Linux-audio-user February 2003

linux-audio-user@lists.linuxaudio.org

114 participants
130 discussions

[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

21 years, 1 month

[linux-audio-user] GWC & libsndfile

by Howard Sanner

I'm trying to compile Gnome wave cleaner. When I run configure, it tells me that I need libsndfile 1.0.0 or greater. I already downloaded libsndfile 1.0.4, and did the usual configure/make/make install. However, GWC's configure program still gives me the same error message. I don't know what's going on. Thanks. Howard Sanner flagstad(a)mindspring.com

22 years

[linux-audio-user] meeting in Birmingham, UK?

by Daniel James

Are there any list members who are planning to go to the LinuxUser & Developer Expo in Birmingham, UK on the 15-16 April? If so we could organise a Linux audio get-together at some point during the event - maybe somewhere near the Rosegarden stand that I believe is going to be in the .org area. I was thinking of hosting an LAU event down here on the Isle of Wight, but Birmingham is much easier to get to for most people in the UK. Daniel

22 years

[linux-audio-user] Jack gentoo ebuild

by Jon Ellis

I just checked a new (~X86 masked) ebuild into gentoo cvs for the 0.50.0 release. The old (0.34.0) ebuild is still there and will probably stay until i work out if anything is using it. If you know of any packages that rely on the 0.34.0 version please let me know. Cheers j.

22 years

[linux-audio-user] delta44 and direct recording

by John Bleichert

Hello All I'm evaluating a Delta44 sound card to use with Ardour and Audacity (Audacity until Ardour stabilizes, and maybe afterward). I've grabbed the manual for the 44 from the M-Audio site to check it out. The 2 example recording layouts they provide in the manual require an M-Audio 'Audio Buddy' (or something like it) to get a proper line level. now, I've been recording with my SBLive for a coupla years now and my guitar multi-effects pedal has given me the line level Ive needed. Will I actually need one of these Audio Buddy preamps? What have been the experiences here with and without them? Any? Also, I'll be adding a Behringer mixer to the setup - will I be able to drive the appropriate levels into the Delta44 from mic'ed guitar, bass, drums and vocals? Do I really need this Audio Buddy thing? It seems rather odd that it would be required and not a word about it spoken on the Dellta44's website. It was my intention to run all the instruments into the mixer (e.g. the Behringer UB1204) and then from the mixer to the inputs on the Delta44. Is this idea flawed? Advice appreciated. I'm willing to spend a few bucks on the card and mixer but I want to make sure I'm getting what I want. Thanks in advance for any advice or suggestions - JB # John Bleichert # http://vonbek.dhs.org/latest.jpg

22 years

[linux-audio-user] [OT] venting re: Mandrake 8.2

by Dave Phillips

Greetings: Sorry to be a pain, but I'm having so much trouble installing and configuring Mandrake 8.2 that I'm beginning to doubt whether it can be done. Here's a partial list of my trials and tribulations: 1. The CD drive is actually a Toshiba DVD drive. Mandrake installed all right from it but afterwards is unable to read from any disc I insert. All I get is an uninformative "input/output error". 2. The sound configuration is a joke, right ? I boot into KDE and hear the KDE tune just fine, but when I try to run any bundled sound application (XMMS, MIDI synth, etc) I get an error saying that the output device is unreachable. When I test sound using the Drake tool it says it's playing an 8-bit sample but I hear nothing. The tool asks only if you do or do not hear the sample, it offers no advice on what to do if you don't hear anything. 3. The Internet configuration informs me that I have no connection even when I do. 4. The GCC 2.96 is weird, yes ? When I ran ./configure for the latest ALSA I get an error telling me that the C compiler cannot produce executables. This, whether I'm normal user or root. Whafug??!! So is it just me or are these well-known problems with Mandrake ? I'm setting up two machines here, both experience the same problems with Mandrake 8.2. I'm going to reinstall it once more then I'll give up and move on to Red Hat. The only reason I'm installing it at all is because the client wants it. Any and all advice will be vastly appreciated ! Best regards, == Dave Phillips The Book Of Linux Music & Sound at http://www.nostarch.com/lms.htm The Linux Soundapps Site at http://linux-sound.org Currently listening to: John Coltrane, "After The Rain"

22 years, 1 month

[linux-audio-user] Best list for Linux MIDI questions?

by Larry Troxler

Hi all, I asked this once a couple of years ago, but not only do I not remember the answer (I think it may have been it's ok to post here but we should really rename the list), but the answer may have changed since then. For Linux MIDI topics (not audio, but MIDI), what would be the most appropriate list to post on? For my purposes, I think alsa-user since ALSA is what I use. Any thoughts? I take it that there is not a linux-midi-users list! Larry

22 years, 1 month

[linux-audio-user] [ANNOUNCE] tapiir-0.7.0

by Maarten de Boer

Hello, I just released a new version of tapiir. Tapiir now supports jack. Tapiir can be found at http://www.iua/~mdeboer/projects/tapiir/ Tapiir is a simple and flexible audio effects processor, inspired on the classical magnetic tape delay systems used since the early days of electro-acoustic music composition. It provides a graphical user interface consisting of six delay lines, or "taps", which can introduce an almost arbitrarily big or small delay to their inputs and can be feed back to each other. A wide set of effects can be easily achieved by properly configuring and connecting the delay lines: complex echo patterns, resonances, filtering, etc. Delays, interconnections and gains can all be controlled in real time. Maarten

22 years, 1 month

[linux-audio-user] new to linux audio

by Christophe Vescovi

Hi everyone, I'm quite new to linux (and linux-audio) and have some basic questions regarding the audio tools on linux. I'm running Mandrake 9.0 with a patched 2.4.20 kernel and finally managed to install most of the applications I need (thanks to Thac's RPMs !!), mainly alsa, jack, ecasound, Muse, rosegarden, some soft-synth, did not try ardour yet ;-). I think I still need to enable capabilities in the kernel for jack, but I try to do things one by one. When reading articles on low-latency linux, xruns are often mentionned but I can not figure what it exactly means, could someone explain me that -surely- simple thing ? The other question is about jack. Does Jack enable synchronisation between HD recorder (ecasound, ardour) and midi sequencer (Muse for example) ? I saw something about the transport feature of jack, but does not know exactly what it does. Many Thank, Christophe

22 years, 1 month

Re: [linux-audio-user] Alsa with OPL3-SA2 on Asus Laptop

by Chris Bray

Takashi (and All), thanks for you help but I still cant get it to work... I downloaded the latest RC7 and built with --with-debug=detect on the configure line. ./utils/alsaconf finds the OPL3SA2 but the module still wont load. One of the messages ends with detect=0xFF or the like I'm sorry, I forgot the exact line. How do i tell the pnp Id ? pnpdump has a line with YMH0800/-1 in it and there are lots of YMH0020 and YMH0021's floating around but as I'm a bit of a newbie I'm not quite sure where to look ! Thanks again to all for your help. Is there anything else I can do ? Chris. > Message: 5 > Date: Mon, 17 Feb 2003 12:50:43 +0100 > From: Takashi Iwai <tiwai(a)suse.de> > To: linux-audio-user(a)music.columbia.edu > Subject: Re: [linux-audio-user] Alsa with OPL3-SA2 on Asus Laptop > Reply-To: linux-audio-user(a)music.columbia.edu > > At Thu, 13 Feb 2003 17:43:34 -0000, > Chris Bray wrote: > > > > Hi All; > > > > I've been trying for a couple of days now to get > > any sound from my laptop (rebadged Asus L7000, > > Slackware 8.1, vanilla 2.4.20) and seem to be > > getting nowhere fast. > > > > I've tried OSS/Free and Alsa (0.9.0rc2 and 0.5.12a) > > and can't seem to get anything working. > > > > OSS just hangs as I modprobe the module, no log entries > > or anything I can find. > > > > isapnp.conf contains all the settings that Windows > > is using and everytime I try to get it running with > > > > modprobe snd-opl3sa2 (or snd-card-opl3sa2) > > > > I get > > "Yamaha OPL3-SA Soundcard not found or device busy" > > build the alsa driver once with --with-debug=detect. > it will show you more verbose kernel messages. > > also, check whether your pnp id matches with one of > YMH0020:YMH0021, YMH0030:YMH0021, YMH0800:YMH0021, NMX2200:NMX2210 > where the ids are card:device. > > > Takashi

22 years, 1 month

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Linux-audio-user February 2003