Re: Sound playback issue at >44.1kHz sample rate

[Christian W. <cwa...@gm...>]

jcowen wrote:
> I'm wondering if anyone has experienced sound playback distortion when
> sample rates greater than 44.1kHz are in the game engine? This seems to
> occur if the source files are at 48kHz for instance when converted to ogg,
> and also when the engine pitches sounds up.
> 
> For instance, a 44.1kHz ogg file placed on the knobs in the demo project
> building will distort/playback with digital artifacts when the knob is tied
> to the pitch variable of that sound.
> 
> This is only occurring on the Mac OS 10.5. I have not had the opportunity to
> check on Snow Leopard.

I see no such issues here, with either 44.1 or 48 kHz files. All I hear 
is a slight pop when the pitch changes between exactly 1.0 and >1.0, 
otherwise playback is smooth and clear, even at varying pitch. This is 
on a MacBookPro2,2 with 10.5.8.

One thing you could try is to use the system-provided OpenAL framework 
instead of the one that comes with Pipmak (which is there because OpenAL 
was only included in Mac OS from 10.4 on). To do this, right-click 
(ctrl-click) on the Pipmak application and choose "Show package 
contents". Navigate to Contents/Frameworks and move the folder 
OpenAL.framework away (to your desktop or somewhere else outside of the 
application package).

  -Christian