Re: FM Synthesis for iOS
Re: FM Synthesis for iOS
- Subject: Re: FM Synthesis for iOS
- From: "Patrick J. Collins" <email@hidden>
- Date: Tue, 12 Mar 2013 06:41:23 -0700 (PDT)
> Have you set up the "Voicer" class to manage the polyphony? I found STK worked
> fine (pre Momu days) (v 4.4.2 onwards) when built as a static library without
> the STK audio classes, generating multiple voices algorithmically, and with
> whatever iOS THUMB mode was required to support floating-point (and using
> Apple's standard example code to convert to fixed-point or whatever output -
> been while since I looked at my code). Otherwise, it may be some issue
> between the GUI control and the audio engine. STK/Momu is (so we are told)
> the workhorse engine for all Smule's apps, and I am pretty sure they have some
> polyphonic ones, so I recommend perseverance!
Hi,
Yes, I setup the voicer... I have created a simple project to
demonstrate my problem which you can download here:
http://collinatorstudios.com/www/polyphonyHell.zip
So, in the app delegate, you will find a call to the perfectFifthTest
method... This plays fine on the iOS simulator, but when playing on my
actual iPad device (generation 1), there is no sound at all.
I also have a middleCTest, so if I do that instead of the
perfectFifthTest, I hear it on my device, but it is highly distorted and
sounds terrible.
If anyone here can help me get this working properly then that would be
amazing, and it would avoid me having to build my own FM synth library.
Patrick J. Collins
http://collinatorstudios.com
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