Linux-audio-user January 2005

linux-audio-user@lists.linuxaudio.org

207 participants
246 discussions

[linux-audio-user] configure terratec phase 26 USB

by pascal lawrynowicz

Hello, Few times ago i ask this list about the terratec phase 26 usb device. now i've got it and try to make it work with mandrake 10.1 community And not everything go the right way. I cannot make it work properly. Maybe first i must tell that i'm a newbie and all knowledge about linux is hard to understand for me. So i need help and i hope you can help me. Here is a little descrition of the problem : mandrake 10.1 community / kernel : 2.6.8.1-10mdksmp SMP 686 gcc-3.4 / ALSA v 1.0.6 / kde desktop The good : -phase 26 usb seems to be recognize. I've got the the speaker at the bottom of my desk. Kmix give me : out = 1 fader, 1 pan and a green light ; in = nothing -kde configuration : config system > sound system activated ; test sound : ok i can hear something The bad : -no sound closing windows, clicking, mouse etc... -cannot play a cd -audacity : an error accurs during I/O audio initialisation. Cannot play or record audio. Error : host error (no dev inside) -amarok : nothing to listen -rosegarden cannot open -xmms : nothing -using aslamixer under su give : alsamixer : v1.0.6 card : PHASE 26 USB(16/48) chip : USB Mixer item : PCM i have 4 graduated 'towers' : #1 is 86<>86 PCM #2 is 86<>86 PCM #3 is 86 PCM #4 is 86 PCM all are unmuted -modinfo soundcore filename : /lib/modules/2.6.8.1-10mdksmp/kernel/sound/soundcore.ko.gz description : core sound module author : Alan cox license : GPL alias : char-major-14-* vermagic : 2.6.8.1-10mdksmp SMP 686 gcc-3.4 ddepends : -proc/asound/cards 0[USB1648 ]:USB-Audio - Phase 26 USB(16/48) Terratec Phase 26 USB (16/48) at usb-0000:00:ld.2-2, full speed -proc/asound/devices 0:[0- 0]:ctl 16:[0- 0]:digital audio playback 24:[0- 0]:digital audio capture 8:[0- 0]:raw midi 33: :timer -proc/sound/modules 0 snd.usb.audio -proc/asound/timers G0 system timer : 1000.000us (10000000 ticks) P0-0-0: PCM playback 0-0-0 : SLAVE P0-0-0: PCM capture 0-0-1 : SLAVE -proc/asound/pcm 00-00: USB Audio : USB Audio : playback1 : capture1 -proc/asound/version Advanced Linux Sound Architecture Driver Version 1.0.6 compiled on Sep 8 2004 for kernel 2.6.8.1-10mdksmp (SMP) -etc/modules.conf is empty I try to use infos found on ALSA website for snd-usb-audio but without any succes, for example i don't know if i've to change datas or names... No success trying to add .asound.rc file in home directory... please,help I tried many HOWTOS, and website. But more with your advice can you give me address of website that treat of this particulary case. Pascal,

20 years, 2 months

[linux-audio-user] Re: Raton-Conductor

by David Baron

On Tuesday 18 January 2005 18:03, linux-audio-user-request(a)music.columbia.edu wrote: > I recently created a Python module that taps right into the ALSA sequencer, > and it makes it possible to build MIDI applications very quickly. Your > suggestion sounds like a neat project to do with such Python techniques, Like to have a look! > but I'm afraid I don't fully understand it yet (I tried googling for > MagicBaton, but all pertinent websites seem to point back to a defunct > product page). Yes, I think the whole thing, many years dated, is now defunct. I had fun with the program but only made use of it once to "hand-sync" a MIDI sequence into and around a solo voice with very much rubatto. > So, the idea is to conduct something using mouse motions, but what exactly > are you conducting? Are you affecting the way a .mid file is played, or > does MagicBaton provide some sort of virtual orchestra, or what...? MagicBaton came with a few synphonic MIDIs, some Mozart, Beethoven, etc.One could "rehearse",. that is, effect one channel at a time, and save the results (best use disabling tempo changes). Then, after being satisfied with the dynamics of the modified MIDI, one could conduct the whole thing. The program either simply played or enabled editing the MIDI files using the mouse as a baton.

20 years, 2 months

[linux-audio-user] stable? Ardour on debian

by Tobias Ulbricht

Hello LAD. Finally I'm back on this list and recording some music. After listening to your recordings and reading that you use ardour extensively, I wonder what your experience concerning stability of ardour is. I'm using the debian unstable package, with the versions: Ardour/GTK 0.548.1 running with libardour 0.851.1 jackd version 0.99.0 tmpdir /dev/shm protocol 13 Well, I tried several configurations with jackd up to high latencies. But ardour regularly crashes, while editing, inserting plugins or handling connections, or just playing back. Sometimes its ketting "Killed", sometimes it segfaults. * Is that still normal? * Is 256 MB RAM / 1 GHz Celeron not enough power for 2-5 simultaneous tracks? Otherwise it records fine (using an Audiophile 2496) and does not crash very often when recording. Greetings to all of you, developers/musicians. Tobias.

20 years, 2 months

Re: [linux-audio-user] How to ID channels etc.

by Eric Steinberg

Flo, Thanks for the tip! -Steiny ----- Original Message ----- From: "Florian Schmidt" <mista.tapas(a)gmx.net> To: "A list for linux audio users" <linux-audio-user(a)music.columbia.edu> Subject: Re: [linux-audio-user] (no subject) Date: Thu, 20 Jan 2005 11:54:43 +0100 > > On Wed, 19 Jan 2005 21:25:43 -0500 > "Eric Steinberg" <ergomatic(a)mail.com> wrote: > > > 3. With a multi channel device, can multiple instances of mplayer > > use specific outputs? How can this be assigned? > > for this you need .asoundrc magic to split the multichannel device into > stereo [or whatever] pairs. But usually the professional multichannel > devices allow only one app, so a mixed treatment using dmix is needed. > > http://alsa.opensrc.org/index.php?page=1712+.asoundrc > > might give you an idea about it. > > Flo > > -- > Palimm Palimm! > http://affenbande.org/~tapas/ -- ___________________________________________________________ Sign-up for Ads Free at Mail.com http://promo.mail.com/adsfreejump.htm

20 years, 2 months

Re: [linux-audio-user] ams PCM input?

by Jon B

> So where are all the people who always chime in with "pd can do this?" pd can do this. :-) the fiddle~ object does pitch recognition (though only for the fundamental frequency), and then plug the midi output to a virtual alsa midi port and then into whatever program you want to use. but i have no idea how accurate/fast/reliable fiddle~ is. i don't know why they don't make guitars (i assume this is for guitar) with a small current on each string and calculate the note from which frets and strings are making electrical contact. you couldn't do vibrato, but that would be a great way to input exact notes. but then you could combine that with the pitch and envelope recognition to get more of the timbre of the instrument. it would just give a definite value for the pitch.

20 years, 2 months

[linux-audio-user] Re: CPU temperature, mp3 decoding and

by Jon B

> Rather than just complaining about it why not inform the developers of > the problems, file a bug report. > If you run the package from a terminal you might get some error messages > which can help resolve the problem. I always fill out bug reports when I find a reproducible problem. The latest was yesterday (to a certain very popular web search engine's email service), and included screenshots and detailed instructions for reproduction. I am still allowed to complain because: 1. Often they are not reproducible; the program just commits suicide and I can't get it to do the same thing again. 2. I am filling out bug reports all the time! :-)

20 years, 2 months

[linux-audio-user] Last attemp at USB m-audio quattro.

by Timothy Alan Gorman

Hello all, I am trying to get my usb m-audio quattro to work... Here's the system p4 2.4.27 audioslack kernel. I used the .asoundrc from the alsa page with no success.. I can give more details when I am in front of the system. I guess it comes to this... Does anyonde use this card ? Can I see you asoundrc file ? what does the correct jackd command look like to start it in 24/48 4 in 2 out? (and other modes) I will post Info on the web after I get it running as to help others in the future. Thank you all so much for being the resource on the internet for linux and other audio.... ;) THank all of you

20 years, 2 months

[linux-audio-user] CPU temperature, mp3 decoding and sample rates

by Shayne O'Connor

hi there, one of my continuing quests on linux is trying to find a suitable mp3 player to ... play my mp3's. what i need is something like amarok (my favourite), rhythmbox or muine that has multiple output interfaces; intuitive mp3 browser/library; cover art display; slick interface; and system tray/plugin support. the thing is, it's not hard to find these programs (they are listed above), but they are all extremely unstable (i think gstreamer could be to blame) and i find that they all put quite a load on the processor. i'm regularly hitting a cpu temperature of 63 degrees just by playing back mp3's ... i think this is quite a high temperature to be running at (increasing, under further load to about 70 degrees - this is on a cool day) just to be playing mp3's. what are other people's experiences here? am i being too paranoid? due to the instability of most players that incorporate user-friendly mp3 library browsers, i've mainly been using beep-media-player as far as linux apps go, and it's cool cos it allows you to configure the playback samplerate for mp3's. but, even at 22050 sampling rate, i reach temp of - at most - 60 degrees. however, i am now using winamp under wine, and configuring it to the same sample rate yields max cpu temperature of 54 degrees - a much more comfortable level for me. as a comparison, when doing real-time recording with jack, i can have a few clients, a vst plugin, and recording happening while never going far from about 65 degrees ... are the mp3 decoders/streamers in linux really crap, or do i need to look at better cooling for my cpu/motherboard? shayne

20 years, 2 months

[linux-audio-user] (no subject)

by Eric Steinberg

Some questions, for purposes of general knowledge: 1. How can the version of the currently running AlSA driver be determined? 2. With multiple soundcards, how can a playback device be specified with aplay? With mplayer, xmms, or other apps? 3. With a multi channel device, can multiple instances of mplayer use specific outputs? How can this be assigned? -- ___________________________________________________________ Sign-up for Ads Free at Mail.com http://promo.mail.com/adsfreejump.htm

20 years, 2 months

[linux-audio-user] Re: Audio interface recommendations

by Jon B

> Of course, I hadn't thought of connecting the outs to the ins... > Here are the results: > It seems the anti-alias filter depends on the sample rate, which is cool. That's really cool. The 96000 and 88200 are the same file, looks like. What program is that? I wonder how the Indigo IO that I just ordered measures up. :-) Jon

20 years, 2 months

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Linux-audio-user January 2005