Re: iPhone recording gain (RemoteIO)
Re: iPhone recording gain (RemoteIO)
- Subject: Re: iPhone recording gain (RemoteIO)
- From: William Stewart <email@hidden>
- Date: Mon, 23 Nov 2009 13:10:44 -0800
On Nov 22, 2009, at 9:07 AM, Zachary Kulis wrote:
Can anyone confirm whether there is a way to set the recording gain on
the iPhone/iTouch?
not at this time
I am using the RemoteIO to record raw audio samples,
and the signal is often quite low (< 50% of full dynamic range
available). Specifically, does the A/D hardware have an automatic gain
control circuit or is the input gain hardcoded to some nominal value?
I see that the VoiceProcessorIO unit has a property called
"kAUVoiceIOProperty_VoiceProcessingEnableAGC". Does this property also
apply to the RemoteIO?
no
Is the AGC implemented in software or hardware?
Any information would be greatly appreciated, as the documentation
does
not specify anything about setting the recording gain.
Thanks,
Zach
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