[Openal] Audio rate conversion
Peter.Stevens at GTECH.COM
Thu Jul 31 07:57:03 PDT 2008
I'm running into what seems to be either openal-soft or alsa performing
rate conversion when it is not expected. The situation is that if I play
60 seconds, 120 seconds, and then 180 seconds of streamed audio (using
the same file) I end up with actual play times (via stop watch) of 61,
122, 183. The reason for the stop watch is that I wanted rule out any
overhead associated with program startup. So it would seem I end up with
a constant percentage of my audio being stretched? Can anybody explain
this behaviour or has anybody seen anything like this happen before? The
only thing I can think of is that somehow the audio stream is being
resampled; is there a way to show when this is happening?
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