S3c2440 on the real-time transmission of audio , what projects to encode and decode better ? Before I used speex, but it feels very fees CPU resources , resulting encoded and decoded audio delay is too large, there are about 3 seconds . Direct transmission of audio data using UDP only a slight delay , but considering the large amount of data to the network , or starting a encoding and decoding , do not know what kind of prawn used ?
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g.711A
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G711A, G711U, G726, G729, ADPCM,
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theoretically G711A codec will not consume too much CPU resources have been sufficient simple.
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where this algorithm ah ?
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just G711A codec with the next test , 100K size of audio can be compressed to 48K. Take data from the MIC -> G711A coding -> UDP Send -> UDP Receive -> G711A Decoder - > send sound card, or between the two plates have relatively large delay of about 1.5 seconds or so. Is 2440 the processing power enough?
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