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- Added volume reduction for stereo sounds played in 3D to obtain levels

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closer to FMOD 3, which downmixed all stereo sounds to mono before
  playing them in 3D. Also added experimental 3D spread for stereo sounds
  so that you can actually hear them in stereo.


SVN r989 (trunk)
This commit is contained in:
Randy Heit 2008-05-23 01:45:47 +00:00
parent ab6b5e337e
commit 317710e9c4
2 changed files with 21 additions and 0 deletions
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6
docs/rh-log.txt
View file

@ -1,3 +1,9 @@
May 22, 2008
- Added volume reduction for stereo sounds played in 3D to obtain levels
closer to FMOD 3, which downmixed all stereo sounds to mono before
playing them in 3D. Also added experimental 3D spread for stereo sounds
so that you can actually hear them in stereo.
May 22, 2008 (Changes by Graf Zahl)
- Reworked a few options that previously depended on LEVEL_HEXENFORMAT
(actors being forced to the ground by instantly moving sectors, strife

15
src/sound/fmodsound.cpp
View file

@ -1364,6 +1364,8 @@ FSoundChan *FMODSoundRenderer::StartSound(sfxinfo_t *sfx, float vol, int pitch,
//
//==========================================================================
CVAR(Float, snd_3dspread, 180, 0)
FSoundChan *FMODSoundRenderer::StartSound3D(sfxinfo_t *sfx, float vol, float distscale,
int pitch, int priority, float pos[3], float vel[3], int chanflags)
{
@ -1373,6 +1375,7 @@ FSoundChan *FMODSoundRenderer::StartSound3D(sfxinfo_t *sfx, float vol, float dis
FMOD::Channel *chan;
float freq;
float def_freq, def_vol, def_pan;
int numchans;
int def_priority;
if (FMOD_OK == ((FMOD::Sound *)sfx->data)->getDefaults(&def_freq, &def_vol, &def_pan, &def_priority))
@ -1398,6 +1401,17 @@ FSoundChan *FMODSoundRenderer::StartSound3D(sfxinfo_t *sfx, float vol, float dis
((FMOD::Sound *)sfx->data)->setDefaults(def_freq, def_vol, def_pan, def_priority);
}
// Reduce volume of stereo sounds, because each channel will be summed together
// and is likely to be very similar, resulting in an amplitude twice what it
// would have been had it been mixed to mono.
if (FMOD_OK == ((FMOD::Sound *)sfx->data)->getFormat(NULL, NULL, &numchans, NULL))
{
if (numchans > 1)
{
vol *= 0.5f;
}
}
if (FMOD_OK == result)
{
result = chan->getMode(&mode);
@ -1418,6 +1432,7 @@ FSoundChan *FMODSoundRenderer::StartSound3D(sfxinfo_t *sfx, float vol, float dis
}
chan->setVolume(vol);
chan->set3DAttributes((FMOD_VECTOR *)pos, (FMOD_VECTOR *)vel);
chan->set3DSpread(snd_3dspread);
chan->setDelay(FMOD_DELAYTYPE_DSPCLOCK_START, DSPClockHi, DSPClockLo);
chan->setPaused(false);
FSoundChan *schan = CommonChannelSetup(chan);