WAV without QT revisited

spencerlearning brian at spencerlearning.com
Fri Jul 9 15:01:22 EDT 2010


Back in November, Richard Gaskin 
http://runtime-revolution.278305.n4.nabble.com/WAV-without-QT-td786452.html#a786455
asked :

I just tried playing a WAV file on a Win XP system which doesn't have
QuickTime. No go.  MP3 played well, but I couldn't get the WAV file to play.
...
Anyone know a workaround to get WAVs playing and to play at specific
points on Win systems without QT?

I am porting over to Rev an application written over 15 years ago in
Multimedia Toolbook 4 that uses thousands of external WAV files. To my
horror, after a day of testing it appears that Rev lacks even the most
rudimentary native Windows audio support.

Can anyone please provide a definitive answer? Is it really true that Rev
cannot perform the simple playing of a WAV file without using Quicktime?

Just as Richard found, I was able to play MP3 files under Windows XP and
Windows 7. Unfortunately, while the MP3s sounded fine with XP the quality
was awful with Windows 7. 

Now I am wondering, what is the point of the dontUseQT property? Does it
work well with anything?

In the same thread someone mentioned the problem might be Rev's reliance on
MCI rather than modern media APIs. In terms of audio files like WAV I
believe this is incorrect. My ancient Toolbook application written under Win
3.1 (!) uses MCI and still plays WAV files -- selections as well as entire
files -- beautifully on all versions of Windows including 7. My conclusion
is that the problem with audio lies in Rev's implementation of MCI.

Are there any new answers on playing external audio files on Rev without
Quicktime? Any help is greatly appreciated.


-----
Brian Spencer
Spencer Learning
http://spencerlearning.com http://spencerlearning.com 
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