33 results about "Audio coding format" patented technology

The invention discloses an audio data transmission method and device, and belongs to the field of data transmission. The audio data transmission method comprises the steps that a first strategy adjusting request transmitted by playing equipment is received, and the audio sampling frequency parameter and the audio coding format parameter included in the first strategy adjusting request are acquired; the sampling parameter of a microphone is adjusted according to the audio sampling frequency parameter, and the recording data are acquired through the microphone; audio mixing is performed on the recording data and accompaniment data so as to obtain the audio data; the audio data are coded according to the corresponding coding mode of the audio coding format parameter so as to obtain the audio data stream; and the audio data stream is transmitted to the playing equipment. The problems that the user cannot karaoke as the way he wants anytime and anywhere due to the fact that karaoke requires to be supported by a set of professional hardware equipment in the related technologies can be solved, and the effects that the hardware requirements required for karaoke can be reduced and the user is enabled to karaoke anytime and anywhere can be achieved.

The present invention provides method and device for transcoding between audio coding formats with different time-frequency analysis domains, as used for example by MPEG-AAC and mp3, particularly for facilitated and faster transcoding between such audio signals. A method for transcoding a framed audio signal from a first parameter domain into a second parameter domain comprises linearly transforming two or more parameters of the first parameter domain to at least one parameter of the second parameter domain, wherein the two or more parameters of the first parameter domain come from different frames of the audio signal in the first parameter domain. The linear transformation can be described as a matrix and implemented as a look-up table.

The invention discloses an information encoding method which is used for solving the technical problem that multiple types of information cannot be stored in a sound recording file in the prior art. The information encoding method comprises the following steps of acquiring specific information and an audio file which takes a code format as an audio encoding format, wherein a code format corresponding to the specific information is a specific encoding format, and the specific encoding format is different from the audio encoding format; adding the specific information into the audio file to obtain a mixed file, wherein the specific information is provided with a specific mark used for recognizing the specific information during decoding; encoding the mixed file in the audio encoding format so as to obtain a hybrid encoding file. The invention further discloses an information decoding method and corresponding electronic equipment.

The present disclosure discloses method, apparatus, and a terminal for playing multimedia content, and relates to the field of computer technologies. The method includes: identifying a video encoding format, an audio encoding format, and a file format of a multimedia file; detecting whether the video encoding format can be processed by a graphics processing unit; when the video encoding format cannot be processed by the GPU, playing the multimedia file by using an application program that can process the video encoding format through a central processing unit; when at least one of the audio encoding format and the file format cannot be processed by the GPU, transcoding the multimedia file from the at least one format into a corresponding format that can be processed by the GPU; and sending the transcoded multimedia file to the GPU, so that the GPU plays the multimedia file.

To improve qualities of audio and picture signals by distributing adaptively the code quantities of audio codes and picture codes and by adopting variable rate audio coding. The audio/picture processing apparatus handles audio presence information, audio characteristics information, audio quality information, picture quality information, code quantity distribution information, and line capacity information. A code quantity control means decides the distribution of the audio and picture codes, an audio coding format, and a coding rate, whereby the audio signal and picture signal are coded by a picture encoder and an audio encoder. The outputs from the picture encoder and the audio encoder are multiplexed by a multiplexer in order to transmit a multiplexed bit stream onto the network.

The invention discloses an audio data playing method and a device and solves a problem that an Android system player can not play M3U8 files in an AAC format. The method comprises steps that a request for downloading the audio data is sent to a server; multiple M3U8 fragment files sent by the server are received; an index address of a corresponding high-grade audio-coding-format AAC audio is recorded in the multiple M3U8 fragment files; an index address of an AAC audio data segment corresponding to each M3U8 fragment file is acquired through analyzing the multiple received M3U8 fragment files; according to the index addresses of the multiple M3U8 fragment files acquired through analysis, an AAC audio data segment stored in each index address is acquired; the acquired multiple AAC audio data segments are played in a data stream mode. The method is advantaged in that a client especially an Android system client is enabled to directly play audio streams, and strong compatibility is realized.

A network communication system comprises a user line interface circuit, a converter, a voice decoder, and a processing module, wherein the user line interface circuit is provided with a first interface for receiving an analogue signal and converting the analogue signal into digit signal to be output, the converter is connected with the first interface for receiving and converting the digit signal to meet interface format, the voice decoder is connected with the converter for receiving and coding the digit signal to meet voice code format, the processing module is connected with the voice decoder for receiving the digit signal and analyzing a network address indicated by the digit signal according to the voice code format, and transmitting the digit signal to a terminal at the network address, therefore, user can use indoor telephone via the network to process voice communication.

A method of providing audio information, said method comprising: (i) receiving audio filter settings in a client device; (ii) receiving audio data in the client device, wherein the received audio data is in an audio coding format; (iii) converting the audio filter settings to an audio filter signal in a processor of the client device, where the audio filter signal is a time-varying signal; (iv) converting the received audio data to an audio signal in a processor of the client device, where the audio signal is a time-varying signal; and (v) transmitting the converted audio filter signal and the converted audio signal from the client device to an audio output device, where the audio output device is separate from and in communication with the client device, and where the audio output device is configured for modifying the audio signal according to the audio filter signal to generate a time-varying audio output.

The invention discloses a method for mapping mobile phone audio data to an in-car entertainment (ICE) through embedded equipment, which comprises the following steps that: S1, a mobile phone is connected to the embedded equipment through a wireless communication module, and the embedded equipment is connected to an ICE central control system through a USB; S2, the mobile phone initiates a screenprojection function, and sends streaming media information to the embedded equipment through a mobile phone terminal processing module; S3, the embedded equipment codes the streaming media information; S4, the ICE central control system synchronously plays video and audio data through a display screen and a sound player, wherein the streaming media information comprises equipment port information, an equipment name, a video coding format, an audio coding format and streaming media processing mode information. According to the scheme, the problem that a user needs to use related functions of the mobile phone in the driving process is solved, the screen and sound of the mobile phone can be seamlessly mapped directly through the embedded equipment, frequent use of the mobile phone in the driving process is avoided, and safety risks are reduced.

The invention provides a data processing method and system, relates to the technical field of electronic information, and can solve the problem that a cloud server cannot flexibly adapt to a pluralityof terminal devices based on image transmission. According to the specific technical scheme, the method comprises the steps of: when the server detects that the terminal equipment logs in, obtainingequipment hardware information corresponding to terminal equipment, obtaining target negotiation information according to the equipment hardware information after negotiation processing with the terminal equipment, specifically obtaining the target negotiation information comprising obtaining a target collection resolution corresponding to the terminal equipment according to screen information inthe equipment hardware information; acquiring a target acquisition frame rate corresponding to the terminal equipment according to the acquisition resolution in the equipment hardware information andthe decoding information; and acquiring a target audio acquisition format according to the audio playing format information in the equipment hardware information, and acquiring a target audio coding format according to the audio decoding format information in the equipment hardware information. The present disclosure is for data processing.

The invention provides a method for adaptively selecting audio tracks, which comprises the following steps of: analyzing a transport stream to obtain an audio track information list, the audio track information at least comprising the number of audio tracks and an audio track audio coding format; acquiring audio coding format support information in the audio track information list; wherein the support information is acquired through a first interface; and selecting an audio track supported by an audio coding format in the audio track information list for playing. In addition, the invention further provides a device for adaptively selecting the audio tracks and a storage medium. According to the audio track self-adaptive selection method and device and the storage medium provided by the invention, the audio track number and the audio coding format of the audio track are obtained when the transport stream is analyzed, the audio track information list is obtained, the support information in the audio track information list is obtained through the first interface, and the audio track is selected for playing according to the support information. The problem that the audio cannot be played due to the audio coding format is avoided, the user experience is good, and the application range is wide.

The invention provides an audio decoding algorithm switching method and device, a storage medium and a terminal. The audio decoding algorithm switching method comprises the steps that the audio encoding format supported by a Bluetooth remote controller within the scanning range of a smart appliance is determined; the default audio decoding algorithm of the smart appliance is switched, so that theswitched default audio decoding algorithm matches the audio encoding format. According to the technical scheme provided by the invention, the audio decoding algorithm can be switched for the smart appliance to decode audio encoding formats supported by different Bluetooth remote controllers to adapt to different Bluetooth remote controllers; and different Bluetooth remote controllers can control the smart appliance through audio.

The invention discloses an audio playing method and device and a wireless earphone, and belongs to the technical field of wireless earphones. Wherein under the condition that the working mode of the wireless earphone is a first mode, if the first electric quantity of the wireless earphone is smaller than a preset threshold value, the working mode of the wireless earphone is switched to a second mode; or, if the wireless earphone receives the switching input, switching the working mode of the wireless earphone to a second mode, performing audio playing based on the second mode; wherein the audio coding format in the first mode is a first audio coding format, the audio coding format in the second mode is a second audio coding format, and the coding rate of the second audio coding format is smaller than that of the first audio coding format. The working mode of the wireless earphone is adjusted to adjust the audio encoding format of the audio, so that the encoding rate of the audio can be reduced, the power consumption is saved, and the service life of the wireless earphone is prolonged.

The invention discloses a video processing method and device, equipment and a readable storage medium. According to the method, a de-encapsulation library matched with an encapsulation format of video data is used according to the encapsulation format of the video data to be de-encapsulated, and the video data to be de-encapsulated are de-encapsulated to obtain de-encapsulated target audio data and target video data; after decapsulation, the audio coding format of the target audio data and the video coding format of the target video data can be identified; if the video coding format of the target audio data and the video data is an H.265 coding format, transmitting the target audio data to a decoder corresponding to the coding format of the target audio data and the video data for decoding; and after decoding, synchronously playing the decoded target audio data and target video data. According to the method, the video data with the coding format of H.265 can be played, and the limitation of playing the video data by the original video of the browser is effectively solved.

The invention discloses a streaming media data transcoding method, which is suitable for being completed in computing equipment and comprises the following steps of: receiving source streaming media data, demultiplexing a source streaming media data stream, and decomposing the source streaming media data stream into source audio data and source video data, the source audio data being in a first audio coding format; performing audio data processing on the source audio data to convert the source audio data into target audio data, wherein the target audio data is in a second audio coding format;performing video data processing on the source video data to obtain target video data; and multiplexing the target audio data and the target video data to obtain target streaming media data. The invention further discloses a corresponding streaming media data transcoding device, computing equipment and a readable storage medium.

The method for improving the performance of the chat room platform is characterized by comprising the following steps: determining the total audio and video resource processing capacity of a media server according to hardware resources on the media server; according to the mainstream video resolution, video coding format and audio coding format of the online chatting equipment, pre-creating a media resource pool containing corresponding media resources with different quantities in a threshold range of the processing capacity of a media server; when the user enters the chat room, enabling the media server to query a media resource pool, and acquiring required resources from the media resource pool according to audio and video formats transmitted and received by the user; and when the user leaves the chat room, enabling the media server to recycle the media resources occupied by the user and returning the media resources to the media resource pool. The method for improving the performance of the chat room platform is simple in implementation logic and easy to implement. The practicability is high, the effect is good, frequent creation and destruction of resources are avoided, and thestability and reliability are achieved.