[Openal] Low gain and Clipping

[Daniel PEACOCK]

Hi,

You should check all your mixer settings to make sure you are recording
*and* playing back the signal at decent levels.

With the default Listener and Source positions, OpenAL is not going to
attenuate your samples at all (except maybe to allow for a bit of headroom
which will be a fairly small amount).

Dan
Creative Labs (UK) Ltd.

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             Chris Robinson                                                
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                                       Re: [Openal] Low gain and Clipping  
                                                                           
             04/09/2010 17:26                                              
                                                                           
                                                                           
                                                                           
                                                                           




On Friday, September 03, 2010 4:52:06 am Fruskus wrote:
> My vocoder is working ok, but I have the next issue:
> The gain is so low I need to turn my speakers up to the max just for
> average volume.
> I've tried to set source gain to 2.0 but clipping appears. It also
happens
> if I multiply by 1.5, or something like that, the buffer which contains
the
> samples. And as long as it's a "real time" application, I can't normalize
> the samples.

Hi.

That's odd. Setting the source volume to 2.0 should still clamp it to 1.0
because of AL_MAX_GAIN (which can't go above 1.0). If the sound is mono,
make
sure you set source's AL_SOURCE_RELATIVE property to true, and set the
position to {0, 0, 0}, to prevent distance attenuation. Otherwise, make
sure
the sound itself isn't too quiet.

If that doesn't help, what OS and OpenAL version are you using?
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