I have recently bought the ice1712-based DSP2000 C-PORT from Hoontech and
I'm really satisfied with it. I only have a little problem: MIDI!
The card has 1 MIDI in and 2 MIDI out, and the 2 outs are working fine.
However, I can't get anything from MIDI in :-(
Anyone has that card and can confirm this problem or I have to check my
hardware? Maybe ALSA get confused? With aconnect I see 2 devices (0 and 32)
both as inputs and as outputs...
I've tried on the staudio.com forum and they suggest to test the card under
windows, but (ehm..) I don't have it...
| Emiliano Grilli |
| emillo(a)libero.it |
| Linux user #209089 |
| http://www.emillo.net |
I have jack installed and working now. So, now I'm trying to get
AlsaModularSynth compiled and running. Has anyone else accomplished this
in debian stable (woody)?
I installed libqt3-mt (along w/everything it depended upon), fftw-dev,
fftw2, sfftw-dev, sfftw2 and ladspa-sdk to get ladspa.h. I've tried to
edit the top of make_ams to agree with the location of the qt3 libs, bin
and include directories on my system as best as I could figure ... but
I'm not sure I got it right:
it seems to compile OK when I do:
make -f make_ams
though there are a lot of warnings about comparing signed to unsigned
and other warnings that flew by. Are these benign?
Anyway. I end up with an executable ams. When I run ./ams I get this:
./ams: error while loading shared libraries: libjack.so.0: cannot open
shared object file: No such file or directory
I have that in /usr/local/lib/libjack.so.0 so creating this link appears
box1:/usr/lib# ln -s /usr/local/lib/libjack.so.0 libjack.so.0
Is that the correct sollution?
ams: cannot connect to X server
I assume this is because X is running as me (eric) and not as root. I'll
try getting out of X and starting it as root as soon as I finish writing
this message. But, is there a way to let root connect to the X server
that's running as eric?
I was sort of ok (well, not really, but I'm giving it a try) with the
idea of running jackd and its clients as root ... but, running X as
root, too? that makes me more nervous, somehow... maybe I shouldn't be
nervous about that ... I'm not sure.
anyway. i'll give it a shot with a root X session.
I'm thinking that maybe I should patch and recompile the kernel and
recompile jack to enable capabilities so I don't have to run as root.
Do those of you running jackd as root also run your X session as root?
Thanks for listening,
PS If all of this has been covered before and my questions are annoying
you, feel free to send me to the archives. I try to follow jackit-devel,
but most of it seemed to go over my head before I actually started to
try it. So, re-reading the past couple months would probably do me some
good now that I have the real thing in front of me. -edrz
First the vitals:
The computer system is a 400 MHz K6-2 with 512 MB memory, and a Hercules
Fortissimo II (Cirrus Logic Soundfusion CS4624 processor) sound card.
The OS is Linux-2.4.20 (built up from Slackware-8.0, with kernel patches
and package upgrades). I have the following ALSA components installed:
alsa-driver-0.9.0rc7, alsa-oss-0.9.0rc1, alsa-utils-0.9.0rc7,
The kernel is mostly monolithic, with the following options (abridged to
include only those I know are relevant; if folks want the complete
listing, I can easily provide it):
ALSA is the only component that I have modularized (only because I don't
have the impression it can easily be just built-in, actually), and the
following modules are loaded:
Module Size Used by
snd-mixer-oss 11120 1 (autoclean)
snd-cs46xx 58096 1 (autoclean)
snd-pcm 50752 0 (autoclean) [snd-cs46xx]
snd-timer 9392 0 (autoclean) [snd-pcm]
snd-ac97-codec 26912 0 (autoclean) [snd-cs46xx]
snd-rawmidi 11808 0 (autoclean) [snd-cs46xx]
snd-seq-device 3824 0 (autoclean) [snd-rawmidi]
snd 27280 0 (autoclean) [snd-mixer-oss snd-cs46xx
snd-pcm snd-timer snd-ac97-codec
I've been using Linux with OSS and a Media-Vision Pro-Audio-Studio-16
soundcard for years, and have basically had very little trouble with
that combination. Upgrading to Linux-2.4.x caused the sound output to
be rather noisy, so I recently took advantage of the situation to buy a
new soundcard, and upgrade to using ALSA (which I've been wanting to do
so I can investigate certain rather exciting applications such as Ardour
and the new Rosegarden).
The applications I've been using for years with OSS, (notably Dap,
Mixviews, Aumix, and a few others) all appear to mostly be working fine,
presumably through the ALSA OSS emulation. Aumixer now shows some
lables (PhoneIn and Video) which don't correspond to any inputs I have
on my soundcard, while some others (IGain and Line1) don't appear to
have any use, given the way I'm currently using the card (signal from a
hardware mixer going to the Line input, and signal from the main, front
line output going back to the mixer).
I can play back sound files without any problem. In fact I've also tried
a few new (to me) applications, such as Audacity, ProTux, and (though
I'm having problems with it I won't cover here) Ardour, and they too
play back sounds quite nicely (the sound is "grainy", though, perhaps I
need to investigate the Low-Latency issues more, or increase the size of
some buffer somewhere).
I can send sound to the computer, and listen to that sound coming back
from the computer (adjusting the level with the "line" level in Aumix,
for example), but if I try to record that sound (in any of the
applications I've tried, including all those listed above), with "record
enable" selected in Aumix, I get no audio recorded (silent sound file).
Also, I find it interesting to note that I can record-enable only one
input source at a time (contrary to my old Media-Vision card). I'm
assuming that's a function of the hardware, though and can't be fixed in
Finally, we get to my questions:
- Can someone point me in the right direction(s) to find a solution to
this, so I can record audio (preferably from numerous sources) into
my computer? I'll be perfectly happy with pointers to documentation
(though I expect to get at least some to documentation I've already
read, because I think I've repeatedly gone through all the
documentation I already found myself), and suggestions to upgrade
- I've tried to start Jackd at system boot, with the following command
added to my rc.local file:
/local/bin/jackd -d alsa -d cs46xx -p 512 &
Jackd fails to start at that point (I'm afraid I haven't noted the
exact error message, but I can make a point of doing so next time I
reboot the system), but it does start when run manually from a root
shell. Does anyone have any idea why jackd might not start at boot
time, (perhaps the ALSA modules aren't loaded yet at that time)? If
I understand my boot sequence properly, kernel modules are setup
(via "depmod -a") before rc.local is run, so the modules may not be
loaded, but they should by that point be loadable (they load
automatically by the kernel in regular use).
- Is it possible to build ALSA into the kernel?
- on a slightly unrelated point, my new soundcard has a built-in
synthesizer with at least some features I'd like to explore. Though
I know this won't replace any of my hardware synths (or some of the
software synths I've begun to play with), I'd like to play around
with some of its built-in sounds, and probably use it (at least
until I get something better) as my "preset playback" device,
controlled from an external MIDI controller. Does anyone have
suggestions for how I might go about that? (again, simple pointers
to existing documentation would be more than appreciated).
In case people are wondering about my specific intended application,
I'd like to use a Roland Octapad to trigger percussion sounds from
the soundcard's built-in synth.
Thanks in advance for any pointers people can provide....
Sylvain Robitaille syl(a)alcor.concordia.ca
Major in Electroacoustic Studies Concordia University
Faculty of Fine Arts / Music Department Montreal, Quebec, Canada
hi fellow linuxicians !
Is there any sequencer out there, that is able to control abstract musical
paramenters (simply numbers, so to speak :) for synth-systems like pd, beast
etc... there may be some fine midi sequencer, but sometimes note-on /offs on
32-grid just ain't enough to control something like grain-loop machine, or
I'm having something in mind, what could be something like a OSC(open sound
control) sequencer...with programmable event/signal templates like /start or
/stop ... and nifty curve-based drawing tools, like those found in sequencer
with decent automation-handling (eg. logic,protools,...)
I'm just wondering if there's anything like that out there
or maybe a fitting (sequencer) develompent-library..
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dealing with linux GUI audio applications
I have found that the following
feature would be usefull:
I want to stick or glue some windows of
*different* applications together so that
they be organized in "solid body"
i.e. so that I could minimize/restore,
move them together.
(you can find an example of similar behavior
in how xmms organizes its subwindows)
I know that some window managers offer
"border gravity" and some others offer
but sometimes it's just not enough.
As fas as I can tell the linux audio
goes the unix way in the sence that there are
many small interacting programs each doing
its own thing. So one needs to have *many*
small GUI apps open at the same time.
And the feature Im talking about would
be realy usefull.
So my question is:
Which window manager support such "sticky"
Anybody know of an application that allows streaming of midi and/or audio over
the net for the purpose of allowing several people to jam together?
I seem to remember having heard of some such app for windows ages ago... but
that doesn't count does it? ;)
I run across this problem a lot in Linux. Maybe someone can help me
make my Gentoo system do audio better. All the straight Alsa stuff works
well. However, when I'm browsing around I come to web sites that
probably want to play some audio, but this is Linux and Alsa, so things
don't work easily. At the web site
I start getting this repeating glitch noise every 8 seconds or so. It
hasn't happened every time I've visited the site today, but it's
happened a lot of times.
In hdspmixer I see this glitch on all 26 playback channels, by the
way, so I'm assuming that this means it's some sort of OSS problem, but
I'm not sure.
What's wrong with my setup of Alsa, which in most other ways works
just fine, and why can I also not get mp3 (well, really xmms) to work
BTW - much non-Alsa audio from Games works fine, but also drives all
26 playback channels. Should it really work this way?
Let me first say I'm not terribly used to compiling Linux apps. I
usually intall Debian packages with apt-get. So I'm probably making a
very simple error, but I'm asking here because someone else might well
have built Audacity from source.
So here's the problem:
Whe I try compile Audacity 1.2 beta,
I get screefuls of messages like this:
libaudacity.a(PCMAliasBlockFile.o): In function
`PCMAliasBlockFile::BuildFromXML(wxString, char const **)':
/usr/include/wx/filename.h:100: undefined reference to
`wxFileName::Assign(wxFileName const &)'
/usr/include/wx/filename.h:100: undefined reference to
The system is Debian, mostly stable but I've installed quite a few bits
and pieces from testing. In response to earlier problems with
config and compilation I installed:
But I can't see what's missing now and I don't understand enough about the
error messages, not being intimately falmiliare with libwx (it must have
something to do with that)
Any ideas, please?
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