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
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
>
> 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
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.
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.
Hi All,
IÂ’ve just built timidity++ 2.13 and IÂ’m trying to use the jack output
driver, but with no luck so far. Actually, IÂ’m trying to use it in alsa
sequencer mode with jack outputs.
IÂ’ve 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 donÂ’t seem to be any error messages from jack, so I
canÂ’t 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
-------------------------
_________________________________________________________________
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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.
--
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
>
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
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