CN113014998A - Audio output method, device, television and computer readable storage medium - Google Patents
Audio output method, device, television and computer readable storage medium Download PDFInfo
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- CN113014998A CN113014998A CN202110150235.9A CN202110150235A CN113014998A CN 113014998 A CN113014998 A CN 113014998A CN 202110150235 A CN202110150235 A CN 202110150235A CN 113014998 A CN113014998 A CN 113014998A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/439—Processing of audio elementary streams
- H04N21/4398—Processing of audio elementary streams involving reformatting operations of audio signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
- H04N5/602—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals for digital sound signals
Abstract
The invention discloses an audio output method, which is applied to a television, and comprises the following steps: when target program information is received, acquiring audio of the target program information; decoding the audio to obtain an output audio with a preset sound channel; and sending the output audio to external audio output equipment so that the external audio output equipment outputs the output audio. The invention also discloses an audio output device, a television and a computer readable storage medium. By using the audio output method, the delay of the external audio output equipment for outputting the audio is reduced, and the user experience is better.
Description
Technical Field
The present invention relates to the field of televisions, and in particular, to an audio output method and apparatus, a television, and a computer-readable storage medium.
Background
Two sound channel output is the general design mode of TV set, and loudspeaker integration is inside the TV set, nevertheless receives the restriction of TV set size, and loudspeaker distance in the TV set is nearer, and the sound field of TV set is not wide, leads to when the user uses the TV set, and the auditory effect is relatively poor.
Generally, a user may purchase an external audio output device (e.g., a sound box), the television outputs audio to the external audio output device, and the external audio output device outputs audio, so as to achieve a higher auditory effect.
However, when the user listens to the audio output by the television through the external speaker, the user experience is still poor.
Disclosure of Invention
The invention mainly aims to provide an audio output method, an audio output device, a television and a computer readable storage medium, and aims to solve the technical problem that in the prior art, when a user listens to audio output by the television by using an external sound box, the user experience is still poor.
In order to achieve the above object, the present invention provides an audio output method applied to a television, the method comprising the following steps:
when target program information is received, acquiring audio of the target program information;
decoding the audio to obtain an output audio with a preset sound channel;
and sending the output audio to external audio output equipment so that the external audio output equipment outputs the output audio.
Optionally, the decoding the audio to obtain an output audio with a preset channel includes:
decoding the audio to obtain initial audio having a same channel as the audio;
and mixing the initial audio into the output audio with the preset sound channel by utilizing a head function model and a matrix algorithm.
Optionally, the television has a built-in audio output device, the preset channels include multiple types, and the output audio includes multiple output audios corresponding to the multiple types of preset channels; after the step of decoding the audio to obtain the output audio with the preset channel, the method further comprises:
determining a first selected output audio corresponding to a first selected channel among the plurality of output audio, the first selected channel being extracted from the received first preset pattern;
outputting the first selected output audio with the built-in audio output;
the step of sending the output audio to an external audio output device so that the external audio output device outputs the output audio comprises:
and sending the output audios to external audio output equipment so that the external audio output equipment outputs the output audios.
Optionally, the step of sending the output audios to an external audio output device so that the external audio output device outputs the output audios includes:
and sending the plurality of output audios to external audio output equipment, so that the external audio output equipment determines a second selected output audio corresponding to a second selected channel in the plurality of output audios and outputs the second selected output audio, wherein the second selected channel is extracted from a received second preset mode.
Optionally, the television has a wireless transmitter; the step of sending the plurality of output audios to an external audio output device comprises:
sending the plurality of output audios to the wireless transmitter;
converting, by the wireless transmitter, the plurality of output audios into wireless audio signals;
and sending the wireless audio signal to an external audio output device through the wireless transmitter, so that the external audio output device determines the second selected output audio corresponding to the second selected channel in the wireless audio signal.
Optionally, the preset channel is a 5.1.2 channel or a 7.1 channel.
Optionally, the wireless transmitter is a wireless transmitter with a SWM908SD chip.
In addition, to achieve the above object, the present invention provides an audio output apparatus, which is applied to a television, the apparatus including:
the receiving module is used for acquiring the audio frequency of the target program information when the target program information is received;
the decoding module is used for decoding the audio to obtain output audio with a preset sound channel;
and the sending module is used for sending the output audio to external audio output equipment so that the external audio output equipment outputs the output audio.
In addition, to achieve the above object, the present invention further provides a television, including: a memory, a processor and an audio output program stored on the memory and running on the processor, the audio output program when executed by the processor implementing the steps of the audio output method as claimed in any one of the above.
Furthermore, to achieve the above object, the present invention also proposes a computer readable storage medium having stored thereon an audio output program which, when executed by a processor, implements the steps of the audio output method as described in any one of the above.
The technical scheme of the invention provides an audio output method which is applied to a television and comprises the following steps: when target program information is received, acquiring audio of the target program information; decoding the audio to obtain an output audio with a preset sound channel; and sending the output audio to external audio output equipment so that the external audio output equipment outputs the output audio.
In the existing audio output method, a television decodes audio to obtain decoded audio, an external audio output device decodes the decoded audio sent by the television to obtain new decoded audio and outputs the new decoded audio, and the external audio output device has more decoding of the audio, so that when the external audio output device outputs the audio, the delay is higher, and the user experience is poorer; in the invention, the television decodes the audio and obtains the decoded output audio, so that the external audio output equipment can directly output the received output audio without decoding the audio again by the external audio output equipment, thereby reducing the time delay. Therefore, the audio output method reduces the delay of the external audio output equipment for outputting the audio, and has better user experience.
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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a television in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating an audio output method according to a first embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a television and an external audio output device according to the present invention;
FIG. 4 is a block diagram of an audio output device according to a first 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
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a television set in a hardware operating environment according to an embodiment of the present invention.
Generally, a television set includes: at least one processor 301, a memory 302, and an audio output program stored on the memory and executable on the processor, the audio output program being configured to implement the steps of the audio output method as previously described.
The processor 301 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and so on. The processor 301 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 301 may also include a main processor and a coprocessor, where the main processor is a processor for processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 301 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content required to be displayed on the display screen. The processor 301 may further include an AI (Artificial Intelligence) processor for processing operations related to the audio output method so that the audio output method model can be trained and learned autonomously, improving efficiency and accuracy.
In some embodiments, the terminal may further include: a communication interface 303 and at least one peripheral device. The processor 301, the memory 302 and the communication interface 303 may be connected by a bus or signal lines. Various peripheral devices may be connected to communication interface 303 via a bus, signal line, or circuit board. Specifically, the peripheral device includes: at least one of radio frequency circuitry 304, a display screen 305, and a power source 306.
The communication interface 303 may be used to connect at least one peripheral device related to I/O (Input/Output) to the processor 301 and the memory 302. In some embodiments, processor 301, memory 302, and communication interface 303 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 301, the memory 302 and the communication interface 303 may be implemented on a single chip or circuit board, which is not limited in this embodiment.
The Radio Frequency circuit 304 is used for receiving and transmitting RF (Radio Frequency) signals, also called electromagnetic signals. The radio frequency circuitry 304 communicates with communication networks and other communication devices via electromagnetic signals. The rf circuit 304 converts an electrical signal into an electromagnetic signal to transmit, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 304 comprises: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a subscriber identity module card, and so forth. The radio frequency circuitry 304 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocols include, but are not limited to: metropolitan area networks, various generation mobile communication networks (2G, 3G, 4G, and 5G), Wireless local area networks, and/or WiFi (Wireless Fidelity) networks. In some embodiments, the rf circuit 304 may further include NFC (Near Field Communication) related circuits, which are not limited in this application.
The display screen 305 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. When the display screen 305 is a touch display screen, the display screen 305 also has the ability to capture touch signals on or over the surface of the display screen 305. The touch signal may be input to the processor 301 as a control signal for processing. At this point, the display screen 305 may also be used to provide virtual buttons and/or a virtual keyboard, also referred to as soft buttons and/or a soft keyboard. In some embodiments, the display screen 305 may be one, the front panel of the electronic device; in other embodiments, the display screens 305 may be at least two, respectively disposed on different surfaces of the electronic device or in a folded design; in still other embodiments, the display screen 305 may be a flexible display screen disposed on a curved surface or a folded surface of the electronic device. Even further, the display screen 305 may be arranged in a non-rectangular irregular figure, i.e. a shaped screen. The Display screen 305 may be made of LCD (liquid crystal Display), OLED (Organic Light-Emitting Diode), and the like.
The power supply 306 is used to power various components in the electronic device. The power source 306 may be alternating current, direct current, disposable or rechargeable. When the power source 306 includes a rechargeable battery, the rechargeable battery may support wired or wireless charging. The rechargeable battery may also be used to support fast charge technology.
Those skilled in the art will appreciate that the configuration shown in fig. 1 is not intended to be limiting of a television set and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, on which an audio output program is stored, and the audio output program, when executed by a processor, implements the steps of the audio output method as described above. Therefore, a detailed description thereof will be omitted. In addition, the beneficial effects of the same method are not described in detail. For technical details not disclosed in embodiments of the computer-readable storage medium referred to in the present application, reference is made to the description of embodiments of the method of the present application. It is determined that the program instructions may be deployed to be executed on one television, or on multiple televisions located at one site, or on multiple television devices distributed across multiple sites and interconnected by a communication network, as examples.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The computer-readable storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
Based on the above hardware structure, an embodiment of the audio output method of the present invention is provided.
Referring to fig. 2, fig. 2 is a schematic flowchart of a first embodiment of an audio output method according to the present invention, the method is applied to a television, and the method includes the following steps:
step S11: and when receiving the target program information, acquiring the audio frequency of the target program information.
It should be noted that, the television and the terminal device installed with the audio output program of the execution body of the present invention implement the audio output method of the present invention when the terminal device executes the audio output program.
Generally, a television set is internally provided with an audio output device, and the built-in audio output device of the television set can output audio of various sound channels; meanwhile, the system chip of the television (the chip for audio decoding) has multiple paths of I2S data, and preferably, the system chip of the television has 4 paths of I2S data.
The target program information may refer to program information that the television set is outputting, and the audio of the target program information is the audio. The audio is a part of the data in the target program information, and the audio output method only processes the audio in the data in the target program information.
Step S12: and decoding the audio to obtain output audio with a preset channel.
Specifically, step S12 includes: decoding the audio to obtain initial audio having a same channel as the audio; and mixing the initial audio into the output audio with the preset sound channel by utilizing a head function model and a matrix algorithm.
It should be noted that, in the audio output method of the present invention, the original audio (the audio) in the target television program needs to be decoded into the original audio (which may be data in PCM format) having the same channel as the original audio. Then, mixing the initial audio into the output audio with the preset sound channel by using a head function model and a matrix algorithm; wherein, the output audio of the preset channel may be output audio of 5.1.2 channels or 7.1 channels.
Specifically, the 5.1.2 channels include L/R (referring to left and right channels), Ls/Rs (referring to left and right surround channels), Lt/Rt (referring to top channel), C (referring to center channel), and Sub (referring to subwoofer channel); the 7.1 channels include their front left, front right, center, rear left, rear right, left and right surround channels. Embodiments of the present invention will be explained by taking 5.1.2 channels as examples.
Furthermore, the television set is provided with a built-in audio output device, the preset sound channels comprise a plurality of types, and the output audio comprises a plurality of output audios corresponding to the plurality of types of preset sound channels; after step S12, the method further includes:
determining a first selected output audio corresponding to a first selected channel among the plurality of output audio, the first selected channel being extracted from the received first preset pattern; outputting the first selected output audio with the built-in audio output.
It should be noted that, the television may support multiple sound channel outputs, a user sends a setting operation to the television according to a requirement, and the television obtains a first preset mode according to the setting operation of the user, where the first preset mode may be to output audio of one sound channel or to output audio of multiple sound channels, and the first preset mode is related to the setting operation of the user, which is not limited in the present invention.
When the first preset mode is a certain sound channel, determining one output audio corresponding to a first selected sound channel in the first preset mode, namely a first selected output audio, in a plurality of output audios corresponding to the plurality of preset sound channels; when the first preset mode is a plurality of channels, determining a plurality of output audios corresponding to a first selected channel in the first preset mode, namely a first selected output audio, among a plurality of output audios corresponding to the plurality of preset channels, and simultaneously outputting the first selected output audio including the plurality of audios.
For example, when the first preset mode of the television is the 2ch output mode, 2ch is output under the output audio of 5.1.2ch channels; when the first preset mode of the television is 5.1.2 mode, directly outputting 5.1.2 channels: left and right channels, left and right surround channels, a top channel, a center channel, and a subwoofer channel.
Step S13: and sending the output audio to external audio output equipment so that the external audio output equipment outputs the output audio.
The television sends the output audio with the preset sound channel to the external audio output equipment, and the external audio output equipment directly outputs the output audio without decoding the audio, so that the time delay is reduced, and the user experience is better.
Furthermore, the preset sound channels comprise a plurality of types, and the output audio comprises a plurality of output audios corresponding to the plurality of types of preset sound channels; step S13 includes: and sending the plurality of output audios to external audio output equipment, so that the external audio output equipment determines a second selected output audio corresponding to a second selected channel in the plurality of output audios and outputs the second selected output audio, wherein the second selected channel is extracted from a received second preset mode.
Specifically, the television is provided with a wireless transmitter; the step of sending the plurality of output audios to an external audio output device comprises: sending the plurality of output audios to the wireless transmitter; converting, by the wireless transmitter, the plurality of output audios into wireless audio signals; and sending the wireless audio signal to an external audio output device through the wireless transmitter, so that the external audio output device determines the second selected output audio corresponding to the second selected channel in the wireless audio signal.
It should be noted that the external audio output device may be any output device, such as a sound box, the sound box may be a wireless sound box (wifi or bluetooth, etc.), meanwhile, the television has a wireless transmitter, the wireless transmitter is a wireless transmitter with SWM908SD chip, and correspondingly, the external audio output device may have a wireless receiver with SWS997SD chip.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a television and an external audio output device according to the present invention. The television comprises a system chip, a wireless transmitter and a built-in audio output device; the system chip is used for decoding the audio to obtain output audio; the built-in audio output device is used for outputting the corresponding first selected output audio, and the wireless transmitter is used for converting the output audio into a wireless audio signal and transmitting the wireless audio signal to the external audio output device. The external audio output device is provided with a wireless receiver for receiving the wireless audio signal. The television is in communication connection with the external audio output device through the wireless transmitter and the wireless receiver, and wireless transmission of data is achieved.
The external audio output device can be internally provided with a power supply module, a control module, a wireless receiving module, a power amplifying module, an audio processing module and the like, and is provided with seven pairing keys of L, R, Ls, Rs, Lt, Rt and Sub. And obtaining a corresponding second preset mode according to different pairing keys activated by the user, and determining that the output sound channel is configured as the sound channel of the second selected output audio based on the second selected sound channel of the second preset mode.
The external audio output equipment has independent addresses, each address has a default sound channel, when the television enters the external audio output equipment pairing state, the television starts to search the equipment, a user can press the keys for about 3 seconds in sequence according to the description of the keys of the external audio output equipment to start the Bluetooth configuration state of the external audio output equipment, so that the external audio output equipment enters the pairing mode, and after the pairing is successful, the television configures the output modes of the I2S data according to the number and the addresses of the accessed external audio output equipment.
In addition, taking 5.1.2ch channels as an example, the system chip of the television has 4 channels of I2S data, which is used to divide the I2S data into four channels and send the four channels to the wireless transmitter, where the corresponding output audio is 4 output audio, and the wireless transmitter converts the 4 output audio into wireless audio signals, where the wireless audio signals include 4 output audio, and one output audio corresponds to one wireless audio signal.
In addition, the 4-way I2S data may include data transmitted by I2S0, I2S1, I2S2, and I2S3, respectively. The I2S0 is used for transmitting the first path of data (output audio), when 2ch is output, the output audio transmitted by the I2S0 can be an L/R channel, and when multi-channel output is performed, the output audio transmitted by the I2S0 can be a C/Sub channel; the I2S1 is used for transmitting the second output audio, no output is available in two channels, and the output audio transmitted by the I2S1 is used as an L/R channel in multi-channel output; the I2S2 is used for transmitting a third path of output audio, no output is generated in two channels, and the output audio transmitted by the I2S2 is used as an Ls/Rs channel in multi-channel output; the I2S3 is used for transmitting a fourth output audio, no output is available in two channels, and the output audio transmitted by the I2S3 is used as an Lt/Rt channel or an Lrs/Rrs channel in multi-channel output.
It can be understood that a plurality of output audios with a plurality of preset channels are respectively sent to the wireless transmitter, and the wireless transmitter simultaneously converts the output audios into wireless audio signals and simultaneously sends the wireless audio signals to the external audio output device, so that the external audio output device determines the second selected output audio corresponding to the second selected channel in the wireless audio signals.
The technical scheme of the invention provides an audio output method which is applied to a television and comprises the following steps: when target program information is received, acquiring audio of the target program information; decoding the audio to obtain an output audio with a preset sound channel; and sending the output audio to external audio output equipment so that the external audio output equipment outputs the output audio.
In the existing audio output method, a television decodes audio to obtain decoded audio, an external audio output device decodes the decoded audio sent by the television to obtain new decoded audio and outputs the new decoded audio, and the external audio output device has more decoding of the audio, so that when the external audio output device outputs the audio, the delay is higher, and the user experience is poorer; in the invention, the television decodes the audio and obtains the decoded output audio, so that the external audio output equipment can directly output the received output audio without decoding the audio again by the external audio output equipment, thereby reducing the time delay. Therefore, the audio output method reduces the delay of the external audio output equipment for outputting the audio, and has better user experience.
Referring to fig. 4, fig. 4 is a block diagram of a first embodiment of an audio output device according to the present invention, the device is applied to a television, and the device includes:
the receiving module 10 is configured to, when receiving target program information, obtain an audio of the target program information;
a decoding module 20, configured to decode the audio to obtain an output audio with a preset channel;
the sending module 30 is configured to send the output audio to an external audio output device, so that the external audio output device outputs the output audio.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An audio output method, applied to a television, the method comprising the steps of:
when target program information is received, acquiring audio of the target program information;
decoding the audio to obtain an output audio with a preset sound channel;
and sending the output audio to external audio output equipment so that the external audio output equipment outputs the output audio.
2. The method of claim 1, wherein the step of decoding the audio to obtain output audio having preset channels comprises:
decoding the audio to obtain initial audio having a same channel as the audio;
and mixing the initial audio into the output audio with the preset sound channel by utilizing a head function model and a matrix algorithm.
3. The method of claim 2, wherein the television has a built-in audio output device, the preset channels include a plurality of types, and the output audio includes a plurality of output audios corresponding to the plurality of types of preset channels; after the step of decoding the audio to obtain the output audio with the preset channel, the method further comprises:
determining a first selected output audio corresponding to a first selected channel among the plurality of output audio, the first selected channel being extracted from the received first preset pattern;
outputting the first selected output audio with the built-in audio output;
the step of sending the output audio to an external audio output device so that the external audio output device outputs the output audio comprises:
and sending the output audios to external audio output equipment so that the external audio output equipment outputs the output audios.
4. The method of claim 3, wherein the step of sending the plurality of output audios to an external audio output device to cause the external audio output device to output the plurality of output audios comprises:
and sending the plurality of output audios to external audio output equipment, so that the external audio output equipment determines a second selected output audio corresponding to a second selected channel in the plurality of output audios and outputs the second selected output audio, wherein the second selected channel is extracted from a received second preset mode.
5. The method of claim 4, wherein the television set has a wireless transmitter; the step of sending the plurality of output audios to an external audio output device comprises:
sending the plurality of output audios to the wireless transmitter;
converting, by the wireless transmitter, the plurality of output audios into wireless audio signals;
and sending the wireless audio signal to an external audio output device through the wireless transmitter, so that the external audio output device determines the second selected output audio corresponding to the second selected channel in the wireless audio signal.
6. The method of any one of claims 1-5, wherein the preset channel is a 5.1.2 channel or a 7.1 channel.
7. The method of claim 6, wherein the wireless transmitter is a wireless transmitter with a SWM908SD chip.
8. An audio output apparatus, applied to a television, the apparatus comprising:
the receiving module is used for acquiring the audio frequency of the target program information when the target program information is received;
the decoding module is used for decoding the audio to obtain output audio with a preset sound channel;
and the sending module is used for sending the output audio to external audio output equipment so that the external audio output equipment outputs the output audio.
9. A television set, characterized in that the television set comprises: memory, a processor and an audio output program stored on the memory and running on the processor, the audio output program when executed by the processor implementing the steps of the audio output method of any of claims 1 to 7.
10. A computer-readable storage medium, on which an audio output program is stored, which when executed by a processor implements the steps of the audio output method according to any one of claims 1 to 7.
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| Title |
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| 苗静: "基于STUN协议的智能音频播放系统的设计", 知网 * |
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|---|---|
| CN113014998B (en) | 2023-08-04 |
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