Pan not working properly with Mac OSX?

[Michael Briscoe]

Hello,

I'm trying to use ObjectAL for my SpriteKit project, specifically OALSimpleAudio. When using playEffect, the pan position of the audio is either hard right, or hard left, no matter how low I make the number. I'm using  mono files, and I've tried numbers from - 0.0001 through 0.0001.

The project is running on OS X 10.9.2.

Any ideas?

[Mark Anderson]

What do you have the position of the source relative to the listener? I'm not totally sure but is there an example given in the documentation for setting up a simple pan?

-Mark

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[Michael Briscoe]

Thanks for the reply, but I'm using OALSimpleAudio:

[OALSimpleAudio sharedInstance] playEffect:@"Sound" volume:1.0f pitch:1.0f pan:0.0f loop:NO];

I'm assuming that a pan setting of 0.0f is center of the stereo field. When changing the setting to anything positive (0.1f) or anything negative, (-0.1), my results are hard right, or hard left without any bleed across the right of left. This is with OSX, I haven't had a chance to try it with the iOS simulator, or iOS device.

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[Karl Stenerud]

Hmm that sounds like an OS bug. It works fine under iOS (and used to work fine under OSX). I checked by manually setting the ALContext’s distanceModel to AL_DISTANCE_LINEAR_CLAMPED and checked that all ALSource objects have a valid referenceDistance and maxDistance (they do, 1 and 1000 respectively). OpenAL on OSX just seems to ignore the distance model, unless there’s something else I’m missing...

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