Please write audio tests (was: Playing ULAW sample correctly?)
Joerg-Cyril.Hoehle at t-systems.com
Joerg-Cyril.Hoehle at t-systems.com
Wed Nov 4 04:48:28 CST 2009
Hi,
>1. generate a PCM sine wave tone (like winmm/tests/wave.c);
Actually any repetitive signal may not be good enough for general purpose,
sine or square. Perhaps add some change in volume?
For instance, there currently is a bug somewhere that causes Wine to
repeat the first second of an intro animation's sound (bug #18182, comment #3)
instead of continuing. This would probably not be detected.
Also, the µ-law speech sample I fed to the MCI produces
stuttering. Perhaps that would not be heard with a sine wave,
if the periods match.
Still it's better to have a test than currently no test at all!
>It is also quite simple to generate sine waves without any trig.
Code for sine is already in winmm/tests/wave.c No need to reinvent.
Regards,
Jörg Höhle
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