Re: hardcoded microphone buffering in iPhone?
Re: hardcoded microphone buffering in iPhone?
- Subject: Re: hardcoded microphone buffering in iPhone?
- From: Inca Rose <email@hidden>
- Date: Mon, 24 Nov 2008 09:33:15 +0200
Which API are you using, Audio Buffer Queues or Audio Units RemoteIO?
Regards
Inca Rose
On Nov 24, 2008, at 4:39 AM, Nate wrote:
I tell the iPhone mic to open at 22050hz sample rate with a 2048
byte buffer. My callback gets called with 2048 bytes with this many
seconds between calls...
0.185520
0.000077
0.000041
0.000039
0.185546
0.000075
0.000043
0.000042
It looks like it's internally buffering 8192 bytes, then hitting my
callback 4 times with 2048 each time. Is this true? How can I get it
to call my callback as soon as it collects 2048 bytes? IE, every
~0.046 seconds.
FWIW, I am seeing this behavior in the simulator (2.2), I don't have
an actual iPhone at the moment to try it on.
Thanks,
-Nate
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