[of-dev] Recommendations for live iOS audio effects?

Joel Gethin Lewis me at joelgethinlewis.com
Mon Jul 6 04:13:08 PDT 2015


Hey All,

Thanks for the tips - I know this is the kind of thing that should be on the forum - we’ll be doing a write up when we launch this project.

I think ofxPD looks perfect - thanks Arthur and Adam.

Hansi, we’ll try your code and Superpowered too.

Thanks all!

Cheers,

Joel
> On 5 Jul 2015, at 23:23, Arthur Carabott <arthurc at gmail.com> wrote:
> 
> using libpd would open you up to getting a sound designer who uses PD on board: https://github.com/danomatika/ofxPd
> 
> 
> 
> 
> 07968 874 852
> www.arthurcarabott.com
> 
> On 2 July 2015 at 17:17, Hansi Raber <super at superduper.org> wrote:
> hey! 
> 
> 
> On Thu, Jul 2, 2015 at 5:07 PM, Joel Gethin Lewis <me at joelgethinlewis.com> wrote:
> Hey Hansi,
> 
> Awesome - do you have any examples of Accelerate Framework use for this:
> 
> > i usually work directly on the audio buffer level (the accelerate framework is really neat to get decent performance)
> Is that OSX / iOS only? I thought Accelerate was Apple only?
> yes, it is. 
> i attached you a slightly messy class which i carry over from project to project. 
> it provides only basic things (copy buffers, add buffers, and a small class to record+playback into a single sample), but for those operations it uses accelerate if available. 
> 
> there's also this. it looks good, but i haven't tried it: 
> http://superpowered.com/#axzz3ekRCxuU7
> 
> 
> best, 
> hansi. 
> 
> 
> Thanks for the reference too. Looks so much fun - I love it when you do the smile to yourself.
> 
> Cheers,
> 
> Joel
> > On 2 Jul 2015, at 15:42, Hansi Raber <super at superduper.org> wrote:
> >
> > hey joel!
> >
> > i've done quite some audio processing on ios, but i avoided audio units because of the cross platform problem.
> > so i can't talk about those.
> > i usually work directly on the audio buffer level (the accelerate framework is really neat to get decent performance)
> >
> > for obtaining samples voice/noise/silence discrimination could be useful (i played with this last week to figure where in an audio stream people are speaking: http://shout-toolkit.sourceforge.net/).
> >
> > i have some to-be-released-soon(tm) projects which i think go a bit in the direction you're talking about (from a technical point of view).
> > for instance here is one test that uses formant detection to grab samples from the users microphone and rearranges them: https://www.youtube.com/watch?v=pqgDtZCEbwo
> >
> > best, hansi.
> >
> >
> > On Thu, Jul 2, 2015 at 12:44 PM, Joel Gethin Lewis <me at joelgethinlewis.com> wrote:
> > Hey of-Dev world,
> >
> > I was looking for some recommendations for a live audio R&D project we are working on at the moment.
> >
> > The aim to create scary live audio effects based on the users microphone. It’s all being made on iOS - we are using Estimotes to make  an audio tour of a haunted space and I want to add live echos/delays/distortions to the persons footsteps and whimpers as they walk around.
> >
> > I found these AudioUnit plugins:
> >
> > https://github.com/admsyn/ofxAudioUnit
> > https://github.com/microcosm/ofxAudioUnitManager
> >
> > Does anyone have any other suggestions or advice?
> >
> > Cheers,
> >
> > Joel
> >
> > Joel Gethin Lewis
> > me at joelgethinlewis.com
> > @joelgethinlewis
> > +44 7932 792 076
> >
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> 
> Joel Gethin Lewis
> me at joelgethinlewis.com
> @joelgethinlewis
> +44 7932 792 076
> 
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Joel Gethin Lewis
me at joelgethinlewis.com
@joelgethinlewis
+44 7932 792 076



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