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Re: [Discuss-gnuradio] OS X input troubled
From: |
Jason Uher |
Subject: |
Re: [Discuss-gnuradio] OS X input troubled |
Date: |
Thu, 30 Apr 2009 07:30:41 -0500 |
> The problem I have is with audio input. Output is working fine (dial_tone.py
> is wowking), but when I try
> to use audio input, I get:
2009/4/30 Michael Dickens <address@hidden>:
> code; I haven't looked at it or updated it in a long time. I can't look
> into this issue today, but I will tomorrow (Friday).
If you want to keep messing with this in the meantime, I recall that
there were a few issues getting audio input in gnuradio to work for me
at first with (an earlier version of ) 10.4
First, the 'dumb' problem, make sure voice control is off, apple has
it on by default, and you can turn it off in system
preferences->speech.
Secondly, there were issues with sample rate. You specified 96k as
the input sample rate, I'm reasonably sure that I could only get it to
work with lower rates (i.e. <40k) on my MBP C2D (with the very
informative name of 'intel audio device').
Finally, there was an issue where garage band (even when closed) had
'claimed' control over the microphone. I had to go in and set its
default input device to null.
I'm not sure exactly what you are doing, I was only playing around to
try and get a handle on gr before my usrp got here so I didn't need a
whole lot of functionality, but at least you have something to try in
the meantime.
Jason