application of the sound mixing device to carry out sound mixing, thereby helping a user to realize a cross-platform conference and eliminating the limitation on the platform used by an accessor. And operations (for example, the remote user only needs to perform an operation of connecting a call) that need to be performed on a corresponding mobile terminal where a user of the first remote mobile terminal corresponding to the first mobile terminal and a user of the second remote mobile terminal corresponding to the second mobile terminal are located can be effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic block diagram of an implementation environment in accordance with various embodiments of the present invention;
fig. 2 is a flowchart of a processing method of multi-party audio mixing according to an embodiment of the present invention;
fig. 3 is a flowchart of a processing method of multi-party mixing according to an embodiment of the present invention;
fig. 4 is a flowchart of a processing method of multi-party mixing according to an embodiment of the present invention;
fig. 5 is a flowchart of a processing method of multi-party mixing according to an embodiment of the present invention;
fig. 6 is a flowchart of a processing method of multi-party mixing according to an embodiment of the present invention;
fig. 7 is a flowchart of a processing method of multi-party mixing according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a processing apparatus for multi-party mixing according to an embodiment of the present invention;
fig. 9 is a block diagram of a mixing apparatus in a multi-party mixing processing apparatus according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It is noted that relative terms such as "first," "second," and the like may be used to describe various components, but these terms are not intended to limit the components. These terms are only used to distinguish one component from another component. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present invention.
Referring to fig. 1, a schematic diagram of an implementation environment according to various embodiments of the present invention is shown. The implementation environment includes: the mobile terminal includes a mixing apparatus 10, a first mobile terminal 21, and a second mobile terminal 31.
The first mobile terminal 21 may be a smart phone, a tablet computer, an e-book reader, an MP3 player (Moving Picture Experts Group Audio Layer III, motion Picture Experts Group Audio Layer 3), an MP4 player (Moving Picture Experts Group Audio Layer IV, motion Picture Experts Group Audio Layer 3), an IPAD, or the like.
The second mobile terminal 31 may be a smart phone, a tablet computer, an e-book reader, an MP3 player (Moving Picture Experts Group Audio Layer III, motion Picture Experts Group Audio Layer IV, motion Picture Experts Group Audio Layer 3), an MP4 player (Moving Picture Experts Group Audio Layer IV, motion Picture Experts Group Audio Layer 3), an IPAD, a non-smart phone, or the like.
The audio mixing device 10 is provided with at least two data interfaces, and the two data interfaces are respectively used for performing wired or wireless connection with a corresponding first mobile terminal and a corresponding second mobile terminal; the two data interfaces are respectively a first audio data interface and a second audio data interface, such as a 3.5mm interface, a 2.5mm interface, a USB interface or a bluetooth interface. Generally, when one data interface is in wired connection with a first mobile terminal, the other data interface is also in wired connection with a second mobile terminal; when one data interface is wirelessly connected with the first mobile terminal, the other data interface is also wirelessly connected with the second mobile terminal. Secondly, still be provided with the sound mixing module in the sound mixing device to provide sound mixing processing function. Because the hardware type sound mixing processing is carried out by the sound mixing module in the sound mixing device, the sound mixing of the voice is finished at the terminal side, the support of the network server side equipment for the sound mixing is not relied on, and the sound mixing device does not have the communication function and the dialing function, and is essentially a processing device.
The implementation environment further includes a first remote mobile terminal 22 in remote communication with the first mobile terminal 21 and a second remote mobile terminal 32 in remote communication with the second mobile terminal 31. The environment of the first mobile terminal and the environment of the second mobile terminal are used as the local meeting place, the environment of the first far-end mobile terminal 22 is used as the first far-end meeting place, and the environment of the second mobile terminal is used as the second far-end meeting place. Such meeting place distinction is mainly distinguished according to different connection states with the sound mixing device, for example, a first mobile terminal and a second mobile terminal are in direct connection (wired and wireless) with the sound mixing device, and another second far-end mobile terminal and a first far-end mobile terminal are in indirect connection with the sound mixing device.
The present invention is described with only two mobile terminals in the following embodiments, and those skilled in the art will understand that the implementation environment to which the present invention is applied may further include more mobile terminals such as a third mobile terminal and a fourth mobile terminal, that is, correspondingly, the present invention further includes a third remote mobile terminal forming remote communication with the third mobile terminal and a fourth mobile terminal forming remote communication with the fourth mobile terminal.
As shown in fig. 2, it shows a flowchart of a processing method of multi-party mixing according to an embodiment of the present invention, including:
step S101, a first mobile terminal establishes a short-distance channel with an audio mixing device;
in step S101, the first mobile terminal and the mixing apparatus may be connected by a wired or wireless manner, so that the first mobile terminal establishes a short-distance channel with the mixing apparatus. Wherein, wired mode is: and a short-distance wired channel for transmitting the first audio information in a communication state is established with a first audio data interface on the audio mixing device, and the first audio data interface can be a 3.5mm interface. The wireless mode is as follows: and establishing a short-distance wireless channel for transmitting the first audio information in the communication state with a wireless connection port in the sound mixing device.
In step S101, the short-distance channel is a channel established between the first mobile terminal and the first audio data interface on the audio mixing apparatus and used for transmitting the first audio information; the purpose of the short-distance channel establishment is to transmit the first audio information to the mixing device, so that the mixing module of the mixing device can perform mixing processing on the received first audio information and the second audio information from the second mobile terminal.
Step S102, the second mobile terminal establishes a short-distance channel with the sound mixing device;
in step S102, the second mobile terminal and the mixing apparatus may be connected by wire or wirelessly, so that the second mobile terminal establishes a short-distance channel with the mixing apparatus. Wherein, wired mode is: and a short-distance wired channel for transmitting the second audio information in a communication state is established with a second audio data interface on the audio mixing device. The wireless mode is as follows: and establishing a short-distance wireless channel for transmitting the first audio information in the communication state with a wireless connection port in the sound mixing device.
In step S102, the short-distance channel is a channel established between the second mobile terminal and the second audio data interface on the audio mixing apparatus and used for transmitting the first audio information; the purpose of the short-distance channel establishment is to transmit the second audio information to the mixing device, so that the mixing module of the mixing device can perform mixing processing on the received second audio information and the first audio information from the first mobile terminal.
Step S103, the first mobile terminal sends first audio information in a communication state to the audio mixing device according to the short-distance channel;
in step S103, the audio mixing apparatus receives first audio information in a communication state sent by the first mobile terminal according to the short-distance channel established with the first mobile terminal; the first audio information in the communication state comprises call audio transmission information in a call communication state and/or conference audio transmission information in a conference communication state and associated with the first mobile terminal.
Further, the call audio transmission information in the call communication state associated with the first mobile terminal represents the call audio transmission information in the call communication process established by the first mobile terminal with the first remote mobile terminal through the dialing function. For example, the first mobile terminal of the user a establishes a call communication process with the first remote mobile terminal of the user B through a dialing function, and in the call communication process, both the audio output by the user a and the audio output by the user B are call audio transmission information in a call communication state.
Further, the conference audio transmission information associated with the first mobile terminal in the conference communication state represents the conference audio transmission information in the conference communication process established by the first mobile terminal and the first far-end mobile terminal through the conference function established in the instant messaging APP. For example, the first mobile terminal of the user a establishes a conference communication process with the first remote mobile terminal of the user B through the enterprise WeChat APP, and in the conference communication process, the audio output by the user a and the audio output by the user B are both conference audio transmission information in a conference communication state.
Step S104, the second mobile terminal sends the second audio information in the communication state to the audio mixing device according to the short-distance channel;
in step S104, the audio mixing apparatus receives the second audio information in the communication state sent by the second mobile terminal according to the short-distance channel established with the second mobile terminal; the second audio information in the communication state comprises call audio transmission information in the call communication state and associated with the second mobile terminal and/or conference audio transmission information in the conference communication state and associated with the second mobile terminal.
Further, the call audio transmission information in the call communication state associated with the second mobile terminal represents the call audio transmission information in the call communication process established by the second mobile terminal with the second remote mobile terminal through the dialing function. For example, the second mobile terminal of the C user establishes a call communication process with the second mobile terminal of the D user through the dialing function, and in the call communication process, the audio output by the C user and the audio output by the D user are both call audio transmission information in a call communication state.
Further, the conference audio transmission information associated with the second mobile terminal in the conference communication state represents the conference audio transmission information in the conference communication process established by the second mobile terminal and the second remote mobile terminal through the conference function established in the instant messaging APP. For example, the second mobile terminal of the C user establishes a conference communication process with the second remote mobile terminal of the D user through the enterprise WeChat APP, and in the conference communication process, the audio output by the C user and the audio output by the D user are both conference audio transmission information in a conference communication state.
And step S105, the sound mixing device performs sound mixing processing on the first audio information and the second audio information according to a preset first sound mixing selection strategy to form local sound mixing information, and performs on-site play on the local sound mixing information.
In step S105, a mixing module in the mixing apparatus performs mixing processing on the first audio information and the second audio information according to a preset first mixing selection policy; need carry out the audio mixing simultaneously to the audio frequency that comes from a plurality of parties communication process that a plurality of customer ends transmitted with traditional APP server side and handle and compare, the audio mixing device in this application is owing to only need carry out the audio mixing to the first audio information of audio data interface transmission through first, the second audio information of second audio data interface transmission is handled, the audio information based on the required processing of carrying out the audio mixing still less, and all belong to same many parties communication process, consequently, the audio mixing efficiency, stability is higher, can obtain the better audio mixing quality when being applied to corresponding audio mixing strategy.
In the above embodiment, based on steps S101, S102, S103, S104 and S105, two short-distance channels are established in the local conference room through two mobile terminals in combination with one mixing device, and the two short-distance channels respectively receive the first audio information and the second audio information respectively transmitted by two far-end mobile terminals, so that the two audio information are mixed and then played back in the local conference room based on the mixing device. Therefore, multi-party communication can be simply, conveniently and quickly realized, and the condition that mobile terminals corresponding to each participant belong to the same platform and are provided with the same communication APP is avoided. In the process of establishing the real-time conference, the two remote mobile terminals do not need to carry out additional complex operation, the most complex operation can be pulled into the real-time conference only by connecting a call, and the use experience of a remote user of the remote mobile terminal is greatly improved.
In the above embodiment, the second audio information in the communication state may also be recorded information. Specifically, the recorded information may be stored by the second mobile terminal itself, or may be transmitted via the second remote mobile terminal. The recording information may participate in the subsequent mixing process for playing out, that is, the recording information may be played out locally, and at the same time, the recording information may be transmitted to another first remote mobile terminal. The method can play and transmit one recording message in multiple ways by establishing a multi-party voice conference, is suitable for serious application scenes, and has strong practicability.
In the foregoing embodiment, when the first audio information is call audio transmission information associated with the first mobile terminal and in a call communication state, and the second audio information is conference audio transmission information associated with the second mobile terminal and in a conference communication state, that is, the audio mixing apparatus in step S105 performs audio mixing processing on the call audio transmission information and the conference audio transmission information according to a preset first audio mixing selection policy to form local audio mixing information, that is, the embodiment is not limited to whether two audio information required to perform audio mixing processing belong to the same type, which is a benefit and an advantage of the short-distance channel established in steps S101 and S102, and this is a point that is different from the prior art.
In step S105, optionally, the first mixing selection policy corresponding to the mixing process executed by the mixing module of the mixing apparatus is:
wherein, AomRepresenting the mixing information output from the mth channel, bmRepresenting the output gain of the mth audio output, n representing the total number of audio mixing processes required by the audio mixing device, akRepresenting the gain of the kth audio input, k being an amount representing the number of channels in the mixing process; aikRepresenting the k-th audio information, amRepresenting the gain of the mth audio input, AimRepresenting the mth way of audio information. When the mixing module of the mixing device receives audio information from multiple paths (first audio information and second audio information), each piece of audio information required to be subjected to mixing processing is determined according to a first mixing selection strategy, and then the audio information is processed into an output Aom (local mixing information) for on-site play, so that the local mixing information is obtained through better mixing processing quality, and the local mixing information is suitable for on-site play. Of course, the mixing process may not be limited to the first mixing selection strategy, and is not described herein again.
Wherein for the first mix selection strategy in step S105
The first audio mixing selection strategy is mainly used for selecting from the first audio information and the second audio information to form audio information to be subjected to audio mixing processing, after the selection is completed, the audio information to be subjected to audio mixing processing is subjected to audio mixing processing to form local audio mixing information, and then the local audio mixing information is played outside the field.
It should be noted that the first mixing selection strategy in the present invention is based on
It can be seen that the present invention is not only applicable to the first audio information and the second audio information, but also applicable to the third audio information and the fourth audio information, etc., i.e., to multi-party audio mixing, in the case of increasing the data interface.
More specifically: the mixing the first audio information and the second audio information according to a preset first mixing selection strategy to form local mixing information specifically includes:
step S1051, if a first selection instruction of a user is received, selecting audio information to be subjected to audio mixing processing from first audio information and second audio information according to the first selection instruction, and performing audio mixing processing according to the audio information to be subjected to audio mixing processing to form local audio mixing information;
the first selection instruction is triggered by a selection button or a touch screen of a user on the mixing device, and the first selection instruction is used for selectively determining audio information to be mixed (determining which audio needs to be mixed) based on the autonomy of the user. For example, now, the mixing apparatus has established two independent short-distance channels with the first mobile terminal and the second mobile terminal, respectively, but a user at a local meeting place can select only audio information transmitted by one of the mobile terminals for mixing and playing out by self-selection (the other mobile terminal is not selected due to privacy problems or not connected with the corresponding far-end mobile terminal).
Step 1052, if the first selection instruction of the user is not received, automatically mixing the first audio information and the second audio information to form local mixing information; when a first selection instruction of a user is not received, automatically determining the audio information to be subjected to audio mixing processing by the audio mixing device through the local audio information received by the microphone, the first audio information received by the first audio data interface and the second audio information received by the second audio data interface, then performing audio mixing processing on the audio information to be subjected to audio mixing processing to form local audio mixing information, and finally performing on-site play.
It should be noted that, in each embodiment, the short-distance channel, the first audio information in the communication state, the second audio information in the communication state, the first audio mixing selection policy, and the like are the same technical features, and their corresponding explanations and functions are the same. Therefore, after the description is given in one of the embodiments, the description of the remaining embodiments is not repeated.
The invention also comprises the following steps:
receiving local audio information in a communication state in a local conference place, wherein the local audio information is acquired by a microphone of the sound mixing device;
and carrying out sound mixing processing on the local audio information according to a preset first sound mixing selection strategy to form far-end sound mixing information, and sending the far-end sound mixing information to the first mobile terminal and the second mobile terminal through the short-distance channel respectively so that the first mobile terminal can output the far-end sound mixing information after receiving the far-end sound mixing information and the second mobile terminal can output the far-end sound mixing information after receiving the far-end sound mixing information.
It should be noted here that the far-end mixing information is two paths of far-end mixing information, and the two paths of far-end mixing information and the local mixing information are formed simultaneously. Specifically, a sound mixing module in the sound mixing device performs sound mixing processing on the first audio information and the second audio information to form local sound mixing information, and simultaneously the sound mixing module in the sound mixing device performs sound mixing processing on the local audio information to form two paths of far-end sound mixing information, wherein the two paths of far-end sound mixing processing are respectively transmitted to a first far-end mobile terminal corresponding to the first mobile terminal and a second far-end mobile terminal corresponding to the second mobile terminal through two short-distance channels. That is, the processing method of multi-channel audio mixing of the present invention forms three channels of mixing information (two channels of far-end mixing information and one channel of local mixing information) at the same time, so as to achieve real-time conference communication between the local conference place and the far-end conference place.
The two paths of far-end sound mixing information are formed by performing sound mixing processing on local audio information by a sound mixing module in the sound mixing device, and the one path of local audio information is formed by performing sound mixing processing on first audio information and second audio information by the sound mixing module in the sound mixing device.
The method comprises the steps that echo cancellation processing is carried out on local audio information acquired by a microphone, and then the local audio information subjected to the echo cancellation processing is subjected to sound mixing processing according to a preset first sound mixing selection strategy to form far-end sound mixing information; the echo cancellation processing is performed on a sound mixing device including an external playing module (loudspeaker) and a sound pickup module (microphone) at the same time, so that local audio information acquired by the microphone is processed through the echo cancellation processing, and then the sound mixing processing is performed, and no echo exists in the local audio information needing to be subjected to the sound mixing processing.
The local audio information is one path of audio information which is output to a sound mixing module in the sound mixing device after the sound pickup module of the sound mixing device performs noise reduction on local conversation audio received by a microphone of the sound mixing device; local conversation audio refers to sounds made by users in a local conference room (e.g., made by an a-user holding a first mobile terminal and a C-user holding a second mobile terminal).
Certainly, it should be noted that the user a and the user C may be the same user, that is, one user simultaneously holds the first mobile terminal and the second mobile terminal, and the users are respectively associated with different mobile terminals based on different types of clients; therefore, the processing method of multi-party sound mixing can be executed based on the sound mixing device of the invention, so that different users on different mobile terminals of the user can be quickly and simply pulled into a conference for multi-party communication.
As shown in fig. 3, the method for processing multi-channel audio mixing according to the present invention is applied to a mixing apparatus, and includes:
step S200, receiving first audio information in a communication state sent by a first mobile terminal, wherein the first audio information is transmitted through a short-distance channel established with the first mobile terminal;
step S201, receiving second audio information in a communication state sent by a second mobile terminal, wherein the second audio information is transmitted through a short-distance channel established with the second mobile terminal;
step S202, performing sound mixing processing on the first audio information and the second audio information according to a preset first sound mixing selection strategy to form local sound mixing information;
in step S202, a first mixing selection strategy is preset by a mixing module in the mixing apparatus.
And step S203, performing on-site play-out on the local mixing information.
In step S203, live play indicates that the mixing information is played through a speaker on the mixing apparatus; that is, the user a in the local conference room holding the first mobile terminal and the user B in the local conference room holding the second mobile terminal can realize multi-party communication with the user C corresponding to the first remote mobile terminal and the user D corresponding to the second remote mobile terminal based on the on-site play-out, and audio information from each party is played by performing the audio mixing processing based on the local audio mixing information, so that the played audio information is played in a preset logic sequence, and a better play-out effect is achieved.
It should be noted that, for the C user corresponding to the first remote mobile terminal, it is not specified that the C user is one, and if the conference communication process is established between the first mobile terminal and the first remote mobile terminal, the C user may be multiple users. The same reason for the user D corresponding to the second remote mobile terminal is not described again.
In the above embodiment, the method may be applied to an application scenario, for example, the first mobile terminal is a smart phone, and the smart phone is a phone installed with communication software (for example, enterprise WeChat); the second mobile terminal is a non-smart mobile phone, the non-smart mobile phone is a mobile phone (old Nokia or old man) which cannot be provided with communication software, and the non-smart mobile phone is provided with a 3.5mm interface based on the old man and can be connected with a data interface of the sound mixing device. On the basis, the second mobile terminal pulls the second far-end mobile terminal into the real-time conference through the dialing function, the first mobile terminal pulls the first far-end mobile terminal into the real-time conference through the dialing function, and the first far-end mobile terminal can also be pulled into the real-time conference through the communication software. The method realizes a real-time conference establishing mode of an old mobile phone and a new mobile phone, which is not available in the prior art.
As shown in fig. 4, the method for processing multi-channel audio mixing according to the present invention is applied to a mixing apparatus, and includes:
step S199, establishing a short-distance wired channel for transmitting the first audio information in the communication state with the first mobile terminal through the first audio data interface on the audio mixing apparatus;
or a short-distance wireless channel for transmitting the first audio information in the communication state is established with the first mobile terminal through a wireless connection port in the sound mixing device.
Step S200, receiving first audio information in a communication state sent by a first mobile terminal, wherein the first audio information is transmitted through a short-distance channel established with the first mobile terminal;
step S201, receiving second audio information in a communication state sent by a second mobile terminal, wherein the second audio information is transmitted through a short-distance channel established with the second mobile terminal;
step S202, performing sound mixing processing on the first audio information and the second audio information according to a preset first sound mixing selection strategy to form local sound mixing information;
the local audio information is one path of audio information which is output to a sound mixing module in the sound mixing device after the sound pickup module of the sound mixing device performs noise reduction on local conversation audio received by a microphone of the sound mixing device; the local conversation audio is a sound made by users who are in a local conference place, including an a-user of the first mobile terminal and a B-user of the second mobile terminal.
Step S203, the local audio mixing information is played out on site;
step S204, local audio information is acquired through a microphone;
step S205, performing audio mixing processing on the local audio information according to a preset first audio mixing selection policy to form far-end audio mixing information, and sending the far-end audio mixing information to the first mobile terminal and the second mobile terminal through the short-distance channel, so that the first mobile terminal outputs the far-end audio mixing information after receiving the far-end audio mixing information, and the second mobile terminal outputs the far-end audio mixing information after receiving the far-end audio mixing information.
In this embodiment, based on steps S204 and S205, that is, the method for processing multi-channel audio mixing in this application not only considers the multi-channel mixing processing of the local conference room, but also performs the multi-channel mixing processing for different remote conference rooms, so as to improve the quality of the external playing of different conference rooms based on the formed local mixing information, the first remote conference room mixing information, and the second remote conference room mixing information. (for the second far-end meeting place mixing sound information forming principle is the same as the first far-end meeting place mixing sound information forming principle, the difference lies in the output through different audio data interface, therefore no longer repeated description)
As shown in fig. 7, the live play-out of the local mixing information includes:
step S206, if a second selection instruction of the user is received, reselecting audio information to be subjected to audio mixing processing from the first audio information and the second audio information according to the second selection instruction, and performing audio mixing processing according to the audio information to be subjected to audio mixing processing to form new local audio mixing information;
the second selection instruction is triggered by a selection button or a touch screen of the user on the sound mixing device, and the second selection instruction is used for determining audio information to be subjected to next sound mixing processing based on the selection of the user (determining which audio needs to be subjected to sound mixing processing further so as to be convenient for a far-end user of the audio to perform next communication).
Step S207, the new local mixing information is played out on site.
In the above preferred embodiment, the setting is performed based on steps S206 and S207, so that after a round of on-site conference communication is completed by A, C users at the local conference place (it is considered that one of the far-end channels is completed and no further on-site communication is needed), based on a second selection instruction generated by the user A, C in step S206 triggering a selection button or a touch screen on the audio mixing apparatus, the audio information to be subjected to audio mixing processing is reselected by the second selection instruction, and audio mixing processing is performed according to the audio information to be subjected to audio mixing processing to form new local audio mixing information; thereby achieving a second multi-party communication.
As shown in fig. 5, a second aspect of the present invention provides a method for processing a multi-channel audio mix, which is applied in a first mobile terminal, and includes:
step S301, establishing a short-distance channel between the audio mixing device and the audio mixing device;
step S302, sending the first audio information in the communication state to the audio mixing device according to the short-distance channel, so that the audio mixing device performs audio mixing processing on the first audio information and the second audio information in the communication state from the second mobile terminal and then plays the audio information out on site.
Further, establishing a short-distance channel with the mixing apparatus includes:
establishing a short-distance wired channel for transmitting first audio information in a communication state with a first audio data interface on the audio mixing device;
or a short-distance wireless channel for transmitting the first audio information in the communication state is established with a wireless connection port in the sound mixing device.
As shown in fig. 6, after the establishing of the short distance channel with the mixing apparatus, the method includes:
step S301, receiving a selected remote object, wherein the remote object is an object selected by a user from prompt information displayed in a first mobile terminal;
in step S301, specifically: displaying prompt information in a display interface, and receiving a selected remote object based on the prompt information, wherein the prompt information comprises a contact list in an address list, which reaches a preset number of call processes within a preset time period; such as a contact that has reached at least 1 session in approximately 2 days.
Step S3011, sending a first communication request carrying a multi-path communication identifier to the remote object, where the first communication request is used to establish a communication state with the remote object;
in step S3011, the multi-channel communication identifier may be multi-channel communication voice information or multi-channel communication image information, so as to output corresponding multi-channel communication voice information or multi-channel communication image information when the first communication request reaches the remote object of the first remote mobile terminal; the voice message for prompting the remote object to agree with the communication path shows that the remote object is willing to participate in the multi-party communication (if the communication is inconvenient or privacy is involved, the remote object does not accept the first communication request), and the voice message plays a role in prompting and reminding.
Step S3012, if receiving a first response message of agreeing to multi-channel communication fed back by the remote object based on the first communication request, sending a first audio message in a communication state to the audio mixing device according to the short-distance channel, so that the audio mixing device performs audio mixing processing on the first audio message and a second audio message in a communication state from a second mobile terminal and then plays the audio information out on site.
As shown in fig. 8, a third aspect of the present invention provides a processing apparatus for multi-mixing, which is applied to a mixing apparatus 10, and includes:
a first receiving module 401, configured to receive first audio information in a communication state sent by a first mobile terminal, where the first audio information is transmitted through a short-distance channel established with the first mobile terminal, the first receiving module 401 may be a first audio data interface, and the first audio data interface may establish a wired connection or a wireless connection with the first mobile terminal;
a second receiving module 402, configured to receive second audio information in a communication state sent by a second mobile terminal, where the second audio information is transmitted through a short-distance channel established with the second mobile terminal, the second receiving module 402 may be a second audio data interface, and the second audio data interface may establish a wired connection or a wireless connection with the second mobile terminal;
a sound mixing module 403, configured to perform sound mixing processing on the first audio information and the second audio information according to a preset first sound mixing selection policy to form local sound mixing information;
a first play-out module 404, configured to play out the audio mixing information on site; the play-out module may be a play-out element mounted on the mixing apparatus 10.
The microphone is used for acquiring local sound at a local meeting place;
the echo cancellation module is used for carrying out echo cancellation processing on the local audio information acquired by the microphone;
and the noise reduction unit is used for executing noise reduction processing.
The first mixing selection policy in the mixing process of the mixing module 403 is:
wherein, AomRepresenting the mixing information output from the mth channel, bmRepresenting the output gain of the mth audio output, n representing the total number of audio mixing processes required by the audio mixing device, akRepresenting the gain of the kth audio input, k being an amount representing the number of channels in the mixing process; aikRepresenting the k-th audio information, amRepresenting the gain of the mth audio input, AimRepresenting the mth way of audio information.
More specifically: the mixing module 403 includes:
the first audio mixing unit is used for selecting audio information to be subjected to audio mixing processing from first audio information and second audio information according to a first selection instruction if the first selection instruction of a user is received, and performing audio mixing processing according to the audio information to be subjected to audio mixing processing to form local audio mixing information;
the second sound mixing unit is used for automatically mixing the first audio information and the second audio information to form local sound mixing information if a first selection instruction of a user is not received; when a first selection instruction of a user is not received, automatically determining the audio information to be subjected to audio mixing processing by the audio mixing device through the local audio information received by the microphone, the first audio information received by the first audio data interface and the second audio information received by the second audio data interface, then performing audio mixing processing on the audio information to be subjected to audio mixing processing to form local audio mixing information, and finally performing on-site play.
More specifically, the method further comprises the following steps:
the third receiving module is used for receiving local audio information in a communication state in a local conference place, wherein the local audio information is acquired by a microphone of the sound mixing device;
and the far-end sound mixing information generating module is used for carrying out sound mixing processing on the local audio information according to a preset first sound mixing selection strategy to form far-end sound mixing information, and sending the far-end sound mixing information to the first mobile terminal and the second mobile terminal through the short-distance channel respectively so that the first mobile terminal can output the far-end sound mixing information after receiving the far-end sound mixing information and the second mobile terminal can output the far-end sound mixing information after receiving the far-end sound mixing information.
More specifically, the method further comprises the following steps:
a second selection instruction receiving module, configured to reselect audio information to be subjected to audio mixing processing from the first audio information and the second audio information according to a second selection instruction if a second selection instruction of the user is received, and perform audio mixing processing according to the audio information to be subjected to audio mixing processing to form new local audio mixing information;
and the second play-out module is used for carrying out on-site play-out on the new local audio mixing information.
Fig. 9 is a block diagram of a mixing apparatus in a multi-party mixing processing apparatus according to an embodiment of the present invention. The mixing apparatus includes a memory 601, a processor 602, a bus 603, and a computer program stored on the memory 601 and executable on the processor 602; a first charging loop and a second charging loop are arranged in the signal processing unit, a first switch is arranged in the first charging loop, and a second switch is arranged in the second charging loop; the bus is used for realizing connection communication between the memory and the processor; the processor is configured to execute a computer program stored on the memory; when the processor executes the computer program, the steps of the processing method for multi-party sound mixing in the above embodiments are realized.
As shown in fig. 8, the mixing apparatus further includes a first receiving module 401, a second receiving module 402, a mixing module 403, a play-out module 404, a sound pickup module 405, and an echo cancellation module 406.
The first receiving module 401 represents a first audio data interface and the second receiving module 402 represents a second audio data interface.
The Memory 601 may be a high-speed Random Access Memory (RAM) Memory, or a non-volatile Memory (non-volatile Memory), such as a disk Memory. The memory 601 is used for storing executable program code, and the processor 602 is coupled with the memory 601.
Further, the present application also provides a computer-readable storage medium, which may be disposed in the electronic device in the foregoing embodiments, and the computer-readable storage medium may be the memory in the foregoing embodiment shown in fig. 9.
The computer-readable storage medium has stored thereon a computer program which, when executed by a processor, implements the state detection method in the foregoing embodiments. Further, the computer-readable storage medium may be various media that can store program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a RAM, a magnetic disk, or an optical disk.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of modules is merely a division of logical functions, and an actual implementation may have another division, for example, a plurality of modules or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
Modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present application may be integrated into one processing module, or each of the modules may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
The integrated module, if implemented in the form of a software functional module and sold or used as a separate product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a readable storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present application. And the aforementioned readable storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
It should be noted that, for the sake of simplicity, the above-mentioned method embodiments are described as a series of acts or combinations, but those skilled in the art should understand that the present application is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The invention also provides a device for processing multi-channel audio mixing, which is applied to the first mobile terminal and comprises the following components:
the first channel establishing module is used for establishing a short-distance channel between the first channel establishing module and the sound mixing device;
the first sending module is used for sending first audio information in a communication state to the sound mixing device according to the short-distance channel, so that the sound mixing device can conduct sound mixing processing on the first audio information and second audio information in the communication state from the second mobile terminal and then play the audio information outside the scene.
Further, the first channel establishing module includes:
the first wired establishing unit is used for establishing a short-distance wired channel for transmitting the first audio information in a communication state with a first audio data interface on the audio mixing device; or
The first wireless establishing unit is used for establishing a short-distance wireless channel for transmitting the first audio information in a communication state with a wireless connection port in the sound mixing device.
Further, still include:
a receive object module for receiving the selected remote object;
a sending request module, configured to send a first communication request carrying a multi-path communication identifier to the remote object, where the first communication request is used to establish a communication state with the remote object;
and the execution module is used for executing sending the first audio information in the communication state to the sound mixing device according to the short-distance channel if receiving first response information which is fed back by the remote object based on the first communication request and agrees with multi-channel communication, so that the sound mixing device carries out sound mixing processing on the first audio information and second audio information in the communication state from a second mobile terminal and then carries out on-site external playing.
Based on the first mobile terminal, the second mobile terminal and the sound mixing device, the first audio information and the second audio information respectively received by the first mobile terminal and the second mobile terminal are transmitted to the sound mixing device through the two independent and non-interfering close-range channels established by the three devices so as to be subjected to sound mixing processing and then played. Therefore, a first object for performing remote communication with the first mobile terminal, a second object for performing remote communication with the second mobile terminal and users of the double mobile terminals can quickly and conveniently realize multi-path communication. And the mode for realizing the multi-path communication is based on the application of the sound mixing device to carry out sound mixing, thereby helping a user to realize a cross-platform conference and eliminating the limitation on the platform used by an accessor.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A processing method of multi-channel audio mixing is applied to a mixing device, and is characterized by comprising the following steps:
receiving first audio information in a communication state sent by a first mobile terminal, wherein the first audio information is transmitted through a short-distance channel established with the first mobile terminal;
receiving second audio information in a communication state sent by a second mobile terminal, wherein the second audio information is transmitted through a short-distance channel established with the second mobile terminal;
performing sound mixing processing on the first audio information and the second audio information according to a preset first sound mixing selection strategy to form local sound mixing information;
and performing on-site play-out on the local sound mixing information.
2. The method for processing multi-channel audio mixing according to claim 1, wherein before the receiving the first audio information in the real-time communication status sent by the first mobile terminal, the method comprises:
establishing a short-distance wired channel for transmitting first audio information in a communication state with the first mobile terminal through a first audio data interface on the audio mixing device;
or a short-distance wireless channel for transmitting the first audio information in the communication state is established with the first mobile terminal through a wireless connection port in the sound mixing device.
3. The method for processing multi-channel audio mixing according to claim 1, wherein the first audio information in a communication state includes call audio transmission information in a call communication state associated with the first mobile terminal and/or conference audio transmission information in a conference communication state associated with the first mobile terminal.
4. The method of claim 1, wherein the first mixing selection strategy in the mixing process is
Wherein, AomRepresenting the mixing information output from the mth channel, bmRepresenting the output gain of the mth audio output, n representing the total number of audio mixing processes required by the audio mixing device, akRepresenting the gain of the kth audio input, k being an amount representing the number of channels in the mixing process; aikRepresenting the k-th audio information, amRepresenting the gain of the mth audio input, AimRepresenting the mth way of audio information.
5. The method for processing multi-channel audio mixing according to claim 1, wherein the mixing the first audio information and the second audio information according to a preset first mixing selection policy to form local mixing information specifically includes:
if a first selection instruction of a user is received, selecting audio information to be subjected to audio mixing processing from the first audio information and the second audio information according to the first selection instruction, and performing audio mixing processing according to the audio information to be subjected to audio mixing processing to form local audio mixing information;
and if the first selection instruction of the user is not received, automatically mixing the first audio information and the second audio information to form local mixing information.
6. The method for processing a multi-channel audio mix according to claim 1, further comprising the steps of:
receiving local audio information in a communication state in a local meeting place, wherein the local audio information is acquired by a microphone of the sound mixing device;
and carrying out sound mixing processing on the local audio information according to a preset first sound mixing selection strategy to form far-end sound mixing information, and respectively sending the far-end sound mixing information to the first mobile terminal and the second mobile terminal through the short-distance channel.
7. The method for processing multi-channel audio mixing according to claim 6, wherein after receiving the local audio information in the communication state in the local conference room, the method comprises:
and performing echo cancellation processing on the local audio information, performing audio mixing processing on the local audio information subjected to the echo cancellation processing according to a preset first audio mixing selection strategy to form far-end audio mixing information, and respectively sending the far-end audio mixing information to the first mobile terminal and the second mobile terminal through the short-distance channel.
8. The method for processing a multi-channel audio mix according to claim 1, wherein the step of performing live play-out of the local mix information comprises:
if a second selection instruction of the user is received, reselecting audio information to be subjected to audio mixing processing from the first audio information and the second audio information according to the second selection instruction, and performing audio mixing processing according to the audio information to be subjected to audio mixing processing to form new local audio mixing information;
and carrying out on-site playing-out on the new local mixing information.
9. A mixing apparatus, comprising a memory, a processor and a bus, wherein the bus is used for realizing connection communication between the memory and the processor, the processor is used for executing a computer program stored in the memory, and the processor realizes the steps of the method of any one of claims 1 to 8 when executing the computer program.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of processing a multi-audio mix according to any one of claims 1 to 8.
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