Looking at your post, You are already using the best format. If you do not have a fast filesystem try making a ram disk and play the files from there instead. if you *really* want you can use sox to turn them all into raw alaw files and rename them with a .PCMA extension to avoid the g711 transconding but g711 to PCM is pretty trivial. it's more likely a file i/o distress you see. On Thu, Apr 16, 2009 at 5:04 PM, Nik Middleton < nik.middleton@noblesolutions.co.uk> wrote:
Hi Guys,
I’m looking for the optimum audio format when using streamfile in a lua script.
I’ve found CPU load increases rapidly with the number of threads playing a .wav file. Can anyone tell me the optimum when using g711a?
Right now the the .wav files are
Audio format: PCM
Sample rate : 8 kHz
Mono
Sample Size: 16 bit
Bit rate :128kbps
Will it help CPU load if I resample to a bit rate of 64kbps and sample size of 8 bit?
I have read that the sample size needs to be 13-14bit +1 for alaw/ulaw though
Regards,
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