Re: Units for position?

> On 12/31/2012 11:01 PM, [email protected] wrote:
>> Turns out I have a follow-up distance.
>>
>> I presume the reference distance is treated as a radius from the
>> Listener
>> position, yes? so (1, 0, 0) is the same distance as (0,1,0) is the same
>> distance as (sqrt(2), sqrt(2), 0)?
>
> As far as distance attenuation goes, yes. Though that should be
> (sqrt(0.5), sqrt(0.5), 0) for the last one. :)

Touche'

OK, another question on this... now this might be hardware dependent or
something.  I noticed that with 2 speakers hooked up to the stereo audio
output of my MacBook Pro, when I put a sound off to the left (or right) of
the centerline, all of the sound comes from the left (or right) speaker,
and the opposite speaker goes silent.  I verified this by piping the audio
output to Audacity.

Not saying anything's broken, just trying to understand what's going on...

This happens no matter how close to 0 the X value appears to be (well, I
didn't try smaller than +/- 0.25).  To further puzzle me, these sources
are not located on the X axis, they are in front of me by 1 unit.  (i.e. [
+/- 0.25, 0, 1])

Is this an artifact of being in Stereo mode as opposed to, say, 2.1 (or
higher) Surround mode?  Or something else I don't understand.  I'm
expecting, since it's only a little bit to one side or the other, and
mostly out front, for the sound to still come from both speakers, with
more of a cross-fade effect happening, rather than shutting off one
speaker and only coming out of the other.

Thanks,

Mark
 v

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