Linux-audio-user

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20661 discussions

[linux-audio-user] New Kernel with Sound; Victory at last!

by Martin McCormick

Last weekend, I finally got ALSA installed and working. I guess the third week is a charm. My thanks to everybody on the list who helped me get on the right track. The Debian package archive had alsa-utils, but they appear to have not yet been updated. I got the most recent one from the alsa-project web site and it appears to be fine. The only slight ill effect I noticed was that all the man pages ended up in a directory that Debian Linux doesn't normally use in the man hierarchy, but the fix was a simple matter of copying the files in to the preferred directories. amixer works properly as far as I can tell. Is there a listing anywhere of the purpose of the simple mixer controls? A few of them aren't obvious as to what they do. By turning on the mono-output switch, I even patched sound card sound to the tiny speaker that is local to the P.C. That hasn't been possible since my wife had Windows NT on this system and I remember hearing sound through that speaker. Another interesting thing I noticed was that the Capture switch on Simple mixer control 'Master Digital', seems not to prevent recording of audio. The whole effort was well worth the time and hats off to all those who have written the ALSA software. One thing I discovered by accident is that /dev/dsp now works in full duplex. It used to be that if it was used for recording, one couldn't play any audio through the sound card without a "device busy" message and an immediate stop to the program. Now, /dev/dsp for capture appears to be different from /dev/dsp for playback. That is impressive. Martin McCormick WB5AGZ Stillwater, OK OSU Information Technology Division Network Operations Group

21 years, 6 months

RE: [linux-audio-user] Quattro USB

by Matthew Allen

I never saw it as a vendetta, just more of a "this thing stole months of my life away, please don't let it steal months from yours" :) m. > -----Original Message----- > From: linux-audio-user-bounces(a)music.columbia.edu [mailto:linux-audio- > user-bounces(a)music.columbia.edu] On Behalf Of Josh Steiner > Subject: Re: [linux-audio-user] Quattro USB > > i really just need to point out that frank seems to have a personal > vendetta against the quattro. it does violate the USB spec in a minor _________________________________________________ Scanned on 21 Apr 2004 17:50:42 Scanning by http://erado.com

21 years, 6 months

RE: [linux-audio-user] Quattro USB

by Reuben Martin

> > Not having purchased the Quattro yet, can you or anyone else > reccomend the > Quattro, or is there a better USB multi-input unit out there > that I should > look at? > I would recommend against USB audio devices. I'm sure there are plenty of people who would swear they've had nothing but positive experience with USB devices, but just the same they are a nightmare. The USB audio specs are are defined in a manner that create a real mess for people who write the drivers for them. >From the jack dev list: "USB spec defines the isochronous data packets for the fixed time length (1ms). and, obviously, 44100Hz cannot be split by 1ms in integer." Also, read this: http://boudicca.tux.org/hypermail/jackit-devel/2003-Sep/0167.html I would strongly recommend using a PCI device if at all possible. -Reuben

21 years, 6 months

[linux-audio-user] live linux audio at the la laptop battle

by Brian Redfern

I'm compteting tonight at the la run of the travelling laptop battle, at the knitting factory around 9pm, so if anyone is interested I'm using termintorX with suse 9.0 and a dell laptop, I was in fact going to use my quattro, but its too darn buggy, it dies after about an hour, and since I have to leave my laptop on stage for extended amounts of time, I'm just using teh built in i810 sound, which though its not as high quality as the quattro, it doesn't randomly freeze my machine up like the quattro will. I wonder if anyone is using the roland/edirol intefaces, they appear to be basically guarunteed to follow the usb standards.

21 years, 6 months

[linux-audio-user] Frequency Analysis app

by Richard

Well the best all round tool is certainly baudline. It's expressedly made for real time spectrum analysis ,noise measurement of all kinds .. i mean it's worth quite a long look. Trying it might get you hooked. The best the sound card the more you'll get out of it. http://baudline.com/ it's free :) Ric Baudline is a real-time signal analysis tool and an offline time-frequency browser. It has a built in tone generation capability and it can play back audio files with a multitude of effects and filters. Designed for environmental analysis missions that range from modulation parameter measurements to searching for transient signals that go bump in the night, baudline combines fast digital signal processing, versatile high speed displays, and continuous capture tools for hunting down and studying elusive signal characteristics.

21 years, 6 months

[linux-audio-user] timidity and jack problem

by Stuart Allie

Hi All, Ive just built timidity++ 2.13 and Im trying to use the jack output driver, but with no luck so far. Actually, Im trying to use it in alsa sequencer mode with jack outputs. Ive tried timidity Oj file.mid and timidity iA B2,8 Oj file.mid with the jack patch bay open, and I briefly see two ports TiMidity:out_1 and out_2 (or something like that) appear for a split second and then disappear again. Using qjackctrl, there dont seem to be any error messages from jack, so I cant see what the problem is. Any suggestions anybody? Thanks, Stuart ------------------------- Dr. Stuart Allie Systems Studies Hydro Tasmania 4 Elizabeth Street Hobart Tasmania +61 3 6230 5079 stuart.allie(a)hydro.com.au ------------------------- _________________________________________________________________ Find love today with ninemsn personals. Click here: http://ninemsn.match.com?referrer=hotmailtagline

21 years, 6 months

[linux-audio-user] Re: Radium

by Kjetil Svalastog Matheussen

Michal Seta: > > Hi Kjetil, > > Is radium supposed to be useable at all under linux? > I got it compiled, it opens up fine, I can enter notes but don't seem > to be able to connect to any midi port... what am I missing... > Do you see the "Midi Properties" windows that is on this screen-shot: http://folk.uio.no/kjetism/radium/pictures/v062_linux.png All midi-ports should show up there. --

21 years, 6 months

RE: [linux-audio-user] Quattro USB

by Reuben Martin

Not through Jack it won't. > > > Quoting Reuben Martin <MartinR(a)jbu.edu>: > > > Ardour: yes. > > Audacity: no. > > You sure about that? > I do believe that the quattro will record four inputs in audacity. > In fact, I'm sure I remember doing so. > > Austin >

21 years, 6 months

RE: [linux-audio-user] Quattro USB

by Reuben Martin

Ardour: yes. Audacity: no. > Hello all, > I have seen many posts about the Quattro, and would like to > ask a question: > What I am planning to do is use the Quattro to record from a > Mackie CFX16, > which gives me 4 separate outputs. > > >From what I have read, the Quattro will handle the 4 > separate inputs, and jack > would possibly be able to send these separate signals to a > piece of software > that can record each as a separate track. (Ardour, Audacity maybe?) > > Does that sound like a reasonable setup? > > Any suggestions, opinions, etc. would be GREATLY appreciated. > > Thanks, > Wade

21 years, 6 months

[linux-audio-user] Quattro USB

by Wade Winright

Hello all, I have seen many posts about the Quattro, and would like to ask a question: What I am planning to do is use the Quattro to record from a Mackie CFX16, which gives me 4 separate outputs. >From what I have read, the Quattro will handle the 4 separate inputs, and jack would possibly be able to send these separate signals to a piece of software that can record each as a separate track. (Ardour, Audacity maybe?) Does that sound like a reasonable setup? Any suggestions, opinions, etc. would be GREATLY appreciated. Thanks, Wade

21 years, 6 months

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Linux-audio-user