Re: Micro tuning the AUSampler in iOS
Re: Micro tuning the AUSampler in iOS
- Subject: Re: Micro tuning the AUSampler in iOS
- From: Brian Willoughby <email@hidden>
- Date: Fri, 30 Dec 2011 17:01:12 -0800
Are you familiar with the MIDI Specification for Channel Modes? The
default "power-up" conditions are recommended as Channel 1, Omni On/
Poly, otherwise known as Mode 1. In this mode, the channel number is
basically ignored, which would seem to explain why your pitch bend
messages are affecting all channels.
I recommend that you send a Channel Mode message to select Omni Off.
You should certainly do this at startup or whenever a new MIDI
destination is selected, and perhaps also after a preset change. If
this does not solve your problem, then look deeper into the MIDI
Specification, starting with Poly/Mono and related modes.
Brian Willoughby
Sound Consulting
On Dec 30, 2011, at 15:30, Lukas Bühler wrote:
I'm developing an iOS instrument using the UASampler audio unit and
I want to support micto tuning. Currently I'm playing each note in
a different channel and I send pitch bend MIDI messages to micro
tune that note. What happens though is that all channels are pitch
bend not just the one I send the bend message to.
Does the AUSampler not support pitch bend on the individual
channels? Anybody know how to do this?
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