CN112312074B - Audio data output method and audio matrix - Google Patents
Audio data output method and audio matrix Download PDFInfo
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- CN112312074B CN112312074B CN201910710368.XA CN201910710368A CN112312074B CN 112312074 B CN112312074 B CN 112312074B CN 201910710368 A CN201910710368 A CN 201910710368A CN 112312074 B CN112312074 B CN 112312074B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
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Abstract
The embodiment of the invention provides an audio data output method and an audio matrix, wherein the audio matrix comprises a control board and a plurality of audio daughter boards, and the plurality of audio daughter boards comprise: the scheme includes that a control panel sends a target data transmission address to an audio input panel based on received configuration information, the audio input panel transmits the received audio data to an audio output panel after processing based on the target data transmission address, and the audio output panel outputs the received audio data.
Description
Technical Field
The present invention relates to the field of audio processing technologies, and in particular, to an audio data output method and an audio matrix.
Background
With the progress of social informatization, the demand of more and more industries and fields on video monitoring is greatly increased, the video monitoring extends from individual fields such as governments, banks, transportation and the like to multiple fields, the traditional security monitoring develops to management monitoring and production operation monitoring, and the monitoring scene becomes more and more complex.
For a complex monitoring scene, there are many different types of audio input sources and audio output sources, for example, a microphone, a local monitoring camera, a network camera, etc. are common audio input sources, and a speaker, a display, etc. are common audio output sources. Generally, according to the source and type of an audio input source, the audio input source can be divided into three types, namely an independent audio source, a local audio and video source and a network audio and video source, wherein the independent audio source is an audio source which only collects audio data but not video data, the local audio and video source is a local device which collects audio and video mixed streams, the collected audio and video data are only locally played and cannot be transmitted to a network, and the audio and video data collected by the network audio source are transmitted through the network.
In order to meet the monitoring requirement of a complex monitoring scene, an audio matrix is generally used for centralized processing of input audio input sources.
The inventor finds that the prior art at least has the following problems in the process of implementing the invention:
the existing audio matrix can only realize centralized processing on one type of audio input source, for example, the audio matrix which realizes centralized processing on a local audio/video source cannot process a network audio/video source, and therefore, an audio matrix which can realize processing on multiple types of audio input sources is urgently needed.
Disclosure of Invention
The embodiment of the invention aims to provide an audio data output method and an audio matrix so as to provide an audio matrix capable of realizing input and output of various types of audio input sources. The specific technical scheme is as follows:
the embodiment of the invention provides an audio data output method which is applied to an audio matrix, wherein the audio matrix comprises a control board and a plurality of audio daughter boards, and the plurality of audio daughter boards comprise: audio and video input board, audio and video input output board and audio input output board include:
the control board determines an audio daughter board for audio input configured by the configuration information from the multiple audio daughter boards as an audio input board and an audio daughter board for audio output as an audio output board based on the received configuration information;
the control board determines a data transmission address for transmitting audio data for the audio output board as a target data transmission address based on a preset corresponding relation between the data transmission address and the audio daughter board;
the control board sends the target data transmission address to the audio input board;
the audio input board transmits the received audio data to the audio output board after processing based on the target data transmission address;
the audio output board outputs the received audio data.
Further, the configuration information includes an audio input board identification and an audio output board identification;
the control board determines, among the plurality of audio daughter boards, an audio daughter board for audio input configured by the configuration information as an audio input board and an audio daughter board for audio output as an audio output board based on the received configuration information, including:
and the control board determines the audio daughter board identified by the audio input board identification as an audio input board and determines the audio daughter board identified by the audio output board identification as an audio output board in the multiple audio daughter boards based on the received audio input board identification and audio output board identification.
Further, before the audio input board transmits the processed audio data to the audio output board based on the target data transmission address, the method further includes:
the control board sends an on instruction to the audio input board and the audio output board to make the audio input board and the audio output board in an on state.
Further, the audio input board is the audio and video input board, and the audio and video input board is connected with a local audio and video source;
the audio input board transmits the received audio data to the audio output board after processing based on the target data transmission address, and the method comprises the following steps:
the audio/video input board receives local audio/video data input by the local audio/video source;
the audio/video input board separates local audio data from the local audio/video data;
and the audio and video input board transmits the local audio data to the audio output board according to the target data transmission address.
Further, the audio input board is the audio and video input and output board, and the audio and video input and output board is connected with a network audio and video source;
the audio input board transmits the received audio data to the audio output board after processing based on the target data transmission address, and the method comprises the following steps:
the audio/video input/output board receives network audio/video data input by the network audio/video source;
the audio/video input/output board decapsulates the network audio/video data to generate decapsulated audio/video data;
the audio/video input/output board separates network audio data from the audio/video data after the decapsulation;
and the audio and video input and output board transmits the network audio data to the audio output board according to the target data transmission address.
Further, the audio input board is the audio input/output board, and the audio input/output board is connected with an independent audio source;
the audio input board transmits the received audio data to the audio output board after processing based on the target data transmission address, and the method comprises the following steps:
the audio input/output board receives the independent audio signals input by the independent audio sources;
the audio input and output board performs analog-to-digital conversion on the independent audio signals to generate digital audio data;
and the audio input and output board transmits the digital audio data to the audio output board according to the target data transmission address.
Further, the audio output board is the audio input/output board;
the audio output board outputs the received audio data, including:
the audio input and output board performs digital-to-analog conversion on the audio data to generate an analog quantity audio signal;
and the audio input and output board outputs the analog quantity audio information.
Further, the audio input board and the audio output board are the same audio daughter board, wherein the audio daughter board does not include the audio/video input board.
The embodiment of the invention also provides an audio matrix, which comprises a control board and a plurality of audio daughter boards, wherein the plurality of audio daughter boards comprise: the audio/video input board, the audio/video input/output board and the audio input/output board;
the control board is used for determining an audio daughter board which is configured by the configuration information and used for audio input and serves as an audio input board and an audio daughter board which is configured by the configuration information and serves as an audio output board from the various audio daughter boards based on the received configuration information, determining a data transmission address which is used for transmitting audio data for the audio output board and serves as a target data transmission address based on the corresponding relation between a preset data transmission address and the audio daughter board, and sending the target data transmission address to the audio input board by the control board;
the audio input board is used for transmitting the received audio data to the audio output board after processing based on the target data transmission address;
and the audio output board is used for outputting the received audio data.
Further, the configuration information includes an audio input board identification and an audio output board identification;
the control board is specifically configured to determine, among the plurality of audio daughter boards, an audio daughter board identified by the audio input board identifier as an audio input board and determine an audio daughter board identified by the audio output board identifier as an audio output board based on the received audio input board identifier and audio output board identifier.
Further, the control board is further configured to send an on instruction to the audio input board and the audio output board, so that the audio input board and the audio output board are in an on state.
Further, the audio input board is the audio and video input board, and the audio and video input board is connected with a local audio and video source;
the audio input board is specifically configured to receive local audio and video data input by the local audio and video source, separate the local audio data from the local audio and video data, and transmit the local audio data to the audio output board according to the target data transmission address.
Further, the audio input board is the audio and video input and output board, and the audio and video input and output board is connected with a network audio and video source;
the audio input board is specifically configured to receive network audio and video data input by the network audio and video source, decapsulate the network audio and video data to generate decapsulated audio and video data, separate the network audio data from the decapsulated audio and video data, and transmit the network audio data to the audio output board according to the target data transmission address.
Further, the audio input board is the audio input/output board, and the audio input/output board is connected with an independent audio source;
the audio input board is specifically configured to receive an independent audio signal input by the independent audio source, perform analog-to-digital conversion on the independent audio signal to generate digital audio data, and transmit the digital audio data to the audio output board according to the target data transmission address.
Further, the audio output board is the audio input/output board;
and the audio output board is used for performing digital-to-analog conversion on the audio data to generate an analog audio signal and outputting the analog audio information.
Further, the audio input board and the audio output board are the same audio daughter board, wherein the audio daughter board does not include the audio/video input board.
The audio data output method and the audio matrix provided by the embodiment of the invention are applied to the audio matrix, the audio matrix comprises a control board and a plurality of audio daughter boards, wherein the plurality of audio daughter boards comprise: the scheme includes that a control panel determines an audio daughter board used for audio input and configured by configuration information in multiple audio daughter boards based on received configuration information, the audio daughter board is used as an audio input board, the audio daughter board is used for audio output and is used as an audio output board, a data transmission address used for transmitting audio data for the audio output board is determined based on a corresponding relation between a preset data transmission address and the audio daughter board and is used as a target data transmission address, the target data transmission address is sent to the audio input board, the audio input board transmits the received audio data to the audio output board after being processed based on the target data transmission address, and the audio output board outputs the received audio data.
Of course, not all of the advantages described above need to be achieved at the same time in the practice of any one product or method of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a flowchart of an audio data output method according to an embodiment of the present invention.
Fig. 2 is a flowchart of an audio data transmission method according to an embodiment of the present invention.
Fig. 3 is a flowchart of an audio data transmission method according to another embodiment of the present invention.
Fig. 4 is a flowchart of an audio data transmission method according to another embodiment of the present invention.
Fig. 5 is a schematic structural diagram of an audio matrix provided in an embodiment of the present invention.
Fig. 6 is a schematic diagram of an audio matrix according to an embodiment of the present invention.
Detailed Description
In order to provide an implementation scheme for implementing input and output of multiple types of audio data, the embodiment of the invention provides an audio data output method and an audio matrix, and the following describes the embodiment of the invention with reference to the drawings in the specification. And the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
In a complex monitoring scene, there are usually a plurality of different types of audio input sources and audio output sources, and an existing audio matrix can only process one type of audio and video input source, that is, can only realize input and output of one type of audio data.
In order to solve the above problem, an embodiment of the present application provides an audio data output method, which may be applied to an audio matrix, where the audio matrix further includes a control board and a plurality of audio daughter boards, where the plurality of audio daughter boards includes: the audio/video input/output board is connected with the audio/video input/output board.
For different types of input audio data, the audio data output method applied to the audio matrix provided by the embodiment of the application can determine the audio input board and the audio output board used for processing different types of audio data in each audio daughter board based on the configuration information received by the control board, so that the input and the output of the multiple types of audio data can be realized.
In one embodiment of the present invention, an audio data output method is provided, which is applied to an audio matrix, wherein the audio matrix comprises a control board and a plurality of audio daughter boards, and the plurality of audio daughter boards comprise: the audio/video input board, the audio/video input/output board and the audio input/output board.
The audio/video input board may be a DVI (Digital Visual Interface) video input board, the audio/video input/output board may be an HDMI (High Definition Multimedia Interface) video output board, and the audio input/output board may be provided with a plurality of audio input MIN _ DP interfaces and a plurality of audio output MIN _ DP interfaces.
As shown in fig. 1, the audio data output method includes the steps of:
s101: the control board determines, among the plurality of audio daughter boards, an audio daughter board for audio input configured by the configuration information as an audio input board, and an audio daughter board for audio output as an audio output board, based on the received configuration information.
In this step, the configuration information may be sent by the control end, the control end may be connected to the audio matrix in a wired/wireless communication manner, the control end may be configured with preset control software in advance, and the user may send the configuration information configured according to the user's own needs to the control panel through the control software.
In one embodiment, the configuration information may include an audio pad identifier, wherein the audio pad identifier may be feature information of an audio daughter board selected by a user through the control software for audio input, and optionally, may be an identification code of the audio daughter board, and may also be a communication address of the audio daughter board.
As understood by those skilled in the art, two types of board addresses are included in the audio matrix, which are a communication address and a data transmission address, respectively, where the communication address is address information for performing control information interaction between the control board and the audio daughter board in the audio matrix, for example, IP (Internet Protocol) addresses of the control board and the audio daughter board in the audio matrix, and through which the control board or the audio daughter board can determine an object to communicate with.
In one embodiment, when the audio input board is identified as the identification code of the audio daughter board, an index table may be established in advance, the index table records a corresponding relationship between the identification code of each audio daughter board and the communication address of the audio daughter board, the communication address of the audio daughter board is determined by the received identification code of the audio daughter board based on the corresponding relationship, and the audio daughter board with the determined communication address is used as the audio input board.
In one embodiment, when the audio input pad is identified as the communication address of the audio daughter board, the audio daughter board at which the communication address is located may be used as the audio input pad.
The audio output pad identification is similar to the audio input pad identification and will not be described in detail herein.
In one embodiment, each audio daughter board in the audio matrix may further include an input interface for inputting data and an output interface for outputting data, and further, the audio tablet identifier may further include an entry identifier for marking an interface in the audio daughter board for receiving data input and/or an exit identifier for marking an interface in the audio daughter board for receiving data input.
In one embodiment, an interface in the audio input pad for receiving audio-visual data and an interface for outputting audio-visual data may be determined based on the ingress information and the egress information.
Illustratively, the audio tablet has input interfaces X _1 and X _2 and output interfaces X _3 and X _4, and if the received audio tablet identifier has the identifiers of X _1 and X _3, then it can be determined that the interface X _1 of the audio tablet is used as an interface for inputting audio and video data, and the interface X _3 is used as an interface for outputting audio and video data.
In one embodiment, the audio input board and the audio output board are the same audio daughter board, wherein the audio daughter board does not include the audio input board, and illustratively, the audio input/output board may be used as either the audio input board or the audio output board, and the audio input/output board may be used as either the audio input board or the audio output board.
In an embodiment, the audio matrix may further include a switch board, where the switch board may be configured to connect the audio matrix and the control terminal, and the audio matrix may receive the configuration information sent by the control terminal through the switch board, and specifically, after receiving the configuration information sent by the control terminal, the switch board may send the received configuration information to the control board.
S102: and the control board determines a data transmission address for transmitting audio data for the audio output board as a target data transmission address based on the corresponding relation between the preset data transmission address and the audio sub-board.
In this step, the data transmission address may be address information for data interaction of each audio daughter board, for example, a PCIE (Peripheral Component Interconnect Express) address of each audio daughter board, as known to those skilled in the art, for each audio daughter board, there are a PCIE address of itself and a common PCIE address, where the PCIE address of itself is only used for data transmission of itself, and the common PCIE address may be used for data transmission of multiple audio daughter boards.
In an embodiment, the preset correspondence between the data transmission address and the audio daughter board may be a correspondence between the audio daughter board and its own PCIE address, or a correspondence between the audio daughter board and a common PCIE address.
S103: the control board sends the target data transfer address to the audio input board.
In this step, the control board may transmit the target data transfer address to the tablet via the communication address of the tablet.
In one embodiment, the control board may send an on indication to the audio input board and the audio output board to place the audio input board and the audio output board in an on state before performing this step.
The opening indication may be predetermined specific information, for example, a character string having a specific character arrangement order, where the opening indication may be the same or different for each type of audio daughter board.
In one embodiment, the on indication may be sent to the tablet and the daughterboard via an integrated communication bus within the audio matrix, and may illustratively be sent to the tablet and the daughterboard based on the communication addresses of the tablet and the daughterboard.
After the audio input board and the audio daughter board receive the opening indication, the audio input board and the audio daughter board are in an opening state, wherein the opening state can be that the audio daughter board and the audio daughter board are in a working state.
S104: and the audio input board transmits the received audio data to the audio output board after processing based on the target data transmission address.
In this step, the processing procedure of the received audio data is different according to different types of the audio input board, and will be described in detail later, which is not described herein again.
In one embodiment, the audio input board may transmit the received audio and video data input by the audio source to the target data transmission address, and the audio output board may obtain the audio data transmitted by the audio input board from the target data transmission address.
The audio source may be an independent audio source that converts a sound signal of the collection area into analog audio data, such as a microphone, which is directly connected to the audio input board through a data line, or a local audio source that collects audio and video information of the collection area, such as a monitoring camera, which is directly connected to the audio input board through a data line, or a network audio source that transmits audio and video data through the internet, such as a cloud monitoring camera, which is connected to the audio input and output board network.
S105: the audio output board outputs the received audio data.
In one embodiment, the audio output board may output the received audio data transmitted by the audio input board to an external playback device connected to the audio output board.
For example, the playing device may be a playing device with audio playing and video playing, such as a television, a computer, and the like, or may be a speaker device with only audio playing function, such as a sound box.
In one embodiment, the audio output board is an audio input/output board, and in this case, the audio input/output board performs digital-to-analog conversion on the audio data to generate an analog audio signal, and the audio input/output board outputs analog audio information.
As known to those skilled in the art, most of the audio input/output boards are connected to speakers with only an audio playing function, and at this time, the analog audio signals output by the audio input/output boards can be directly used by the speakers for playing.
The audio data output method applied to the audio matrix provided by the embodiment of the invention is applied to the audio matrix, wherein the audio matrix comprises a control board and a plurality of audio daughter boards, and the plurality of audio daughter boards comprise: the scheme includes that a control panel determines an audio daughter board used for audio input and configured by configuration information in multiple audio daughter boards based on received configuration information, the audio daughter board is used as an audio input board, the audio daughter board is used for audio output and is used as an audio output board, a data transmission address used for transmitting audio data for the audio output board is determined based on a corresponding relation between a preset data transmission address and the audio daughter board and is used as a target data transmission address, the target data transmission address is sent to the audio input board, the audio input board transmits the received audio data to the audio output board after being processed based on the target data transmission address, and the audio output board outputs the received audio data.
In another embodiment of the present invention, the audio input board is an audio/video input board, and the audio/video input board is connected to a local audio/video source, and at this time, an audio data transmission method is further provided, which is applied to the audio/video input board to implement the step S104, as shown in fig. 2, including:
s201: and receiving local audio and video data input by the local audio and video source.
In this step, the audio/video input board may be a DVI video board, which has a DVI interface and can receive local audio/video data input by a local audio/video source, wherein the local audio/video data input by the local audio/video source is mixed audio/video data including audio data and video data.
S202: and separating the local audio data from the local audio and video data.
In this step, the DVI video board encodes audio data in the input audio and video data to separate the audio data from the audio and video data.
S203: and transmitting the local audio data to the audio output board according to the target data transmission address.
In this step, the audio/video input board may send the local audio data to the target data transmission address, so that the audio output board may read the local audio data from the target data transmission address.
The audio data transmission method applied to the audio/video input board provided by the embodiment of the invention can receive local audio/video data input by a local audio/video source, separate the local audio data from the local audio/video data, and transmit the local audio data to the audio output board according to the target data transmission address.
In another embodiment of the present invention, the audio input board is an audio/video input/output board, and the audio/video input/output board is connected to a network audio/video source, at this time, another audio data transmission method is further provided, which is applied to the audio/video input/output board, so as to implement the step S104, as shown in fig. 3, including:
s301: and receiving network audio and video data input by the network audio and video source.
In this step, the audio/video input/output board may be an HDMI video board, wherein the HDMI video board may prepare a network interface for receiving network audio/video data input by the network audio/video source, and the network audio/video data input by the network audio/video source is mixed audio/video data including audio data and video data, and may further include an HDMI output interface.
S302: and decapsulating the network audio and video data to generate the decapsulated audio and video data.
In this step, the data transmitted through the network is the encapsulated data, and the received network audio and video data can be decapsulated to generate the decapsulated audio and video data.
S303: and separating the network audio data from the audio and video data after the decapsulation.
In this step, the HDMI video board may encode the audio data in the audio/video data to separate the audio data from the audio/video data.
S304: and transmitting the network audio data to the audio output board according to the target data transmission address.
In this step, the audio/video input board may send the network audio data to the target data transmission address, so that the audio output board may read the network audio data from the target data transmission address.
The audio data transmission method applied to the audio and video input and output board provided by the embodiment of the invention can receive network audio and video data input by a network audio and video source, decapsulate the network audio and video data to generate decapsulated audio and video data, separate the network audio data from the decapsulated audio and video data, and transmit the network audio data to the audio output board according to a target data transmission address.
In another embodiment of the present invention, the audio input board is an audio input/output board, and the audio input/output board is connected to an independent audio source, and in this case, another audio data transmission method is further provided and applied to the audio input/output board to implement the step S104, as shown in fig. 4, including:
s401: an independent audio signal of an independent audio source input is received.
In this step, the audio input/output board may be provided with a plurality of audio input MIN _ DP interfaces and a plurality of audio output MIN _ DP interfaces, and may receive independent audio signals input by independent audio sources, wherein the independent audio signals input by the independent audio sources include only audio signals, and wherein the audio information is audio data of analog quantities.
S402: the individual audio signals are analog-to-digital converted to generate digital audio data.
In this step, an analog-to-digital conversion function is provided, and received analog audio information is converted into digital audio data.
S403: and transmitting the digital audio data to the audio output board according to the target data transmission address.
In this step, the audio input/output board may send the digital audio data to the target data transmission address, so that the audio output board may read the digital audio data from the target data transmission address.
The audio data transmission method applied to the audio input/output board provided by the embodiment of the invention can receive the independent audio signals input by the independent audio source, perform analog-to-digital conversion on the independent audio signals to generate digital audio data, and transmit the digital audio data to the audio output board according to the target data transmission address.
Based on the same inventive concept, according to the audio data output method applied to the audio matrix provided by the embodiment of the present invention, an embodiment of the present invention further provides an audio matrix, as shown in fig. 5, including a control board 501 and a plurality of audio daughter boards, where the plurality of audio daughter boards include: an audio/video input board 502, an audio/video input/output board 503, and an audio input/output board 504;
a control board 501 for determining, among the plurality of audio daughter boards, an audio daughter board for audio input, as an audio input board, and an audio daughter board for audio output, as an audio output board, configured by the configuration information, based on the received configuration information, and determining, based on a preset correspondence relationship between a data transmission address and the audio daughter board, a data transmission address for transmitting audio data for the audio output board, as a target data transmission address, and the control board transmitting the target data transmission address to the audio input board;
the audio input board is used for transmitting the received audio data to the audio output board after processing based on the target data transmission address;
and the audio output board is used for outputting the received audio data.
Further, the configuration information includes an audio input board identification and an audio output board identification;
the control board 501 is specifically configured to determine, among the plurality of audio daughter boards, an audio daughter board identified by the audio input board identifier as an audio input board and an audio daughter board identified by the audio output board identifier as an audio output board based on the received audio input board identifier and audio output board identifier.
Further, the control board 501 is also used for sending an on instruction to the audio input board and the audio output board, so that the audio input board and the audio output board are in an on state.
Further, the audio input board is an audio and video input board 502, and the audio and video input board is connected with a local audio and video source;
the audio/video input board 502 is specifically configured to receive local audio/video data input by a local audio/video source, separate the local audio data from the local audio/video data, and transmit the local audio data to the audio output board according to a target data transmission address.
Further, the audio input board is an audio and video input and output board 503, and the audio and video input and output board is connected with a network audio and video source;
the audio/video input/output board 503 is specifically configured to receive network audio/video data input by the network audio/video source, decapsulate the network audio/video data to generate decapsulated audio/video data, separate the network audio data from the decapsulated audio/video data, and transmit the network audio data to the audio output board according to a target data transmission address.
Further, the audio input board is an audio input/output board 504, and the audio input/output board is connected with an independent audio source;
the audio input/output board 504 is specifically configured to receive the independent audio signals input by the independent audio sources, perform analog-to-digital conversion on the independent audio signals to generate digital audio data, and transmit the digital audio data to the audio output board according to the target data transmission address.
Further, the audio output board is an audio input/output board 504;
the audio output board output 504 is specifically configured to perform digital-to-analog conversion on the audio data to generate an analog audio signal, and output analog audio information.
Further, the audio input board and the audio output board are the same audio daughter board, wherein the audio daughter board does not include the audio/video input board.
As shown in fig. 6, a schematic diagram of an audio matrix combined with a practical use scenario is provided for an embodiment of the present invention, wherein the audio matrix includes a control board 601, an integrated communication bus 602, and a DVI video input board 603, an audio input output board 604, an HDMI video output board 605, and a switch board 606. Further, the switch board 606 is connected to the control terminal 607, the DVI video input board 603 is connected to the local image pickup device 608, the HDMI video output board 605 is connected to the network image pickup device 609, and further connected to the display 612 and the player 613, and the audio input/output board is connected to the microphone 610 and the speaker 611.
In one embodiment, when the DVI video input board 603, the HDMI video output board 605, and the audio input output board 604 are audio input boards:
the DVI video input board 603 can receive local audio and video source data input by the local camera 608, split the received local audio and video source data into local audio data and local video data, and simultaneously send the separated local audio data and local video data to an audio and video output board designated by the control board 601.
The HDMI video output board 605 can receive network audio and video source data input by the network camera 609, split the received network audio and video source data into network audio data and network video data, and simultaneously send the separated network audio data and network video data to the audio and video output board designated by the control board 601.
The audio input/output board 604 may receive the independent audio source data input from the microphone 610 and generate the received independent audio source data to the audio/video output board designated by the control board 601.
In one embodiment, the HDMI video output board 605 may receive audio data and video data occurring when the DVI video input board 603, the HDMI video output board 605, and the audio input output board 604 are audio and video input boards, and output the received audio data and video data to the display 612 and the player 613.
The audio input-output board 604 can receive audio data occurring when the DVI video input board 603, the HDMI video output board 605, and the audio input-output board 604 are audio-video input boards, and output the received audio data to the speaker 611.
In the above embodiments, all or part of the implementation may be realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, as for the apparatus, the electronic device, the computer-readable storage medium, and the computer program product, since they are substantially similar to the method embodiments, the description is simple, and the relevant points can be referred to the partial description of the method embodiments.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (16)
1. An audio data output method is applied to an audio matrix, wherein the audio matrix comprises a control board and a plurality of audio daughter boards, and the plurality of audio daughter boards comprise: audio frequency input board, audio frequency input output board and audio frequency input output board include:
the control board determines an audio daughter board for audio input configured by the configuration information from the multiple audio daughter boards as an audio input board and an audio daughter board for audio output as an audio output board based on the received configuration information;
the control board determines a data transmission address for transmitting audio data for the audio output board as a target data transmission address based on a preset corresponding relation between the data transmission address and the audio daughter board;
the control board sends the target data transmission address to the audio input board;
the audio input board transmits the received audio data to the audio output board after processing based on the target data transmission address;
the audio output board outputs the received audio data.
2. The method of claim 1, wherein the configuration information comprises an audio input board identification and an audio output board identification;
the control board determines, among the plurality of audio daughter boards, an audio daughter board for audio input configured by the configuration information as an audio input board and an audio daughter board for audio output as an audio output board based on the received configuration information, including:
the control board determines an audio daughter board identified by the audio input board identification as an audio input board and determines an audio daughter board identified by the audio output board identification as an audio output board among the plurality of audio daughter boards based on the received audio input board identification and audio output board identification.
3. The method of claim 2, wherein before the audio input board transmits the processed audio data to the audio output board based on the target data transmission address, further comprising:
the control board sends an on instruction to the audio input board and the audio output board to make the audio input board and the audio output board in an on state.
4. The method according to any of claims 1-3, wherein the audio input board is the audio-video input board, the audio-video input board being connected to a local audio-video source;
the audio input board transmits the received audio data to the audio output board after processing based on the target data transmission address, and the method comprises the following steps:
the audio/video input board receives local audio/video data input by the local audio/video source;
the audio/video input board separates local audio data from the local audio/video data;
and the audio and video input board transmits the local audio data to the audio output board according to the target data transmission address.
5. The method according to any one of claims 1-3, wherein the audio input board is the audio-video input-output board, and the audio-video input-output board is connected with a network audio-video source;
the audio input board transmits the received audio data to the audio output board after processing based on the target data transmission address, and the method comprises the following steps:
the audio and video input and output board receives network audio and video data input by the network audio and video source;
the audio/video input/output board decapsulates the network audio/video data to generate decapsulated audio/video data;
the audio/video input/output board separates network audio data from the audio/video data after the decapsulation;
and the audio and video input and output board transmits the network audio data to the audio output board according to the target data transmission address.
6. The method of any of claims 1-3, wherein the audio input board is the audio input output board, the audio input output board being connected to an independent audio source;
the audio input board transmits the received audio data to the audio output board after processing based on the target data transmission address, and the method comprises the following steps:
the audio input/output board receives independent audio signals input by the independent audio sources;
the audio input and output board performs analog-to-digital conversion on the independent audio signals to generate digital audio data;
and the audio input and output board transmits the digital audio data to the audio output board according to the target data transmission address.
7. The method of any of claims 1-3, wherein the audio output board is the audio input output board;
the audio output board outputs the received audio data, including:
the audio input and output board performs digital-to-analog conversion on the audio data to generate an analog quantity audio signal;
and the audio input and output board outputs the analog quantity audio information.
8. A method according to any of claims 1-3, wherein the audio input board and the audio output board are the same audio daughterboard, wherein the audio daughterboard does not comprise the audio video input board.
9. An audio matrix comprising a control board and a multiplicity of audio daughterboards, wherein the multiplicity of audio daughterboards comprises: the audio/video input board, the audio/video input/output board and the audio input/output board;
the control board is used for determining an audio daughter board which is configured by the configuration information and used for audio input and serves as an audio input board and an audio daughter board which is configured by the configuration information and serves as an audio output board from the various audio daughter boards based on the received configuration information, determining a data transmission address which is used for transmitting audio data for the audio output board and serves as a target data transmission address based on the corresponding relation between a preset data transmission address and the audio daughter board, and sending the target data transmission address to the audio input board by the control board;
the audio input board is used for transmitting the received audio data to the audio output board after processing based on the target data transmission address;
and the audio output board is used for outputting the received audio data.
10. The audio matrix of claim 9, wherein the configuration information comprises an audio input board identification and an audio output board identification;
the control board is specifically configured to determine, among the plurality of audio daughter boards, an audio daughter board identified by the audio input board identifier as an audio input board and determine an audio daughter board identified by the audio output board identifier as an audio output board based on the received audio input board identifier and audio output board identifier.
11. The audio matrix of claim 10, wherein the control board is further configured to send an on indication to the audio input board and the audio output board to place the audio input board and the audio output board in an on state.
12. The audio matrix of any of claims 9-11, wherein said audio input board is said audio video input board, said audio video input board being connected to a local audio video source;
the audio input board is specifically configured to receive local audio and video data input by the local audio and video source, separate the local audio data from the local audio and video data, and transmit the local audio data to the audio output board according to the target data transmission address.
13. The audio matrix according to any of claims 9 to 11, wherein the audio input board is the audio-video input-output board, and the audio-video input-output board is connected with a network audio-video source;
the audio input board is specifically configured to receive network audio and video data input by the network audio and video source, decapsulate the network audio and video data to generate decapsulated audio and video data, separate the network audio data from the decapsulated audio and video data, and transmit the network audio data to the audio output board according to the target data transmission address.
14. The audio matrix of any of claims 9-11, wherein the audio input board is the audio input output board, the audio input output board being connected to an independent audio source;
the audio input board is specifically configured to receive an independent audio signal input by the independent audio source, perform analog-to-digital conversion on the independent audio signal to generate digital audio data, and transmit the digital audio data to the audio output board according to the target data transmission address.
15. The audio matrix of any of claims 9-11, wherein the audio output pad is the audio input output pad;
and the audio output board is used for performing digital-to-analog conversion on the audio data to generate an analog audio signal and outputting the analog audio information.
16. The audio matrix of any of claims 9-11, wherein said audio input board and said audio output board are the same audio daughterboard, wherein the audio daughterboard does not include said audio video input board.
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| CN201422137Y (en) * | 2009-03-23 | 2010-03-10 | 上海金灿电子科技有限公司 | Matrix switcher |
| CN103037170B (en) * | 2011-10-10 | 2015-11-25 | 杭州海康威视数字技术股份有限公司 | Monitor video matrix system, network and cascade switching thereof, bandwidth adjusting method |
| CN104125375A (en) * | 2013-04-27 | 2014-10-29 | 深圳市载德光电技术开发有限公司 | Multimedia transmission matrix framework |
| CN103516961B (en) * | 2013-07-19 | 2016-09-07 | 北京淳中科技股份有限公司 | Image processor and preparation method thereof and master card |
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| US10236990B2 (en) * | 2014-09-18 | 2019-03-19 | Interdigital Ce Patent Holdings | Adding a keypad to a device configured with a wireless receiver |
| CN104506932B (en) * | 2014-12-04 | 2018-02-16 | 青岛歌尔声学科技有限公司 | A kind of audio transmission control system and control method |
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