A multipath audio frequency buffering method under IP network environment

An IP network, multi-channel audio technology, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve the problem of wasting system resources, and achieve the effects of saving system resources, high system operation efficiency, and simple processing methods

Inactive Publication Date: 2005-04-06
VIMICRO CORP
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[0016] However, because the statistical time slice still needs to

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[0032] The present invention will be further described in detail in conjunction with specific embodiments below.

[0033] The present invention aims at reducing the system consumption caused by the thread scheduling operation and improving the system response speed, and tries to reduce the number of threads in the system, thereby reducing or avoiding the switching between different threads. A more efficient two-threaded multi-channel audio buffering method in the prior art. Its specific implementation is the following steps:

[0034] Step 1: Create N blocks of audio data buffers with consecutive addresses in the memory according to the number N of audio channels participating in the processing. Said N is an integer.

[0035] The length L of the audio data buffer created in the memory satisfies L=n*m, where n is an integer greater than N, and m is the length of the audio data within a specified time. The designated time range is 50-150 milliseconds. The access of the audio ...

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Abstract

This invention discloses a multi-path audio frequency buffer process method in IP network, which comprises the following steps: first to establish multiple address continuous buffer areas in memory according to path number of the audio frequency; then to establish one network data receiving process and one multi-buffer recycle process, wherein the network data receiving process receives the audio data pack and crack it into relative audio data buffer area for process and the multi-buffer area cycle process processes the data in each audio frequency buffer area at certain time interval.

Description

technical field [0001] The invention relates to a method for buffering and processing audio signals, in particular to a method for buffering and processing multi-channel audio in an IP network environment. technical background [0002] Audio signal is a signal that people are very familiar with. It is inseparable from people's daily information exchange, communication and media. Therefore, the transmission processing of audio data occupies a considerable proportion in the field of signal transmission processing. However, since audio data has high requirements on the real-time performance of the system, that is, in the process of audio transmission and processing, the time spent is strictly required. , have extremely high requirements. [0003] On the one hand, in order to reduce the cost and increase the utilization rate of system hardware and software, we need to consider replacing the traditional single-channel audio data processing system with a multi-channel audio data...

Claims

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Application Information

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IPC IPC(8): H04L12/861H04L29/02
Inventor 傅群杨劲松施健标焉勇
Owner VIMICRO CORP
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