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Re: [Discuss-gnuradio] No audio on os x reading .dat files


From: Michael Dickens
Subject: Re: [Discuss-gnuradio] No audio on os x reading .dat files
Date: Thu, 10 Aug 2006 09:56:02 -0400

OK. So .dat files don't play audio on OSX under portaudio or audio- osx. Can anyone confirm that these same .dat files do play audio on any other OS, and thus it's an OSX-specific issue? Or is it possibly a more general GNU Radio issue? I have only PPC Macs to work with, so I can't test otherwise. - MLD

On Aug 4, 2006, at 6:15 AM, Josh Jennings wrote:
My hardware is: OS X Tiger 10.4.(6? or whatever the latest update is,
don't have my ibook here with me at the moment), 1.33 GHz iBook G4,
USB2.0, nothing fancy but runs good. I do not have the usrp board and
no rf frontend, just the software. All gnuradio modules are directly
from cvs and are up-to-date. I thought to make sure my system could do
the basics before I invest in more hardware, I wanted to run some
tests using dat files, but that is where I got no audio response.
Additionally, do you have the usrp board working on your mac?

Just to note: the .dat files did NOT work for audio-portaudio OR
audio-osx. Only the python scripts which generate the audio signal
from gnuradio worked (for portaudio and osx), ie dial_tone.py etc.
Reading from a .dat file seems to produce cpu work but no audio out in
my built in speakers.
I could also take a look into this, but since I am new to the project
it is probably slower going for me, plus I got family visiting for a
bit...as to being patient, that is not a problem. Good work takes time.




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