CN110830832A - Audio playing parameter configuration method of mobile terminal and related equipment - Google Patents
Audio playing parameter configuration method of mobile terminal and related equipment Download PDFInfo
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- CN110830832A CN110830832A CN201911053504.9A CN201911053504A CN110830832A CN 110830832 A CN110830832 A CN 110830832A CN 201911053504 A CN201911053504 A CN 201911053504A CN 110830832 A CN110830832 A CN 110830832A
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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
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4305—Synchronising client clock from received content stream, e.g. locking decoder clock with encoder clock, extraction of the PCR packets
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/16—Sound input; Sound output
- G06F3/165—Management of the audio stream, e.g. setting of volume, audio stream path
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10527—Audio or video recording; Data buffering arrangements
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/16—Storage of analogue signals in digital stores using an arrangement comprising analogue/digital [A/D] converters, digital memories and digital/analogue [D/A] converters
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10527—Audio or video recording; Data buffering arrangements
- G11B2020/10537—Audio or video recording
- G11B2020/10546—Audio or video recording specifically adapted for audio data
Abstract
The invention discloses an audio playing parameter configuration method of a mobile terminal and related equipment, and relates to the technical field of audio. The audio playing parameter configuration method of the mobile terminal comprises the steps of obtaining audio playing data and audio recording data of the mobile terminal; determining playing delay according to the audio playing data and the audio recording data; and configuring audio playing parameters of the mobile terminal according to the playing delay. The invention can provide a relatively reliable audio playing delay for the mobile terminal, and realizes the audio and video synchronization of the mobile terminal.
Description
Technical Field
The present invention relates to the field of audio technologies, and in particular, to an audio playing parameter configuration method for a mobile terminal and a related device.
Background
With the rapid development of the live broadcast technology, the short video technology is more and more widely applied. More and more users are demanding on the quality of the live and video viewed.
The audio and video synchronization is an important index in the video watching experience of a user. In order to ensure audio-video synchronization, the delay from the audio playing to the audio hearing of the user must be accurately predicted, so the estimation of the audio playing delay is very important. However, in different mobile terminals, such as different android phones, the audio playing device delays are different, which brings a problem to audio and video synchronization.
Disclosure of Invention
In view of this, embodiments of the present invention provide an audio playing parameter configuration method for a mobile terminal and related devices, so as to configure reliable audio playing parameters for the mobile terminal, thereby achieving the purpose of audio and video synchronization.
In a first aspect, an embodiment of the present invention provides an audio playing parameter configuration method for a mobile terminal, including: acquiring audio playing data and audio recording data of the mobile terminal; determining playing delay according to the audio playing data and the audio recording data; and configuring audio playing parameters of the mobile terminal according to the playing delay.
In a second aspect, an embodiment of the present invention further provides an apparatus for configuring audio playing parameters of a mobile terminal, including:
the audio data acquisition module is used for acquiring audio playing data and audio recording data of the mobile terminal;
the playing delay determining module is used for determining playing delay according to the audio playing data and the audio recording data;
and the playing parameter configuration module is used for configuring the audio playing parameters of the mobile terminal according to the playing delay.
In a third aspect, an embodiment of the present invention further provides an apparatus, including: a processor and a memory; the memory stores at least one instruction, and the instruction is executed by the processor, so that the device executes the audio playing parameter configuration method of the mobile terminal according to the first aspect.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, where instructions in the storage medium, when executed by a processor of a device, enable the device to perform the method for configuring audio playing parameters of a mobile terminal according to the first aspect.
By adopting the embodiment of the invention, after the audio playing data and the audio recording data of the mobile terminal are obtained, the playing delay can be determined according to the obtained audio playing data and the audio recording data, and then the audio playing parameters of the mobile terminal can be configured according to the playing delay, so that different audio playing devices and different playing systems can be compatible, a relatively reliable audio playing delay can be provided for the mobile terminal, the audio and video synchronization of the mobile terminal is more accurate, and the user experience is improved.
Drawings
Fig. 1 is a schematic flowchart illustrating steps of an audio playing parameter configuration method of a mobile terminal according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating steps of an audio playing parameter configuration method of a mobile terminal according to an alternative embodiment of the present invention;
fig. 3 is a flowchart illustrating steps of an audio playing parameter configuration method of a mobile terminal according to another alternative embodiment of the present invention;
fig. 4 is a schematic block diagram illustrating a configuration apparatus of an audio playing parameter configuration of a mobile terminal according to an embodiment of the present invention;
fig. 5 is a block diagram of the structure of an apparatus in one example of the invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures or components relevant to the present invention are shown in the drawings, not all of them.
Referring to fig. 1, a schematic flowchart illustrating steps of an audio playing parameter configuration method for a mobile terminal in an embodiment of the present invention is shown. The audio playing parameter configuration method of the mobile terminal specifically comprises the following steps:
and step 110, acquiring audio playing data and audio recording data of the mobile terminal.
In this embodiment, the audio playing data of the mobile terminal may refer to audio data of a playing end of the mobile terminal, may represent audio of the playing end of the mobile terminal, and specifically may include one or more audio blocks corresponding to the power spectrum, and in this embodiment, the audio blocks included in the audio playing data may be referred to as playing audio blocks. Similarly, the audio recording data may include one or more audio blocks corresponding to the power spectrum, and the audio blocks included in the audio recording data may be referred to as recorded audio blocks in this embodiment. The audio recording data may refer to audio data of a recording end of the mobile terminal, and may represent audio of the recording end of the mobile terminal, for example, the audio data may be recorded by an android mobile phone through a microphone.
Specifically, when a user uses the mobile terminal to record video and play audio, sound is transmitted through the air and recorded by a microphone of the mobile terminal, so that corresponding audio recording data is obtained. Therefore, in the process of recording and playing the audio by the mobile terminal, the audio data of the playing end of the mobile terminal can be acquired to be used as the audio playing data, and the audio data of the recording end of the mobile terminal can be acquired to be used as the audio recording data.
And step 120, determining the playing delay according to the audio playing data and the audio recording data.
Specifically, after the audio playing data and the audio recording data of the mobile terminal are obtained, the present embodiment may compare the audio playing data with the audio recording data, that is, compare the audio of the playing end of the mobile terminal with the audio of the current recording end of the mobile terminal, so as to determine each recorded audio block in the audio recording data and the playing audio block corresponding to each recorded audio block according to the comparison result. The played audio block corresponding to the recorded audio block and the recorded audio block have audio characteristic similarity points, for example, the recorded audio block and the played audio block corresponding thereto may have the same frequency domain power spectrum. The recorded audio block can represent the audio recorded by the mobile terminal in real time, and can represent the audio currently played by the mobile terminal to a certain extent. Therefore, in this embodiment, the buffer offset duration of the played audio block may be determined based on the offset position of the played audio block corresponding to the recorded audio block in the play buffer data, so as to determine the play delay of the mobile terminal based on the play offset duration.
Further, in this embodiment, determining the play delay according to the audio playing data and the audio recording data may specifically include: comparing the audio playing data with the audio recording data to obtain a comparison result; determining a recorded audio block and a played audio block corresponding to the recorded audio block according to the comparison result; and determining the playing delay based on the cache offset duration of the played audio block. Wherein, the buffer offset duration of the played audio block can represent the offset duration of the played audio block in the playing buffer data. It should be noted that the mobile terminal may buffer the audio data that needs to be played by the playing end, that is, store the audio data that needs to be played by the playing end into the buffer area to form playing buffer data, and then may play the audio based on the playing buffer data, so as to ensure smooth playing of the audio.
For example, audio playing data may be obtained from a buffer of the mobile terminal, and the audio playing data in the buffer may be divided according to a certain step length to obtain one or more playing audio blocks; similarly, the recorded audio data may be divided according to a certain step length to obtain recorded audio blocks having the same size as the played audio blocks, and then the power spectrum of each recorded audio block is compared with the power spectrum of each played audio block in the buffer area, so as to generate a comparison result, and thus the played audio block corresponding to each recorded audio block may be determined based on the comparison result, and if a played audio block having the same or similar power spectrum as a certain recorded audio block in the audio recorded data is found in the audio played data, the played audio block may be determined as the played audio block corresponding to the recorded audio block, and then the playing delay time of the audio playing device of the mobile terminal may be determined based on the offset duration of the played audio block corresponding to the recorded audio block in the playing buffer data.
And step 130, configuring audio playing parameters of the mobile terminal according to the playing delay.
In the actual processing, the audio playing device delay of the mobile terminal is related to the audio playing parameters set in the mobile terminal. Therefore, after the playing delay is determined, the embodiment of the invention can configure the audio playing parameters of the mobile terminal according to the playing delay so as to realize audio and video synchronization. The audio playing parameter may specifically include various audio playing delay parameter values, such as: a buffer threshold parameter, a hardware driving delay parameter, and/or a playing delay parameter, etc., which is not specifically limited in this embodiment. The cache threshold parameter may represent a minimum cache value required by a system playing Application Programming Interface (API) of the mobile terminal, so as to ensure smoothness of playing; the hardware drive delay parameter can represent the delay of playing bottom hardware drive of the mobile terminal; the playing delay parameter may represent the delay involved in the aspects of buffering, decoding, system calling and the like in the playing process of the mobile terminal.
To sum up, after the audio playing data and the audio recording data of the mobile terminal are acquired, the playing delay can be determined according to the acquired audio playing data and the acquired audio recording data, and then the audio playing parameters of the mobile terminal can be configured according to the playing delay, so that different audio playing devices and different playing systems can be compatible, a relatively reliable audio playing delay can be provided for the mobile terminal, and the audio and video synchronization of the mobile terminal is more accurate.
In the actual processing, the audio playing data and the audio recording data obtained in this embodiment are usually analog signal data, and after the audio playing data and the audio recording data are converted into frequency domain data, the frequency spectrum comparison is performed, so that the same or similar frequency spectrum characteristics of the audio playing data and the audio recording data are used as comparison results. Optionally, in this embodiment, comparing the audio playing data with the audio recording data to obtain a comparison result, which may specifically include: respectively carrying out Fourier transform on the audio playing data and the audio recording data to obtain playing audio frequency domain data and recording audio frequency domain data; and comparing the power spectrum of the played audio frequency domain data with the power spectrum of the recorded audio frequency domain data to obtain a target frequency domain power spectrum serving as the comparison result. The audio playing frequency domain data may include frequency domain data obtained by transforming the audio playing data; the recorded audio frequency domain data may include frequency domain data obtained by transforming audio recording data; the target frequency domain power spectrum may refer to a frequency domain power spectrum having the same or similar frequency domain power spectrum to the audio playing data and the audio recording data, and the frequency domain power spectrum may represent audio characteristic similarity points between the audio playing data and the audio recording data.
It should be noted that the frequency domain power spectrum may include audio power information and time information corresponding to the audio power, for example, the power spectrum of the audio playing data may include the audio playing power information of the audio playing data and time information corresponding to each audio playing power, and the time information corresponding to the audio playing power may indicate a time point at which the audio corresponding to the audio playing power is played; for another example, the power spectrum of the audio recording data may include audio recording power information of the audio recording data and time information corresponding to each audio recording power, and the time information corresponding to the audio recording power may indicate a time point at which the audio corresponding to the audio playing power is recorded.
After the target frequency domain power spectrum serving as the comparison result is obtained, the recorded audio block and the played audio block corresponding to the target frequency domain power spectrum may be determined according to the target frequency domain power spectrum, the played audio frequency domain data, and the recorded audio frequency domain data, so that the play delay may be determined according to the buffer offset duration of the played audio block in the following process. Further, the determining, according to the comparison result, a recorded audio block and a played audio block corresponding to the recorded audio block in this embodiment may include: extracting an audio block corresponding to the target frequency domain power spectrum from the recorded audio frequency domain data to serve as the recorded audio block; and extracting the audio block corresponding to the target frequency domain power spectrum from the played audio frequency domain data to be used as the played audio block corresponding to the recorded audio block.
In the actual processing, after the mobile terminal in the embodiment of the present invention is started, the mobile terminal may be connected to the server to obtain the initial playing parameter from the server, and then the audio playing parameter of the mobile terminal may be configured according to the obtained initial playing parameter to complete the initial configuration of the initial playing delay of the mobile terminal, so that the mobile terminal may perform audio playing according to the initially configured audio playing parameter. Optionally, before acquiring the audio playing data and the audio recording data of the mobile terminal in the embodiment of the present invention, the method may further include: receiving an initial playing parameter sent by a server; and setting the initial playing parameters as audio playing parameters of the mobile terminal.
After the playing delay is determined according to the audio playing data and the audio recording data of the mobile terminal, whether the audio playing parameter initially set in the mobile terminal needs to be modified in real time can be determined according to the audio playing delay parameter corresponding to the playing delay, so that a relatively reliable audio playing delay is provided for the mobile terminal, and the audio and video synchronization is more accurate. Optionally, in this embodiment, configuring the audio playing parameter of the mobile terminal according to the playing delay includes: determining an audio playing delay parameter corresponding to the playing delay; and when the audio playing delay parameter is inconsistent with the initial playing parameter, replacing the initial playing parameter with the audio playing delay parameter.
Referring to fig. 2, a flowchart illustrating steps of an audio playing parameter configuration method of a mobile terminal according to an alternative embodiment of the present invention is shown. The audio playing parameter configuration method of the mobile terminal can be applied to the mobile terminal, and specifically comprises the following steps:
In actual processing, a mobile terminal such as a smart phone, a tablet computer, or the like may establish a communication connection with a server through a network to communicate with the server based on the communication connection, such as transmitting data to the server, receiving data sent by the server, and the like.
Specifically, after establishing a communication connection with the server, the mobile terminal in this embodiment may receive the initial play parameter sent by the server based on the communication connection. The initial playing parameter may be used to set an audio playing delay, and specifically may include various parameters related to the audio playing delay, such as: at least one of the cache threshold parameter, the hardware driving delay parameter, and the playing delay parameter, which is not limited in this embodiment.
Specifically, after receiving the initial playing parameter sent by the server, the mobile terminal in this embodiment may set the initial playing parameter as an audio playing parameter, so that audio playing may be performed subsequently according to the audio playing parameter, thereby implementing an audio playing function of the mobile terminal.
In the embodiment of the invention, the mobile terminal can comprise a playing end and a recording end; the playing end can be used for playing audio according to audio playing data, such as a loudspeaker in a mobile terminal; the recording end may record audio to generate corresponding audio recording data, for example, the recording end may be a microphone in a mobile terminal, and the embodiment does not specifically limit this.
Optionally, the audio playing data in this embodiment may be audio data acquired at a playing end in the playing and recording processes of the mobile terminal, and the audio data may be cached in a cache area of the mobile terminal; the audio recording data may be audio data acquired at the recording end in the playing and recording processes of the mobile terminal. For example, while the user records a video and plays background music, the audio data of the playing end may be acquired in the buffer of the mobile terminal as audio playing data, and the audio data of the recording end may be acquired as audio recording data.
And 240, comparing the audio playing data with the audio recording data to obtain a comparison result.
In a specific implementation, after the audio playing data and the audio recording data are obtained, fourier transform may be performed on the audio playing data and the audio recording data, respectively, to obtain playing audio frequency domain data and recording audio frequency domain data, for example, Fast Fourier Transform (FFT) may be performed on the obtained audio playing data to obtain playing audio frequency domain data; similarly, FFT may be performed on the acquired audio recording data to obtain recorded audio frequency domain data.
Then, a power spectrum corresponding to the playing audio frequency domain may be calculated based on the playing audio frequency domain data, that is, a power spectrum of the playing audio frequency domain data is determined, a power spectrum corresponding to the recording audio frequency domain may be calculated based on the recording audio frequency domain data, that is, a power spectrum of the playing audio frequency domain data is determined, the power spectrum of the playing audio frequency domain data is compared with the power spectrum of the recording audio frequency domain data, that is, audio characteristic similarity points of the playing audio and the recording audio are found according to the frequency domain power spectrums, for example, the same or similar power spectrums of the playing audio frequency domain data and the recording audio frequency domain data are found, and the found same or similar power spectrums are determined as a target frequency domain power spectrum to be used as a comparison result.
And step 250, determining a recorded audio block and a playing audio block corresponding to the recorded audio block according to the comparison result.
Specifically, after the target frequency domain power spectrum is found, according to the target frequency domain power spectrum, the audio block corresponding to the target frequency domain power spectrum may be extracted from the recorded audio frequency domain data to serve as the recorded audio block, and the audio block corresponding to the target frequency domain power spectrum may be extracted from the played audio frequency domain data to serve as the played audio block corresponding to the recorded audio block, so that the played audio block and the recorded audio block with the highest audio feature matching value may be found according to the frequency domain power spectrum, and then step 260 may be executed according to the offset duration of the played audio block in the play cache data.
Specifically, in this embodiment, after determining the played audio block corresponding to the recorded audio block, the playing delay of the playing end of the mobile terminal may be determined according to the offset duration (i.e., the cache offset duration) of the played audio block in the playing cache data, for example, after calculating the offset duration of the played audio block corresponding to a certain recorded audio block in the playing cache data, the offset duration may be determined as the playing delay of the audio playing device of the mobile terminal; for another example, when the buffer offset durations of the played audio blocks corresponding to the plurality of recorded audio blocks in the mobile terminal are calculated, the average of the buffer offset durations may be statistically calculated to determine the playing delay of the audio playing device of the mobile terminal, and for example, the average of the buffer offset durations may be determined as the playing delay of the audio playing device of the mobile terminal, so as to improve the accuracy of the playing delay.
Specifically, after the playing delay of the current audio playing device is determined, the mobile terminal can determine an audio playing delay parameter required to be configured by the current audio playing device according to the playing delay, so that the mobile terminal can realize an audio playing function according to the audio playing delay parameter, the audio played by the audio playing device can be synchronized with a video picture played by the mobile terminal, and audio and video synchronization is realized.
Specifically, after determining the audio playing delay parameter corresponding to the playing delay, the embodiment may compare the audio playing delay parameter with the initial playing parameter set in the mobile terminal, so as to determine whether the audio playing delay parameter is consistent with the initial playing parameter set in the mobile terminal. If the audio playing delay parameter is consistent with the initial playing parameter set in the mobile terminal, it may be determined that the audio playing parameter of the mobile terminal does not need to be modified, and the audio playing delay parameter may be ignored, for example, the audio playing delay parameter may be deleted, which is not specifically limited in this embodiment. If the audio playing delay parameter is inconsistent with the initial playing parameter set in the mobile terminal, the audio playing delay parameter can be adopted to replace the initial playing parameter so as to set the audio playing delay parameter as the audio playing parameter of the mobile terminal, thereby achieving the purpose of providing a relatively reliable audio playing delay for the mobile terminal and enabling the audio and video synchronization to be more accurate.
Therefore, the audio playing parameter configuration method provided by the embodiment of the invention can be applied to the mobile terminal, so that the mobile terminal can determine the playing delay according to the obtained audio playing data and the audio recording data, and the mobile terminal can configure the audio playing parameters in real time according to the playing delay, thereby realizing audio and video synchronization and improving user experience.
Of course, the audio playing parameter configuration method provided by the embodiment of the present invention may also be applied to a server, so that the server may determine the playing delay of the mobile terminal according to the obtained audio playing data and audio recording data of the mobile terminal, so as to configure the audio playing parameter of the mobile terminal according to the playing delay, and implement audio and video synchronization of the mobile terminal.
Optionally, in a case that the method for configuring an audio playing parameter of a mobile terminal provided in the embodiment of the present invention is applied to a server, configuring the audio playing parameter of the mobile terminal according to the playing delay may specifically include: determining an audio playing delay parameter according to the playing delay; and sending the audio playing delay parameter to the mobile terminal so as to configure the audio playing delay parameter into an audio playing parameter of the mobile terminal.
Specifically, after determining the playing delay according to the audio playing data and the audio recording data of the mobile terminal, the server can determine the audio playing delay parameter which is required to be set correspondingly to the mobile terminal according to the playing delay, and can issue the audio playing delay parameter to the mobile terminal, so that the mobile terminal can receive the audio playing delay parameter, and further can set the audio playing delay parameter as the audio playing parameter of the mobile terminal, thereby providing a relatively reliable audio playing delay for the mobile terminal, realizing audio and video synchronization of the mobile terminal, and improving user experience.
Optionally, before sending the audio playing delay parameter to the mobile terminal, the server may further obtain an initial playing parameter according to the identification information of the mobile terminal, so as to determine whether the audio playing delay parameter is consistent with the initial playing parameter. If the audio playing delay parameter is inconsistent with the initial playing parameter, the step of sending the audio playing delay parameter to the mobile terminal can be executed, so that the mobile terminal can be triggered to replace the initial playing parameter with the audio playing delay parameter, the audio playing delay parameter is set as the audio playing parameter of the mobile terminal, the purpose of providing a relatively reliable audio playing delay for the mobile terminal is achieved, and audio and video synchronization is more accurate. If the audio playing delay parameter is consistent with the initial playing parameter, it may be determined that the audio playing parameter of the mobile terminal does not need to be modified, and the audio playing delay parameter may be ignored, for example, the audio playing delay parameter may be deleted, the audio playing delay parameter is not sent to the mobile terminal, and the like.
The initial playing parameter can be determined by the server according to the historical audio playing data and the historical audio recording data of the mobile terminal, and the determined initial playing parameter can be stored in association with the identification information of the mobile terminal, so that the initial playing parameter of the mobile terminal can be searched according to the identification information of the mobile terminal when being searched, and the efficiency of searching the initial playing parameter of the mobile terminal can be improved.
Further, before acquiring the audio playing data and the audio recording data of the mobile terminal, the embodiment of the present invention further includes: acquiring identification information of the mobile terminal; and sending the initial playing parameter corresponding to the identification information to the mobile terminal so as to trigger the mobile terminal to set the initial playing parameter as an audio playing parameter.
Referring to fig. 3, a flowchart illustrating steps of an audio playing parameter configuration method of a mobile terminal according to another alternative embodiment of the present invention is shown. The audio playing parameter configuration method of the mobile terminal can be applied to a server, and specifically comprises the following steps:
In this embodiment, the identification information of the mobile terminal may be used for information related to audio playing delay in the mobile terminal, such as determining a model, a playing device, and/or a playing system of the mobile terminal. For example, the identification information of the mobile terminal may be a model of a mobile phone, which is not limited in this embodiment.
And step 320, sending the initial playing parameters corresponding to the identification information to the mobile terminal.
Specifically, in this embodiment, after the identification information of the mobile terminal is obtained, an initial playing parameter preset for the identification information may be obtained according to the identification information, and the initial playing parameter may be sent to the mobile terminal, so that the mobile terminal may receive the initial playing parameter. After receiving the initial playing parameter, the mobile terminal may set the initial playing parameter to an audio playing parameter.
As an example of the present invention, when the obtained identification information of the mobile terminal is a model of a mobile phone, a model of the mobile terminal may be determined according to the model of the mobile phone, and then a playback device and a playback system of the mobile device may be determined based on the model of the mobile terminal, and further initial playback parameters that are set in advance for the model, the playback device, and the playback system of the mobile terminal may be obtained based on the model, the playback device, and the playback system of the mobile terminal, and the initial playback parameters may be sent to the mobile terminal as default values of the mobile terminal, so that the mobile terminal may set the initial playback parameters as audio playback parameters. The obtained initial playing parameter may include various parameters that are set by the server in advance for the identification information of the mobile terminal, for example, the initial playing parameter may include any one or more of a cache threshold parameter, a hardware driving delay parameter, a playing delay parameter, and the like, which is not limited in this example.
And step 330, acquiring audio playing data and audio recording data of the mobile terminal.
Specifically, after acquiring audio playing data and audio recording data of the mobile terminal, the server in this embodiment may perform Fourier Transform on the audio playing data and the audio recording data, respectively, to obtain playing audio frequency domain data and recording audio frequency domain data, and for example, may perform Fast Fourier Transform (FFT) on the acquired audio playing data to obtain playing audio frequency domain data; similarly, FFT may be performed on the acquired audio recording data to obtain recorded audio frequency domain data. And then, comparing the power spectrum of the played audio frequency domain data with the power spectrum of the recorded audio frequency domain data, namely searching audio characteristic similar points of the played audio and the recorded audio according to the frequency domain power spectrums, for example, searching the same or similar power spectrums of the played audio frequency domain data and the recorded audio frequency domain data, and determining the found same or similar power spectrums as a target frequency domain power spectrum to serve as a comparison result.
And step 350, determining a recorded audio block and a playing audio block corresponding to the recorded audio block according to the comparison result.
Specifically, after finding the target frequency domain power spectrum, the server in this embodiment may extract, according to the target frequency domain power spectrum, the audio block corresponding to the target frequency domain power spectrum from the recorded audio frequency domain data to serve as the recorded audio block, and may extract, from the played audio frequency domain data, the audio block corresponding to the target frequency domain power spectrum to serve as the played audio block corresponding to the recorded audio block, so that the recorded audio block and the played audio block with the highest audio feature matching value may be found according to the frequency domain power spectrum, that is, the recorded audio block and the played audio block corresponding to the recorded audio block are determined, and then step 360 may be executed according to the cache offset duration of the played audio block.
And step 360, determining the playing delay based on the cache offset duration of the played audio block.
Specifically, after obtaining the played audio block corresponding to the recorded audio block, the server in this embodiment may calculate an offset value between the played audio block and the beginning of the playing cache data according to the time information of the played audio block, and may use the offset value as the cache offset duration of the played audio block, so as to determine the playing delay of the audio playing device of the mobile terminal based on the cache offset duration of the played audio block, so as to improve the accuracy of the playing delay.
Specifically, after determining the playing delay according to the obtained audio playing data and audio recording data of the mobile terminal, the server in this embodiment may determine an audio playing delay parameter that needs to be configured currently by the playing device of the mobile terminal according to the playing delay, and then may execute step 380.
In this embodiment, after determining the audio playing delay parameter, the server may compare the audio playing delay parameter with a preset initial playing parameter corresponding to the mobile terminal, so as to determine whether the audio playing delay parameter is consistent with the preset initial playing parameter. If the audio playing delay parameter is consistent with the preset initial playing parameter, it can be determined that the audio playing parameter of the mobile terminal does not need to be modified, and the audio playing delay parameter can be ignored, if the audio playing delay parameter can not be sent to the mobile terminal, so that the data transmission quantity is reduced, and the network resources are saved. If the audio playing delay parameter is not consistent with the initial playing parameter, step 390 may be executed.
In this embodiment, after determining that the audio playing delay parameter is inconsistent with the initial playing parameter, the server may send the audio playing delay parameter to the mobile terminal, so as to trigger the mobile terminal to replace the preset initial playing parameter with the audio playing delay parameter, that is, set the audio playing delay parameter as the audio playing parameter of the mobile terminal, thereby achieving a purpose of providing a relatively reliable audio playing delay for the mobile terminal, and enabling audio and video synchronization to be more accurate.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention.
Referring to fig. 4, a schematic block diagram of a structure of an audio playing parameter configuration apparatus of a mobile terminal in an embodiment of the present invention is shown, where the audio playing parameter configuration apparatus of the mobile terminal may specifically include the following modules:
an audio data obtaining module 410, configured to obtain audio playing data and audio recording data of the mobile terminal;
a play delay determining module 420, configured to determine a play delay according to the audio play data and the audio recording data;
a playing parameter configuration module 430, configured to configure an audio playing parameter of the mobile terminal according to the playing delay.
On the basis of the foregoing embodiment, optionally, the play delay determining module 420 may include the following sub-modules:
the comparison submodule is used for comparing the audio playing data with the audio recording data to obtain a comparison result;
the audio block determining submodule is used for determining a recorded audio block and a played audio block corresponding to the recorded audio block according to the comparison result;
and the playing delay determining submodule determines the playing delay based on the cache offset duration of the playing audio block.
Optionally, the comparison sub-module may include the following units:
the transformation unit is used for respectively carrying out Fourier transformation on the audio playing data and the audio recording data to obtain playing audio frequency domain data and recording audio frequency domain data;
and the comparison unit is used for comparing the power spectrum of the played audio frequency domain data with the power spectrum of the recorded audio frequency domain data to obtain a target frequency domain power spectrum serving as the comparison result.
The audio block determination submodule may include the following units:
a recording audio block unit, configured to extract an audio block corresponding to the target frequency domain power spectrum from the recorded audio frequency domain data, so as to serve as the recorded audio block;
and the playing audio block unit is used for extracting the audio block corresponding to the target frequency domain power spectrum from the playing audio frequency domain data to be used as the playing audio block corresponding to the recorded audio block. In an optional embodiment of the present invention, optionally, the audio playing parameter configuration apparatus may be applied to a mobile terminal, and the audio playing parameter configuration apparatus may further include the following modules: the device comprises an initial playing parameter receiving module and an audio playing parameter setting module. The initial playing parameter receiving module is configured to receive an initial playing parameter sent by a server, and for example, may be specifically configured to receive the initial playing parameter sent by the server before the audio data obtaining module 410 obtains the audio playing data and the audio recording data of the mobile terminal. The audio playing parameter setting module may be configured to set the initial playing parameter as an audio playing parameter of the mobile terminal.
Optionally, the playing parameter configuration module 430 may include the following sub-modules:
the delay parameter determining submodule is used for determining an audio playing delay parameter corresponding to the playing delay;
and the parameter replacement submodule is used for replacing the initial playing parameter by the audio playing delay parameter when the audio playing delay parameter is inconsistent with the initial playing parameter.
In another optional embodiment of the present invention, the apparatus for configuring audio playing parameters of a mobile terminal is applied to a server. The playing parameter configuration module 430 may include the following sub-modules:
the parameter determining submodule is used for determining an audio playing delay parameter according to the playing delay;
and the parameter sending submodule is used for sending the audio playing delay parameter to the mobile terminal so as to configure the audio playing delay parameter into the audio playing parameter of the mobile terminal.
On the basis of the foregoing embodiment, optionally, the apparatus for configuring audio playing parameters of a mobile terminal may further include the following modules:
an initial playing parameter obtaining module, configured to obtain an initial playing parameter according to the identification information of the mobile terminal, and for example, before the parameter sending sub-module sends the audio playing delay parameter to the mobile terminal, obtain the initial playing parameter according to the identification information of the mobile terminal;
the parameter judging module is used for judging whether the initial playing parameter is consistent with the audio playing delay parameter or not; and if the initial playing parameter is inconsistent with the audio playing delay parameter, triggering the parameter sending submodule to execute the step of sending the audio playing delay parameter to the mobile terminal.
Optionally, the apparatus for configuring audio playing parameters of a mobile terminal may further include the following modules:
the identification information acquisition module is used for acquiring identification information of the mobile terminal, for example, the identification information acquisition module is specifically used for acquiring the identification information of the mobile terminal before the audio data acquisition module acquires audio playing data and audio recording data of the mobile terminal;
and the initial playing parameter sending module is used for sending the preset initial playing parameter corresponding to the identification information to the mobile terminal so as to trigger the mobile terminal to set the initial playing parameter as an audio playing parameter.
On the basis of the foregoing embodiment, optionally, the mobile terminal may include a playing end and a recording end, where the audio playing data is audio data acquired at the playing end in the playing and recording processes of the mobile terminal, and the audio recording data is audio data acquired at the recording end in the playing and recording processes of the mobile terminal; the audio playing parameters include at least one of: a caching threshold parameter, a hardware drive delay parameter and a play delay parameter.
It should be noted that the audio playing parameter configuration device of the mobile terminal provided above can execute the audio playing parameter configuration method of the mobile terminal provided in any embodiment of the present invention, and has corresponding functions and beneficial effects of the execution method.
In a specific implementation, the audio playing parameter configuration apparatus of the mobile terminal may be integrated in a device or an application installed in the device. The device may be formed by two or more physical entities, or may be formed by one physical entity, for example, the device may be a PC, a computer, a mobile phone, a tablet device, a personal digital assistant, a game console, a server, or the like.
Further, an embodiment of the present invention further provides an apparatus, including: a processor and a memory. At least one instruction is stored in the memory, and the instruction is executed by the processor, so that the device executes the audio playing parameter configuration method of the mobile terminal in the embodiment of the method.
Referring to fig. 5, a schematic diagram of the structure of an apparatus in one example of the invention is shown. As shown in fig. 5, the apparatus may specifically include: a processor 50, a memory 51, a display 52 with touch functionality, an input device 53, an output device 54 and a communication device 55. The number of processors 50 in the device may be one or more, and one processor 50 is taken as an example in fig. 5. The number of the memory 51 in the device may be one or more, and one memory 51 is taken as an example in fig. 5. The processor 50, the memory 51, the display 52, the input means 53, the output means 54 and the communication means 55 of the device may be connected by a bus or other means, as exemplified by the bus connection in fig. 5.
The memory 51 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the audio playing parameter configuring method of the mobile terminal according to any embodiment of the present invention (for example, the audio data obtaining module 410, the playing delay determining module 420, and the playing parameter configuring module 430 in the audio playing parameter configuring apparatus of the mobile terminal). The memory 51 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating device, an application program required for at least one function; the storage data area may store data created according to use of the device, and the like. Further, the memory 51 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 51 may further include memory located remotely from the processor 50, which may be connected to the device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The display screen 52 is a display screen 52 with a touch function, which may be a capacitive screen, an electromagnetic screen, or an infrared screen. In general, the display screen 52 is used for displaying data according to instructions from the processor 50, and is also used for receiving touch operations applied to the display screen 52 and sending corresponding signals to the processor 50 or other devices. Optionally, when the display screen 52 is an infrared screen, the display screen further includes an infrared touch frame, and the infrared touch frame is disposed around the display screen 52, and may also be configured to receive an infrared signal and send the infrared signal to the processor 50 or other devices.
The communication device 55 is used for establishing a communication connection with other devices, and may be a wired communication device and/or a wireless communication device.
The input device 53 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the apparatus, and may also be a camera for acquiring images and a sound pickup apparatus for acquiring audio data. The output device 54 may include an audio device such as a speaker. It should be noted that the specific composition of the input device 53 and the output device 54 may be set according to actual conditions.
The processor 50 executes various functional applications and data processing of the device by running software programs, instructions and modules stored in the memory 51, that is, implements the above-mentioned audio playing parameter configuration method of the mobile terminal.
An embodiment of the present invention further provides a computer-readable storage medium, where instructions in the storage medium, when executed by a processor of a device, enable the device to perform the method for configuring audio playing parameters of a mobile terminal according to the above method embodiment. Illustratively, the method for configuring the audio playing parameters of the mobile terminal comprises the following steps: acquiring audio playing data and audio recording data of the mobile terminal; determining playing delay according to the audio playing data and the audio recording data; and configuring audio playing parameters of the mobile terminal according to the playing delay.
It should be noted that, as for the embodiments of the apparatus, the device, and the storage medium, since they are basically similar to the embodiments of the method, the description is relatively simple, and in relevant places, reference may be made to the partial description of the embodiments of the method.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solution of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk, or an optical disk of a computer, and includes several instructions to enable a computer device (which may be a robot, a personal computer, a server, or a network device) to execute the audio playing parameter configuration method of the mobile terminal according to any embodiment of the present invention.
It should be noted that, in the audio playing parameter configuration device of the mobile terminal, each unit and each module included in the device are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by suitable instruction execution devices. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in more detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the claims.
Claims (12)
1. An audio playing parameter configuration method of a mobile terminal is characterized by comprising the following steps:
acquiring audio playing data and audio recording data of the mobile terminal;
determining playing delay according to the audio playing data and the audio recording data;
and configuring audio playing parameters of the mobile terminal according to the playing delay.
2. The method of claim 1, wherein the determining the play delay according to the audio play data and the audio recording data comprises:
comparing the audio playing data with the audio recording data to obtain a comparison result;
determining a recorded audio block and a played audio block corresponding to the recorded audio block according to the comparison result;
and determining the playing delay based on the cache offset duration of the played audio block.
3. The method of claim 2, wherein comparing the audio playing data with the audio recording data to obtain a comparison result comprises:
respectively carrying out Fourier transform on the audio playing data and the audio recording data to obtain playing audio frequency domain data and recording audio frequency domain data;
and comparing the power spectrum of the played audio frequency domain data with the power spectrum of the recorded audio frequency domain data to obtain a target frequency domain power spectrum serving as the comparison result.
4. The method as claimed in claim 3, wherein the determining the recorded audio block and the played audio block corresponding to the recorded audio block according to the comparison result comprises:
extracting an audio block corresponding to the target frequency domain power spectrum from the recorded audio frequency domain data to serve as the recorded audio block;
and extracting the audio block corresponding to the target frequency domain power spectrum from the played audio frequency domain data to be used as the played audio block corresponding to the recorded audio block.
5. The audio playing parameter configuration method of the mobile terminal according to claim 1, wherein the audio playing parameter configuration method is applied to the mobile terminal, and further comprises, before acquiring the audio playing data and the audio recording data of the mobile terminal:
receiving an initial playing parameter sent by a server;
setting the initial playing parameter as an audio playing parameter of the mobile terminal;
configuring audio playing parameters of the mobile terminal according to the playing delay, wherein the configuring audio playing parameters comprises:
determining an audio playing delay parameter corresponding to the playing delay;
and when the audio playing delay parameter is inconsistent with the initial playing parameter, replacing the initial playing parameter with the audio playing delay parameter.
6. The method of claim 1, wherein the method for configuring audio playing parameters is applied to a server, and the configuring the audio playing parameters of the mobile terminal according to the playing delay includes:
determining an audio playing delay parameter according to the playing delay;
and sending the audio playing delay parameter to the mobile terminal so as to configure the audio playing delay parameter into an audio playing parameter of the mobile terminal.
7. The method of claim 6, wherein before sending the audio playing delay parameter to the mobile terminal, the method further comprises:
acquiring initial playing parameters according to the identification information of the mobile terminal;
judging whether the audio playing delay parameter is consistent with the initial playing parameter or not;
and if the audio playing delay parameter is not consistent with the initial playing parameter, executing the step of sending the audio playing delay parameter to the mobile terminal.
8. The method for configuring audio playing parameters of a mobile terminal according to claim 6 or 7, further comprising, before acquiring the audio playing data and the audio recording data of the mobile terminal:
acquiring identification information of the mobile terminal;
and sending the initial playing parameter corresponding to the identification information to the mobile terminal so as to trigger the mobile terminal to set the initial playing parameter as an audio playing parameter.
9. The method according to any one of claims 1 to 7, wherein the mobile terminal includes a playing end and a recording end, the audio playing data is audio data acquired at the playing end during playing and recording of the mobile terminal, and the audio recording data is audio data acquired at the recording end during playing and recording of the mobile terminal;
the audio playing parameters include at least one of: a caching threshold parameter, a hardware drive delay parameter and a play delay parameter.
10. An audio playing parameter configuration device of a mobile terminal is characterized by comprising:
the audio data acquisition module is used for acquiring audio playing data and audio recording data of the mobile terminal;
the playing delay determining module is used for determining playing delay according to the audio playing data and the audio recording data;
and the playing parameter configuration module is used for configuring the audio playing parameters of the mobile terminal according to the playing delay.
11. An apparatus, comprising: a processor and a memory;
the memory stores at least one instruction, and the instruction is executed by the processor to enable the device to execute the audio playing parameter configuration method of the mobile terminal according to any one of claims 1 to 9.
12. A computer-readable storage medium, wherein instructions in the storage medium, when executed by a processor of a device, enable the device to perform the audio playback parameter configuration method of a mobile terminal according to any one of claims 1 to 9.
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