[Openal] Source gain issue

Anthony Thibault anthonythibault at yahoo.com
Fri Apr 4 16:56:56 PDT 2008


Hello all, I'm having a problem with how sounds are rendered with OpenAL 1.1 on Mac OS 10.5.2 (leopard).

Whenever I play a freshly created source, near the listener, the volume of the sound ramps up quickly from 0 to 1.  The initial part of the sample is clipped off, almost as if it had an ADSR envelope on it with a 100ms attack time.

I also have a similar problem that occurs with sources that are far outside the linear falloff distance.  The volume ramps down from 1 to 0.  This causes the initial part of the sound to be audible, when it should be completely silent.

Has anyone heard this behavior before, or know any workarounds?

Anthony Thibault




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