I use a higher-level custom AudioEngine that encapsulates stuff like fade out/in, cross-matrix volume setting, getting level information.
On Dec 29, 2014, at 1:10 PM, Mark Wise <[email protected]> wrote: > Well, it works. It feels really dirty, and I am going to feel gross when I > try to calculate more specific timings, but it will get the job done in the > near term! > > Thanks for the tip, Matt. If anyone else has thoughts on how better to do > this, please do share! > > Mark Wise > 646.241.7126 > > On Mon, Dec 29, 2014 at 11:56 AM, Mark Wise <[email protected]> wrote: > Ok, good to know. I should know soon if it works. > > Mark Wise > 646.241.7126 > > On Mon, Dec 29, 2014 at 11:52 AM, Matt Hart <[email protected]> wrote: > 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 >> > _______________________________________________ >> > Do not post admin requests to the list. They will be ignored. >> > Coreaudio-api mailing list ([email protected]) >> > Help/Unsubscribe/Update your Subscription: >> > https://lists.apple.com/mailman/options/coreaudio-api/matt%40matthart.com >> > >> > This email sent to [email protected] >> >> > > >
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