[Openal] EFX & Reverb

Daniel PEACOCK dpeacock at creativelabs.com
Fri Jun 9 14:08:41 PDT 2006





Hi,

The EFX Reverb Effect  (and the EFX 'EAX Reverb' Effect) are comprised of
two parts - an early reflections part and a late reverb part.   With the
exposed parameters you can control the gain of each part separately
(AL_REVERB_REFLECTIONS_GAIN and AL_REVERB_LATE_REVERB_GAIN), and you can
also adjust the delay times (AL_REVERB_REFLECTIONS_DELAY and
AL_REVERB_LATE_REVERB_DELAY).  There are controls in the EFX 'EAX Reverb'
which allow you to control an echo effect in the late reverb stage - but
you cannot set the gains and delays individually (you can set an Echo Rate
and Echo Depth and use a Diffusion parameter to determine how quickly or
not the echos will wash out).

Dan

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Trying to realize something with the EFX extenstions i have the
following problem-
i need to specify the delay and the gain manually

like:
first echoe
1st delay: value 1
1st gain: value 1

next echoe
2nd delay value 2
2nd gain value 2

up to 6 echoes

But now i'm not sure if i can manipulate the effects in such a way. Any
suggestions ?
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