Thread: [Alsa-user] snd-dummy
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From: <val...@gm...> - 2002-09-29 21:27:04
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Hello, i would like to know how much function has been implemented into the dummy driver. After setting the dummy driver up i tried to play something to it through xmms. Unfortunately i was not able to record what i was playing to it. Is this possible or is the data dropped very early. The main reason is that i tried to have a dummy soundcard which copies its data to the real one. A real virtual soundcard. I used the following /etc/asound.conf server.local { host localhost socket /tmp/alsa } pcm.first { type hw card 0 device 0 } ctl.first { type hw card 0 } pcm.second { type hw card 1 device 0 } ctl.second { type hw card 1 } pcm.copy{ type plug slave { pcm second } route_policy copy } Thank you |
From: Jaroslav K. <pe...@su...> - 2002-09-30 16:29:32
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On 29 Sep 2002, val...@gm... wrote: > Hello, > > i would like to know how much function has been implemented into the > dummy driver. After setting the dummy driver up i tried to play > something to it through xmms. Unfortunately i was not able to record > what i was playing to it. Is this possible or is the data dropped very > early. The main reason is that i tried to have a dummy soundcard which > copies its data to the real one. A real virtual soundcard. Note that dummy soundcard does nothing. It eats samples for playback and generates zero samples for capture. Jaroslav ----- Jaroslav Kysela <pe...@su...> Linux Kernel Sound Maintainer ALSA Project http://www.alsa-project.org SuSE Linux http://www.suse.com |
From: Mark K. <mk...@co...> - 2002-10-01 15:30:18
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Jaroslav, We are debugging xrun issues with alsa/jack/ardour and are looking for ways to isolate where the problem is being created on different platforms. Is it possible that this dummy sound card could be installed as a test case to isolate whether a specific machine's problems are being caused by its specific alsa driver? If so, how do we load this device? Thanks, Mark -----Original Message----- From: als...@li... [mailto:als...@li...]On Behalf Of Jaroslav Kysela Sent: Monday, September 30, 2002 9:29 AM To: val...@gm... Cc: als...@li... Subject: Re: [Alsa-user] snd-dummy On 29 Sep 2002, val...@gm... wrote: > Hello, > > i would like to know how much function has been implemented into the > dummy driver. After setting the dummy driver up i tried to play > something to it through xmms. Unfortunately i was not able to record > what i was playing to it. Is this possible or is the data dropped very > early. The main reason is that i tried to have a dummy soundcard which > copies its data to the real one. A real virtual soundcard. Note that dummy soundcard does nothing. It eats samples for playback and generates zero samples for capture. Jaroslav ----- Jaroslav Kysela <pe...@su...> Linux Kernel Sound Maintainer ALSA Project http://www.alsa-project.org SuSE Linux http://www.suse.com ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ Alsa-user mailing list Als...@li... https://lists.sourceforge.net/lists/listinfo/alsa-user |
From: Jaroslav K. <pe...@su...> - 2002-10-01 16:35:54
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On Tue, 1 Oct 2002, Mark Knecht wrote: > Jaroslav, > We are debugging xrun issues with alsa/jack/ardour and are looking for > ways to isolate where the problem is being created on different platforms. > Is it possible that this dummy sound card could be installed as a test case > to isolate whether a specific machine's problems are being caused by its > specific alsa driver? Yes, you can also emulate various hardware constraints in this code. See the beginning, there are defines for RME9652 emulation and UDA1341. > If so, how do we load this device? insmod snd-dummy.o Jaroslav ----- Jaroslav Kysela <pe...@su...> Linux Kernel Sound Maintainer ALSA Project http://www.alsa-project.org SuSE Linux http://www.suse.com |