Data synchronization method, device, equipment and computer-readable storage medium
A data synchronization and computer technology, applied in the field of acoustics, can solve problems such as clock asynchrony, discontinuous playback, loss of audio data stream, etc., to achieve the effect of avoiding noise and temporarily stopping the playback of sound signals
Active Publication Date: 2022-05-06
WEIFANG GOERTEK MICROELECTRONICS CO LTD
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Problems solved by technology
[0003] However, since the device and the sound card work independently under their own clocks, and the operating system running on the device is usually a non-real-time operating system, the clocks between the device and the sound card are usually not synchronized
This causes the device to decode the audio file into an audio data stream at a different rate than the sound card converts the audio data stream into a sound signal, which will affect the quality of the sound signal played by the sound card
[0004] Specifically, when the rate at which the device decodes an audio file into an audio data stream is greater than the rate at which the sound card converts the audio data stream into a sound signal, the audio data stream in the sound card buffer will overflow, resulting in the loss of part of the audio data stream, further causing the sound card to The sound signal played has noise, discontinuous playback, etc.
Method used
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[0041] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
[0042] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.
[0043] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.
[0044] In all examples shown and discussed herein, any specific values should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...
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The invention discloses a data synchronization method, device, equipment and computer-readable storage medium. Wherein, the method includes: when the amount of data in the buffer of the sound card is greater than the first threshold for the first time, performing the operation of playing the sound signal by the sound card; during the period of playing the sound signal by the sound card, obtaining the current amount of data in the buffer; when the amount of current data is less than the first threshold In the case of the second threshold or greater than the third threshold, the playback rate adjustment of the sound card is determined according to the difference between the current data volume and the historical data volume and the time interval between the current data volume and the historical data volume; wherein, the historical data The amount is the amount of data in the cache when the playback rate of the sound card was adjusted last time, and the first threshold is greater than the second threshold and less than the third threshold; according to the playback rate adjustment amount, the current playback rate of the sound card is adjusted.
Description
technical field [0001] The present invention relates to the field of acoustic technology, and more specifically, to a data synchronization method, a data synchronization device, an audio playback device, and a computer-readable storage medium. Background technique [0002] At present, when a user listens to a sound signal (such as music) through a device such as a computer, the device first decodes the audio file into an audio data stream, and then sends the audio data stream to the sound card (the sound card can be the sound card of the device, or it can be a the sound card of the audio device connected to the device). The sound card first stores the audio data stream sent by the device in its own cache, and then converts the audio data stream in the cache into a sound signal. Based on this, the listening of the sound signal is realized. [0003] However, since the device and the sound card work independently with their own clocks, and the operating system running on the ...
Claims
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IPC IPC(8): H04L65/60H04L65/61H04L47/25H04L47/10
CPCH04L47/25H04L47/29H04L65/61H04L65/75
Inventor 李光英
Owner WEIFANG GOERTEK MICROELECTRONICS CO LTD