Linux-audio-user September 2005

linux-audio-user@lists.linuxaudio.org

157 participants
172 discussions

[linux-audio-user] hello gentoo? speed up please...

by Aaron Trumm

hello all - got a question - I've only recently been stopping and taking a look at my studio computer's performance and in the almost year since I change from Red Hat 9 to gentoo, it's been more solid on some things, but I notice a huge latency difference - ie: I have to run Jack at -p 8192 to get anything done in Ardour Anybody have any tips on what to look at to tweak it? Seems like it should do better than that... I didn't see it as a problem until in the last few days I started playing with playing softsynths live directly into Ardour - you've gotta be running at -p 1024 or there's a latency that screws up your playing - at 8192 it's a downright 8th note delay... Here's some vitals that I can think of: OS: gentoo 2.6.6-rc1 kernel (alsa built in) jack: 0.99.0 ardour: beta28 jack command line: jackd -R -d alsa -d hw:0 -r 48000 -p 8192 <------- (or whatever) harddrive: multicount on io support: 32 bit unmaskirq on use dma on keepsettings off readonly off readahead on chip: 2ghz amd (I THINK - not at computer now) ram: 512MB thanks for any ideas! :) --------------------- Aaron Trumm www.nquit.com -----------------------

18 years

[linux-audio-user] [offlist] Re: Mellotron sounds

by Juhana Sadeharju

>From: Neil Durant <lists(a)sphere3.co.uk> > >I'd be happy to sample the full lengths of all 35 notes for all six sounds, >storing them as wavs. I don't have a lot of spare time these days, so I'll >let someone else have the pleasure of cropping/editing! Please do so. Make the files available from your site or upload to ftp://ftp.funet.fi/incoming/audio/ Note: If we end up to conclusion that the samples cannot be put freely available, then I could make the samples privately available for the following kind of project. Research experts should analyse the sounds and come up with synthesis method which generates as similar sounds as possible. I'm aware of such research teams and I could ask them to analyse the samples. I also have a plenty of research papers on such analysis/synthesis methods. I could place the papers privately available for anyone who wish to write the analysis/synthesis software. Regards, Juhana -- http://music.columbia.edu/mailman/listinfo/linux-graphics-dev for developers of open source graphics software

18 years, 8 months

[linux-audio-user] Announce for new Distro .....PClinuxOS" and Thac's packages

by Russell Hanaghan

Hi Folks, So, I have spouted off about a distro before (I know some of you checked it out) and it was not as good as I hoped it would be! :( Trust me...THIS is not the case this time!!! Announcing PClinuxOS (PCLOS for short) http://www.pclinuxonline.com/pclos/ This is based on Mandrake but minus the bloat! One ISO built as a LiveCD! You can boot it and not install...no commitment unless you want to. The install is simple as can be and fast. KDE 3.4, Fluxbox, Gnome, etc. The distro was started by Texstar who used to build packages for Mandrake a few years ago. So, whats that got to do with Music?? Just this; Thac has decided to start packaging for PCLOS just as he has with Mandrake. For those not familiar with his work... http://rpm.nyvalls.se/sound10.1.html I have relied on Thac's RPMS for audio since I started Linux audio work. He keeps his packages updated and has about everything worth having in his repositories. They have been invaluable to me. As recently as yesterday, Thac has started his own 3rd party Apt repository for PCLOS and as I write I am downloading the first of his packages and new mm kernel, etc. We are chatting on the Pclinuxos IRC chat room and ironing out a few minor bugs. It will be a few days before he has all of his packages done. Texstar suggested that we might make a liveCD with the key audio apps and a R/T kernel for easy usage and evaluation. Obviously some time is needed to work the bugs out but this is very likely in the not too distant future! I should think those of you working with MDK right now would see this as an easy step....others...well, the proof will be in the pudding. More soon.... R~

19 years

[linux-audio-user] A New Tune

by Conor O'Tuama

Hi :-) Seeing as everybody else appears to be getting the tunes out there, I thought I might as well bite the bullet......hope somebody likes it ;-) It is an initial mix, rough about the edges. http://homepage.eircom.net/~conorotuama/time_til_i_die.ogg Copyright 2005 Conor O'Tuama Cheers ! (recorded in Slackware Linux, using Ardour and various other bits 'n' bobs)

19 years

[linux-audio-user] Going to buy an M-Audio Delta44... How good is it with JACK?

by Salvatore Di Pietro

Greets to all, As in subject, I'm gonna buy a Delta44, and I would like to have some impressions about its reliability with JACK, as I am still bugged with the occasional crackling problem (with no xruns) with my SB Live and other consumer cards I own, but I think it's a poor hardware design issue or an ALSA driver bug, as suggested by Paul Davis et a. on this list (but, hey Lee revell, have you got that problem with SBLive?) So, any Delta44, or M-Audio and JACK enthusiast here? Thanks in advance! ciao -- salvuz POST FATA RESVRGO Linux registered user #291700 | machine #174619 get counted on ---> http://counter.li.org/ <---

19 years

[linux-audio-user] RME Hammerfall 9636 - troubleshooting

by Michael T D Nelson

Hi all, I have a fully up-to-date PlanetCCRMA FC3 machine - 700Mhz P3 with about 640MB of RAM. I bought a cheap second-hand RME Hammerfall 9636 recently, in the knowledge that it was untested. I've plugged the card in, and run alsaconf. I can start jack with qjackctl, and connect my audio applications to all of the cards inputs and outputs, and so on. I have a Behringer ADA8000 connected to the first lightpipe output. However, I'm having difficulties getting a clean output - whichever software I use... For example, when I play audio, and route it to output 1, all I can hear is some approximation of white noise, until the volume gets to somewhere near maximum - when I can hear a very distorted version of the original sound. Does this help at all? I'm *hoping* that I've just done something wrong, and that the card isn't fried. ALSA detected the card fine though, for what it's worth. Regards, Michael

19 years

[linux-audio-user] kernel 2.6.13 and layla

by Marcos Guglielmetti

Hello, Does anybody knows why does the 2 laylas soundcards dont operate here? We have a complex problem. Using kernel 2.6.13 form DeMuDi, the PC is really an odd one (SMP, etc. see pcinfo.txt)... We type: modprobe snd-layla24 modprobe snd-echo3g cat /proc/asound/cards --- no soundcards --- snd-page-alloc pages : 0 bytes (0 pages per 4kB) hwsetup -v ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ class: OTHER bus: PCI device: (null) driver: snd-layla24 desc: Unknown vendor|Generic snd-layla24 device --- class: OTHER bus: PCI device: (null) driver: snd-echo3g desc: Unknown vendor|Generic snd-echo3g device ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ lsmod | grep snd snd_echo3g 32804 0 snd_layla24 31780 0 snd_rawmidi 24608 2 snd_echo3g,snd_layla24 snd_seq_device 8460 1 snd_rawmidi snd_pcm_oss 50976 0 snd_mixer_oss 17280 1 snd_pcm_oss snd_pcm 86660 3 snd_echo3g,snd_layla24,snd_pcm_oss snd_timer 24068 1 snd_pcm snd 52068 8 snd_echo3g,snd_layla24,snd_rawmidi,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer soundcore 9952 1 snd snd_page_alloc 9476 3 snd_echo3g,snd_layla24,snd_pcm firmware_class 10240 3 snd_echo3g,snd_layla24,pcmcia _________________________________________ OSS soundcore 9952 1 snd _________________________________________ uname -a Linux box 2.6.13-1-multimedia-386 #1 Sun Sep 11 17:26:59 CEST 2005 i686 GNU/Linux __________________________________________ Does anybody knows why does the 2 laylas soundcards dont operate here? -- Marcos Guglielmetti fecha: lun sep 26 03:00:02 CEST 2005

19 years, 1 month

[linux-audio-user] M-Audio Delta cards help?

by October

Finally decided to swap out my SB Live! Platinum for an M-Audio Delta 44. The hardware installation is no problem as I built this machine myself in the first place... It's more the software. I'm running Demudi 1.2.1 and am wondering what sort of hoops I might have to jump through to get the proper drivers up and running. Will it be as simple as powering down, swapping cards, powering back up and seeing it autodetected? Any tricks, tips, things to look out for? Also I remember reading about some sort of mixer specifically for these cards but can't seem to find it. Anyone know what I'm talking about? Thanks in advance! Jon Hoskins ----------------------------------------------------------------------- In a world without walls who needs gates or windows? --unknown ______________________________________________________ Yahoo! for Good Donate to the Hurricane Katrina relief effort. http://store.yahoo.com/redcross-donate3/

19 years, 1 month

[linux-audio-user] jackd: too many servers already active

by Ken Schutte

I used to have jack working fine on my system, but lately strange things have been happening. Right now when I try: jackd -v -d alsa I get, too many servers already active I've also tried different variations on this (-R, etc), and using qjackctl. I can't find any other jack processes ("ps aux | grep jack" shows nothing). I get the same thing right after rebooting. Alsa seems to be working (aplay, etc). Can anyone give some advice? thanks.

19 years, 1 month

[linux-audio-user] chuck-1.2.0.1 (dracula) released

by Ge Wang

Dear all, chuck-1.2.0.1 (dracula), the second major release of the strongly-timed, concurrent, and on-the-fly audio programming language, is available. it contains support for arrays (finally), classes, events, as well as many other additions, bugs fixes, and new bugs! For linux: real-time audio now defaults to using a callback model (blocking functionality still available via command line flag), which greatly increases stability under Jack (and for much lower buffer sizes across the board). Many thanks to Dave Robillard, Florian Schmidt, Leonard "paniq" Ritter and others for their suggestions, ideas, and testing. Home lair: http://chuck.cs.princeton.edu/ Improved documentation and language specification (finally): http://chuck.cs.princeton.edu/doc/ http://chuck.cs.princeton.edu/doc/language/ Happy ChucKing! (and let us know if you run into any issues) Best, chuck team (Perry, Ananya, Phil, Adam, Ajay, Ge ...) mailing lists and forums: http://chuck.cs.princeton.edu/community.html --- what's new: --- 1.2.0.1 - 2005.9.27 - (added) full callback capability for real-time audio - blocking functionality still available - select via flags: --blocking and --callback - improves latency and stability, especially on linux - use --callback (default) for low latency / small buffer size - use --blocking for higher throughput - (fixed) crash when doing on-the-fly 'replace' : chuck --replace 0 foo.ck - (fixed) OSC event function now correctly named ("event") - (fixed) removed debug output in OSC - (fixed) implicit cast is now correct when sporking (thanks to Manfred Brockhaus) - (fixed) examples code reformatted, cleaned, and commented - (fixed) nested class definitions can now have same name as outer class - (fixed) nested class bug in scan1 (thanks to Robin Davies) - (fixed) variable resolution in parent class now visible (thanks to Robin Davies) - (fixed) variable resolution ordering - local, class, parent, global (thanks to Robin Davies) - (fixed) emitter now asserts inheritance instead of equality (thanks to Robin Davies) - (fixed) string comparison ==, != - (added) string operations <, <=, >, >= --- 1.2.0.0 SYNTAX and OPERATORS: - (added) +=>, operator : 2 +=> i; (also) -=>, *=>, /=>, %=> - (added) @=> for explicit assignment this is the only way to make object reference assignments - (added) implicit int to float casting - (changed) cast now look like: 1.1 $ (int) => int i; - (added) function call by chucking : // call (1,4) => math.rand2f => result; // same as math.rand2f(1,4) => result; LANGUAGE: - (fixed) type system for existing types - (added) forward lookup of classes and functions (mutual recursion) - (added) stack overflow detection for massive recursion DOCUMENTATION: - (added) language specification: http://chuck.cs.princeton.edu/doc/language COMMAND-LINE: - (added) --probe prints all audio and MIDI devices - (added) --log or --verbose logs compiler and virtual machine - (added) --logN or --verboseN multi level logging 1 - least verbose 10 - most verbose OBJECTS: - (added) 'class' definitions : class X { int i; } - (added) 'extends' keyword : class Y extends Event { int i; } - (added) virtual/polymorphic inheritance - (added) added pre-constructors - code at class level gets run when object is instantiated - (added) function overloading : class X { fun void foo() { } fun void foo( int y ) { } } - (added) base classes (can be extended): Object, Event, UGen see below - (added) base classes (cannot be extended): array, string see below - (added) member data - (added) static data - (added) member functions - (added) static functions EVENTS: - (added) base Event class : Event e; can be used directly can be extended to custom events (see one_event_many_shreds.ck) - (added) waiting on event, chuck to now : e => now; // wait on e - (added) e.signal() wakes up 1 shred, if any - (added) e.broadcast() wakes up all shreds waiting on e - (added) class MidiEvent (see gomidi2.ck) alternative to polling. - (added) class OSCEvent ARRAYS: - (added) arrays : int a[10]; float b[20]; Event e[2]; - (added) multidimensional arrays : int a[2][2][2]; - (added) associative arrays : int a[10]; 0 => a["foo"]; all arrays are both int-indexed and associative - (added) array initialization : [ 1, 2, 3 ] @=> int a[]; - (added) .cap() for array capacity - (added) .find() test if item is associative array - (added) .erase() erase item in associative array UGENS: - (added) class UGen can be extended - (changed) all ugen parameters are now also functions: // set freq 440 => s.freq => val; // same as... s.freq( 440 ) => val; - (changed) left-most parameters must now be called as functions // no longer valid f.freq => float val; // valid f.freq() => float val; // still ok 440 => s.freq => float val; SHREDS: - (added) class Shred - (added) .yield() .id() STRINGS: - (added) class string AUDIO: - (added) stereo all stereo unit generators have .left, .right, .pan functions - (changed) stereo ugen: dac (2 in, 2 out) - (changed) stereo ugen: adc (0 in, 2 out) - (added) stereo ugen: pan2 take mono or stereo input and pans - (added) stereo ugen: mix2 mix stereo input into mono

19 years, 1 month

Jump to page:

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 September 2005