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From: | Tom Rondeau |
Subject: | Re: [Discuss-gnuradio] GRC uses OSS instead of ALSA?? |
Date: | Wed, 4 Jun 2014 10:30:15 -0400 |
Hi guys,My application requires that I use a multi-channel audio device as an audio source. I have in my system of hardware the Presonus 1818VSL external USB device. This audio source is definetely working correctly with Ubuntu as I can monitor the level of each channel using Ardour without any preconfiguration whatsoever.My problem is that I am having absolutely no luck in trying to establish a connection between GRC and my multi-channel sound device (Presonus 1818). I have uninstalled pulse audio and made the chages to the /etc/modprobe.d/alsa-base.conf file as per these directions. I know for fact that this did work about two months ago, at that time, I was measuring each audio input in GRC using a scope sink. It was beautiful and it worked fantasticly) http://forums.presonus.com/posts/list/28993.pageRegardless of how my multi-channel audio source is delcared (i.e. blank, hw:0,0 or plughw:0,0) GRC will always report that the OSS source has no file or directory. I have read that OSS was discontinued quite some time ago. How can I force GRC to use only the ALSA audio source?I have attached a couple of screen shots showing my very simple flowgraph and the ALSA mixer info.Thanks in advance for any advise to get me rolling in the right direction.John
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