>My tests (with quality headphones) told me that the sources were too
audible
>at a long distance even with a change of several magnitudes to
>_AL_CUTOFF_ATTENUATION. So in my opinion, the value should either go away
>completely (I run with 0.00 with no audible problems) or much lower, as in
>1e-8 or lower.
1e-8 = -160dB which is unnecessary for 16 bit output which has a noise
floor of -96dB (1e-5 = -100dB).
Depending on the application (in games for example you can usually get away
with about -60dB (1e-3) as long
as other sounds are playing as well..
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|---------+------------------------------------------>
| | Elias Naur |
| | <naur@xxxxxxxxxxxxxxxxxxxxx> |
| | Sent by: |
| | openal-devel-admin@xxxxxxxxxxxx|
| | reative.com |
| | |
| | |
| | 09/22/2005 01:43 AM |
| | |
|---------+------------------------------------------>
>--------------------------------------------------------------------------------------------------------------|
|
|
| To: openal-devel@xxxxxxxxxxxxxxxxxxxxxxx
|
| cc:
|
| Subject: Re: [Openal-devel] Queue race condition patches
|
>--------------------------------------------------------------------------------------------------------------|
On Thursday 22 September 2005 10:13, Adam D. Moss wrote:
> Elias Naur wrote:
> > Finally, I'd like to change
> >
> > #define _AL_CUTTOFF_ATTENUATION 0.01
> > to
> > #define _AL_CUTTOFF_ATTENUATION 0.00
> >
> > in al_filter.c. Alternatively, if 0.00 is unacceptable, 1e-8 or
whatever.
> > The current 0.01 value is too high in my ears, since sources are simply
> > not attenuated enough with that as a lower limit.
>
> I have no particular opinion on this change. I've not encountered
> sources not-being-attenuated-enough. I think that 0 may not
> be good because a brief code-browse says that we compare with < not
> <=. How does a tenfold reduction to 0.001 sound?
>
My tests (with quality headphones) told me that the sources were too
audible
at a long distance even with a change of several magnitudes to
_AL_CUTOFF_ATTENUATION. So in my opinion, the value should either go away
completely (I run with 0.00 with no audible problems) or much lower, as in
1e-8 or lower.
- elias
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