[Speex-dev] speexdec 1.2.3

Jean-Marc Valin jean-marc.valin at usherbrooke.ca
Thu Apr 3 21:19:33 PDT 2008

Jahn, Ray (R.) a écrit :
> Dear Speex codec community:
> I am working on conversion of voice files.  I could not figure out how to use speexdec.exe 1.2.3 in piped mode in order to avoid the creation of the potentially large intermediate *.wav or *.pcm files.  Any pointer to web or file of instruction is appreciated.
> Attempt (one long command line, failed):
> type d:\test.spx | "d:\speex 1.2.3\bin\speexdec.exe" - - | "d:\lame 3.97\bin\lame.exe" --preset voice - - > d:\test.mp3

Probably the reason why this doesn't work is that by default, speexdec
outputs a raw file and not a wav file. So you'll want to pipe it into
something that adds the wav header (e.g. sox).


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