No distortion ... but I do put the timer in NSRunLoop commonModes

On Dec 29, 2014, at 12:45 PM, Mark Wise <[email protected]> wrote:

> Thanks for the quick reply, Matt. That's what I'm trying right now.  It just 
> seems so high-level for such a low-level component. Have you noticed any 
> distortion when doing quick fades?
> 
> Mark Wise
> 646.241.7126
> 
> On Mon, Dec 29, 2014 at 11:32 AM, Matt Hart <[email protected]> wrote:
> I use a timer to fade in/out, changing the volume of the player. I adjust +/- 
> .05 on .1 second increments.
> 
> On Dec 29, 2014, at 12:27 PM, Mark Wise <[email protected]> wrote:
> 
> > I am trying to smoothly fade in/out the output from a AVAudioPlayerNode 
> > that is connected to an AVAudioMixerNode. I can't figure out the best 
> > approach to smoothly ramp the player node's volume over time.
> >
> > I see that there's a 'setVolumeRampFromStartVolume:toEndVolume:timeRange' 
> > method in the AVMutableAudioMixInputParameters class that is basically 
> > exactly what I'm looking for. However, there doesn't seem to be a use for 
> > this with an AVAudioMixing-compliant node like the AVAudioPlayerNode 
> > connected to an AVAudioMixerNode.
> >
> > If I were using an audio unit, I could theoretically connect a MusicTrack 
> > in a MusicSequence and automate parameters with a MusicPlayer instance. 
> > However, the AVAudioPlayerNode isn't an audio unit, so no luck there.
> >
> > Has anyone successfully automated the pan/volume when using the 
> > AVAudioMixing components? It's such a low-level-feeling component that I 
> > figured parameter automation would be possible.
> >
> >
> > Mark Wise
> > 646.241.7126
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