SKAudioNode in iOS9 and volume

I'm trying to use the new SKAudioNode in iOS9. I get the sound to play, but can't seemt to access the nodes volume?

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helloniklas
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Hi helloniklas,


The node's volume can be accesses via the AVAudioNode property and the related APIs or you can use the audio SKActions to set them.


[SKAction

+ play

+ pause

+ stop

+ changePlaybackRateTo:duration:

+ changePlaybackRateBy:duration:

+ changeVolumeTo:duration:

+ changeVolumeBy:duration:

+ changeObstructionTo:duration:

+ changeObstructionBy:duration:

+ changeOcclusionTo:duration:

+ changeOcclusionBy:duration:

+ changeReverbTo:duration:

+ changeReverbBy:duration:

+ stereoPanTo:duration:

]


Note that any action of the form somethingBySomething is a relative action, whereas somethignToSomething is an absolute action.


Cheers

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greven
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Hi helloniklas,


The node's volume can be accesses via the AVAudioNode property and the related APIs or you can use the audio SKActions to set them.


[SKAction

+ play

+ pause

+ stop

+ changePlaybackRateTo:duration:

+ changePlaybackRateBy:duration:

+ changeVolumeTo:duration:

+ changeVolumeBy:duration:

+ changeObstructionTo:duration:

+ changeObstructionBy:duration:

+ changeOcclusionTo:duration:

+ changeOcclusionBy:duration:

+ changeReverbTo:duration:

+ changeReverbBy:duration:

+ stereoPanTo:duration:

]


Note that any action of the form somethingBySomething is a relative action, whereas somethignToSomething is an absolute action.


Cheers

Posted by
greven
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Thanks for the answer. I did try the .avAudioNode but that dind't seem to work. Only way seemed to be doing avAudioNode.engine.mainMixernode.volume. But that had no effect. Using an action with 0 duration works though, thanks.


So, this won't work:

ballBounceSound.avAudioNode?.engine?.mainMixerNode.volume = Float(volume)


This will work:

ballBounceSound.runAction(SKAction.changeVolumeTo(Float(volume), duration: 0))

Posted by
helloniklas
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Ok. I've got the same problem but with SceneKit instead of SpriteKit. Any idea how I can solve it? Trying this:


player.audioNode?.engine?.mainMixerNode.volume = [FLOAT_VALUE]


does nothing. And I can't seem to find a similar "changeVolume" action in SceneKit.


Thanks!

Posted by
zeusent
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Instead of mainMixerNode access volume like this: (audioNode.avAudioNode as? AVAudioPlayerNode)?.volume This is the correct way to get SKAudioNode's volume.

Posted by
kelin
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