Method and device for voice synchronization
A voice and clock synchronization technology, applied in electrical components, time-division multiplexing systems, multiplexing communications, etc., to solve problems such as loss of synchronization, low synchronization process processing speed, and low synchronization processing performance.
Active Publication Date: 2018-03-30
SANECHIPS TECH CO LTD
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Problems solved by technology
In the process of software implementation, the environmental factors of software operation are likely to affect the synchronization process of the software, resulting in synchronization deviation and even out-of-synchronization. The performance of synchronization processing is low; and the processing speed of software to achieve synchronization process is also relatively low
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[0061] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.
[0062] see figure 1 , which shows a voice synchronization method provided by an embodiment of the present invention, the method may include:
[0063] S101: Integrating audio into the integrated circuit (I 2 S, the channel indication signal in the Inter-IC Sound) bus is used as a clock synchronization signal;
[0064] In this embodiment, from any road I 2 The channel indicating signal WS in S is used as a clock synchronization signal, and the clock synchronization signal is represented by clk_voice_sync.
[0065] S102: Sampling the voice frame signal acquired by the physical layer to obtain a frame interruption signal;
[0066] It can be understood that due to the difference of the communication system, the voice frame signal corresponding to each communication system can b...
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Disclosed are a speech synchronization method and device. The method comprises: using a sound track indicating signal in an audio I2S bus built in an integrated circuit as a clock synchronization signal; sampling a speech frame signal acquired in a physical layer to get a frame interruption signal, and generating a first interruption signal according to the frame interruption signal and a preset parameter; counting the period of the clock synchronization signal in accordance with preset counting rules by means of two counters, respectively; when a count number of the first counter is a second preset number, generating a second interruption signal and recording a current first count number of the second counter, and according to the difference between the first count number and a second count number as well as a preset threshold, determining a data length of a speech sample which is transferred by means of direct memory access (DMA).
Description
technical field [0001] The present invention relates to wireless communication technology, in particular to a voice synchronization method and device. Background technique [0002] In a mobile communication system, in order to ensure the normal progress of network voice communication, the synchronization between the local clock and the network clock is required, that is, the time reference of the UE needs to be synchronized with the System Frame Number (SFN, System Frame Number) of the cell where it resides. Currently, the synchronization between the local clock and the network clock is usually implemented by software. In the process of software implementation, the environmental factors of software operation are likely to affect the synchronization process of the software, resulting in synchronization deviation and even out-of-synchronization. The performance of synchronization processing is low; and the processing speed of software to realize the synchronization process is ...
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IPC IPC(8): H04J3/06
CPCH04J3/06
Inventor 王魏卢海涛安英杰
Owner SANECHIPS TECH CO LTD