Linux-audio-user May 2004

linux-audio-user@lists.linuxaudio.org

154 participants
165 discussions

[linux-audio-user] Designing system for 'virtual' whole house audio system that deals with all kinds of audio sources - is ecasound the answer?

by Robert Rozman

Hi, I'm designing integrated home automation/entertainment system based on Linux and other open source apps. I have several possible sound sources (like Festival as speech synthesis, music players, voip or ordinary telephony applications, intercom) and several sound destinations (rooms in my house - can be either remote desktop running some network audio client or separate output on local audio card). Now I'd like to implement 'virtual' audio router/mixer in software that can be dynamically controlled from other program language (Perl is preffered in my case). I'd need to combine several audio sources to each sound destination (like big software switching/mixing/routing black box), dynamically change volumes, add/remove chains etc... I'd like to deal with all this with Ecasound (it can be controlled from Perl) - or should I use some other program ? Some possible scenarions: - when internet voice call comes in, then I connect to certain channel on audio card for certain room (route two way audio stream that comes from Internet to certain audio destination/source) - when watching TV (sound going to some audio card output), speech synthesis would like to announce something (I'd like to volume down TV audio and mix speech, and then go with TV volume to normal level) - from one room I'd like to talk to another... If I think ideally - best would be to have range of "virtual" sound destinations, that could be dinamically routed,mixed to physical devices. As far as my novice knowledge goes I was thinking of using Alsaplayers as music/wav players (they have software volume control) , Festival as speech synthesis, some softphone for IP telephony (that could output to ecasound or Jack) and every other valuable suggestion for software package I get. I don't know much of Jack, maybe its also part of solution.... Any other advice in apps to use, more info or any other opinion would be more than grateful. Also if anyone made some effort or thinking in this direction - it'll be of great help... Thanks in advance, Robert.

20 years, 11 months

[linux-audio-user] [ANN] galan-0.3.0-beta6 "vst(i) in the modular synth" released.

by torbenh＠gmx.de

hi... i just wanted to announce the release of galan-0.3.0_beta6. This release has vst(i) support through libfst. So if you ever wanted to wire up networks of vst plugins and instruments, you can do this now. fst is available here: http://linuxaudiosystems.com/fst/fst-1.5.tar.gz we have some issues with the embedding of windows into the app. it will work if you set managed = "N" in your wine config. and it will work with IcwWM and fluxbox. for other windowmanagers i cant tell. i hope to find this issue so that it works with every windowmanager soon. and for those who dont know. gAlan is a mixture of pd and reaktor. there is eventprocessing, and there are two windows: one for the schematics and one for the controls. in the controls window you can have several panels with custom background images. look here for an example of an instrument built with gAlan: http://galan.sourceforge.net/anti-aliased-knobs.png galan supports subpatches. and polyphony is already possible (but i will refine that a lot in the future) the documentation is not very good, and the example patches are a little old. but i hope the stuff which you can add from the Lib/ menu gets you started quite easyly. the download page is here: http://sourceforge.net/projects/galan -- torben Hohn http://galan.sourceforge.net -- The graphical Audio language

20 years, 11 months

Re: [linux-audio-user] Newbie checks in

by eviltwin69＠cableone.net

Welcome back! Check out my web site: http://myweb.cableone.net/eviltwin69/ALSA_JACK_ARDOUR.html Ardour is the best multitrack available but it takes some setup to get running. I've documented the scratch setup on my web site (since you already know your way around Linux this shouldn't be a problem). Don't forget to check out JAMIn for mastering (http://jamin.sourceforge.net/). Jan On Mon, 10 May 2004 00:16 , Jos Laake <jos(a)radiks.net> sent: >Hi all, > >I'm a lifelong musician turned geek who is now returning to the music >arena. I'm not new to technical issues. My day job until recently was >working on real-time Linux for Sony, so I know my way around a Linux >system fairly well. The music part I've got down. But music >technology, well, the last time I recorded anything was on a Tascam >4-track reel-to-reel and, whoa! Things have changed! And I'm gonna >need some help getting up to speed with all this cutting edge digital >audio stuff available today. > >As an avid open source supporter, I intend to use a Linux box as a >multitrack digital studio to help me bring 20 years of sidetracked >musical talent back to life. > >But so far I've had nothing but trouble so I went looking for help and >ended up here. So here's what I've got... > >On my main machine, I'm using RedHat 9 (kernel version = 2.4.20-6) on a >little cube Pentium4 machine (Ice Cube). The audio module that RedHat >came up with at configuration is: 'i810-audio' > >I'm also working with an old Gateway dual Pentium II runing RedHat 9 >with SMP (kernel version = 2.4.20-6SMP) and this one is using a Creative >Labs SoundBlaster MP3+ USB Audio unit. It comes up with an audio module >called 'audio'. (I'd like to set this up for my son who is a budding >guitarist). > >I was thinking about using the latest ALSA drivers (1.0.4) and Audacity, >but, first thing first. I'm having trouble getting the ALSA drivers >working. > >First question: Is this the best way to go? I mean, I want to do pro >or near-pro quality audio, but I don't want to spend boatloads on sound >cards without knowing there's good open source software to use. > >Thanks in advance for any and all help. >~Jos~ > > >Jos Laake

20 years, 11 months

[linux-audio-user] rather OT: transporting monitors?

by miriam clinton (iriXx)

hi all, rather OT, but i thought the best place to ask. heading out on a plane flight back to the UK, and need a means of transporting a computer monitor, preferably without paying for shipping as we have plenty of baggage weight available. we're planning to pack it inside its cardboard box with loads of bubble wrapping and lots of 'Fragile: handle as eggs' stickers on the side. does anyone have any experience of doing this, and have any sugestions on the best way to go about it? thanx muchly, mC~ -- "Do not engage me in irrelevant conversation" -- Seven of Nine, Star Trek: Voyager www.iriXx.org www.copyleftmedia.org.uk

20 years, 11 months

[linux-audio-user] VSTserver on MDK 10.0

by Russell Hanaghan

Has anyone got Thacs vstserver and libvst working on mandrake? I have tried and tried to no avail. Wine is running and seems to fire up the standard stuff like filemanager, windblows games, etc. I suspect it's to do with libvst but don't know. I'd really like to get this working as I have many vst plugins. thanks R~

20 years, 11 months

[linux-audio-user] xruns, ksoftirqd, alsa, jack

by Wade Winright

Hello all, I have the following set up: 1.8Ghz CPU 512 RAM VXPocket 440 (Digigram) kernel with low latency patch applied Planet CCRMA software installed When I fire up jack, I get xruns. At the same time, the ksoftirqd grabs about 50% of the CPU. Is this normal? I've tried tuning the jackd settings, and the only thing that seems to work is -C (capture only) but that seems fairly unproductive in a real multitrack recording situation. Any suggestions? Thanks! Wade

20 years, 11 months

[linux-audio-user] Is there a shortcut to merely test a midi device?

by Lee Dunbar

Howdy all.... I have been trying to learn a few things at once, possibly too many, and I'd like to cut some unknowns out of the big picture. I'm hoping that someone can help me with a down and dirty test of my midi hardware. Details: I am trying to learn about setting up and using midi in SuSe 9.0, and also am kinda new to Linux. Also, the keyboard might be defective... the 3 octave keyboard is 'new' in regards that I just bought it last year (was still shrink wrapped), but it is leftover stock - the manufacturer is out of business. To give a clue about the age, the keyboard came with Windows 3.1 software (no mention of 95). I only had Windows ME on a celeron system; when I installed the included software, it could not find the keyboard, but I suspected the age of the software and the differences in OS revisions were more the problem. And I assume that the celeron system was properly configured.... but nothing ever noticed a keyboard. I then took the keyboard to my Linux box... it still seems to be uncommunicative, but I'm new to Linux. There are just too many variables in the pot right now: a] Does the keyboard even work? It powers up and appears to change functions per written instructions. But no communications. b] Does my Linux box (SuSe 9.0, AMD Athlon, DFI AK75EC mobo) have a hardware or BIOS defect? BIOS says midi/game is set to midi (only other option for that port is game).... the cable is definitely connected to the correct port. c] Does my Linux box have all the proper modules? I see MPU401, virmidi, and all the soundcard playback stuff works fine. (Via 686 based chipset, AC'97 compatible). I can issue aconnect -lio and see a difference when the module is inserted, but do I have all the proper steps completed, etc etc etc. Ignore answering all the above, please; I'd rather try to send strings to the midi port and see if the keyboard is receptive, see how it responds, etc, so I can have some of the variables removed from the wide matrix that I presently face. Any suggestions on brute force communications w/midi devices? Can I cat some string int /dev/midiwhatever? I once used 'cat ATO > /dev/ttys00' for testing a modem, that was slick, but what commands are sent in MIDI? That kind of test would be, IMO, very useful. TIA! -- Matthew 28:19,20 _____________________________________________________________ Are you a Techie? Get Your Free Tech Email Address Now! Visit http://www.TechEmail.com

20 years, 11 months

[linux-audio-user] cross post spontaneous reboots in gentoo?

by Aaron Trumm

Hello - wondering what might cause a spontaneous reboot - running 2.4.25-gentoo-r2, using ALSA 1.03 with jack audio connection kit and Ardour (the latest ebuilds) and get this spontaneous reboot, usually when switching windows in ardour - not always that though - get it sometimes using hdspmixer too - haven't tried much else to see if it's connected to alsa or jack or just X or WHAT - using Xfree86 and fluxbox - although with KDE it does it too - KDM is the desktop manager (is that what's that's called???) hmmm... thanks!

20 years, 11 months

[linux-audio-user] Fwd: open hardware, Linux

by Luke Yelavich

Forwarding this to mailing lists where others may be interested. >Envelope-to: luke(a)audioslack.com >From: Vedran Vucic <vvucic(a)eunet.yu> >To: audioslack-users(a)audioslack.com >Date: Sat, 8 May 2004 13:44:53 +0000 > >Dear colleagues, > >A good friend of mine started project creating open audio card and possibly >he is interested to find people who can maybe contribute to idea of opencores >and open hardware having in mind that his project is related with audio >recording and editing. > >www.opencores.org/projects.cgi/web/fac2222m/overview > >I think that such an effort may be very important contribution to efforts all >we are committed. > >Best wishes, > >Vedran Vucic -- Luke Yelavich http://www.audioslack.com luke(a)audioslack.com

20 years, 11 months

[linux-audio-user] how to cut a midi file?

by Helge Hielscher

Hello, is there any tool, that could help me to cut the silence from the beginning of a midi file? (without taking a three month course of how to use the editor) TIA, Helge

20 years, 11 months

← Newer
1
...
8
9
10
11
12
13
14
...
17
Older →

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

Linux-audio-user May 2004