[linux-audio-dev] Olypus voice recorder - codec?

Richard Smith smithbone at gmail.com
Fri Jan 6 16:09:47 UTC 2006


On 1/5/06, Dan Stromberg <strombrg at dcs.nac.uci.edu> wrote:
>> The data is coming out of the windows app in this format: IMA ADPCM,> that is.>> But unfortunately, I don't seem to be having much luck discovering what> codec they actually spit out of the voice recorder, prior to the> application apparently converting it to IMA ADPCM.
Have you tried feeding in a known constant sources using a signalgenerator?  Looking at the output for a 100,500,1k,2k,4k sine wavesmight give you some clues since you should be able to see when thedata repeats.
--Richard A. Smith



More information about the Linux-audio-dev mailing list