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Re: [Discuss-gnuradio] Portaudio Audio Source in Windows

From: Marcus Müller
Subject: Re: [Discuss-gnuradio] Portaudio Audio Source in Windows
Date: Thu, 5 May 2016 23:26:50 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0

Sorry, not currently running any Windows VM, but in the spirit of giving you the info you need as fast as possible:

Quick lecture of the audio sink/source factory tells me that under windows, by default the windows audio architecture is used.
So to use portaudio instead, you need to have a GNU Radio config file (under unixoids, that's ~/.gnuradio/config.conf), and add

audio_module= portaudio

Best regards,

On 05.05.2016 22:59, Tony Richardson wrote:
I'm using the pre-built Win64 binary of GNURadio listed on the gnuradio.org site.  The portaudio library was included as part of the Win64 build, but I can't seem to figure out how to use it instead of the default windows audio.  (I want an audio source and the windows audio source does not work.)  I've tried putting "audio_module = portaudio" (and "audio_module = audio_portaudio") in the config.conf file, but when I run a simple flowgraph that includes an audio source and sink, I see:

INFO: Audio source arch: windows
INFO: Audio sink arch: windows

in the console and there is no sound.  I assume the lines above are telling me that the windows audio devices are being used and not the desired portaudio devices.  I have tried leaving the device name in the audio source blank as well as trying "0" and "hw:0,0", but still see the messages above.  Can someone tell me how to configure audio for portaudio or is it just not supported?

Tony Richardson

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