Linux-audio-user September 2003

linux-audio-user@lists.linuxaudio.org

115 participants
118 discussions

[linux-audio-user] DSP2000 C-PORT and MIDI input

by Emiliano Grilli

Hello, 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... Any suggestions? TIA -- .-----------------------. | Emiliano Grilli | | emillo(a)libero.it | | Linux user #209089 | | http://www.emillo.net | '-----------------------'

20 years, 2 months

[linux-audio-user] ams, jackd & X as root? on debian

by Eric Dantan Rzewnicki

hello, 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: QT_LIB_DIR=/usr/lib/qt3/plugins/styles QT_BIN_DIR=/usr/share/qt/bin QT_INCLUDE_DIR=/usr/include/qt 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 to help: box1:/usr/lib# ln -s /usr/local/lib/libjack.so.0 libjack.so.0 Is that the correct sollution? but, now: box1:/home/eric/audio_code/ams-1.5.5# ./ams 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, Eric Rz. 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

20 years, 2 months

[linux-audio-user] ! hdsp9652 again yikes

by Aaron Trumm

DAMMIT aaron! last question for now - this is for anybody - what is this?: (it was mentioned in a thread on alsa-devel) hdspconf GUI -------------- Aaron Trumm NQuit www.nquit.com --------------

20 years, 3 months

[linux-audio-user] Flash audio

by Lloyd R. Prentice

Hello, Does anybody know if there is a non-proprietary protocol that will stream audio to Flash player clients? Best wishes, Lloyd R. Prentice

20 years, 5 months

[linux-audio-user] Trying to record audio from line in and additional questions

by Sylvain Robitaille

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, alsa-lib-0.9.0rc7, alsa-tools-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): CONFIG_EXPERIMENTAL=y CONFIG_MODULES=y CONFIG_MODVERSIONS=y CONFIG_KMOD=y CONFIG_LOLAT=y CONFIG_LOLAT_SYSCTL=y CONFIG_RTC=y CONFIG_SOUND=y 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 snd-rawmidi snd-seq-device] 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 software? 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 certain components. - 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 ----------------------------------------------------------------------

20 years, 5 months

[linux-audio-user] decent (abstract ?) sequencer for use with pd ?

by Jan Baumgart

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 a 32-grid just ain't enough to control something like grain-loop machine, or whatever.... 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.. cheers ! jan. -- NEU FÜR ALLE - GMX MediaCenter - für Fotos, Musik, Dateien... Fotoalbum, File Sharing, MMS, Multimedia-Gruß, GMX FotoService Jetzt kostenlos anmelden unter http://www.gmx.net +++ GMX - die erste Adresse für Mail, Message, More! +++

20 years, 6 months

[linux-audio-user] sticky windows [may be OT]

by "horsh

Hi, 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 virtual desktops, 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" feature? horsh

20 years, 6 months

[linux-audio-user] jaming over the internet?

by Robert Jonsson

Hi, 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? ;) /Robert

20 years, 6 months

[linux-audio-user] Weird glitchy noise in Mozilla

by Mark Knecht

Hi, 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 http://www.skale.org 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 under Linux? BTW - much non-Alsa audio from Games works fine, but also drives all 26 playback channels. Should it really work this way? Thanks, Mark

20 years, 6 months

[linux-audio-user] Compiling Audacity

by Anahata

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 `wxArrayString::~wxArrayString(void)' 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: libwxbase2.4-dev wxwin2.4-headers libwxgtk2.4 zlib1g-dev libwxgtk2.4-dev 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? -- Anahata anahata(a)treewind.co.uk -+- http://www.treewind.co.uk Home: 01638 720444 Mob: 07976 263827

20 years, 6 months

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Linux-audio-user September 2003