Linux-audio-user October 2004

linux-audio-user@lists.linuxaudio.org

153 participants
223 discussions

Re: [linux-audio-user] ncurses-based MIDI step sequencer a la muse (matrix mode)?

by Pedro Lopez-Cabanillas

On Wednesday 06 October, Dave Phillips wrote: > I'd like to see if DOSemu will work as well with the DOS > version of Cakewalk Cakewalk Professional for DOS 4.0E runs well under DOSemu 1.2 using the MPU-401 driver. MIDI output only, it doesn't record. http://perso.wanadoo.es/plcl/music/cakedosemu.png Regards, Pedro

20 years, 3 months

[linux-audio-user] changing instruments with rosegarden & timidity

by rico

Hello, Does anyone know a way to change instruments when using rosegarden with timidity? I know it works with qsynth but it results quite unusable because trhe sound gets scrambled as if qsynth couldn't respond fast enough to what rosegarden sends to him. Actually i'm really no expert in midi stuff but it is as if the midi events sent to qsynth where all mixed. Sound continues even when i close rosegarden! It works OK with timidity (don't know why) but then i cannot change the instruments (it sticks on piano if i create a new tune, or on the original instruments if i play a tune i made somewhere else). Thanks Eric

20 years, 3 months

[linux-audio-user] LADSPA Fuzz effects

by Francois Isabelle

Hi, I've been playing a little bit with JACK-RACK and my electric guitar. I have a wide variety of plugins but can't find a decent distortion. I tried all the types from the "lst" file include played a bit with the various settings, but they all sound very bad to me. ... I want to play good-old Led Zep stuff, any good combination to suggest .. Maybe these plugin are not good for realtime on a Athlon XP1800 ... ? Thanks Frank

20 years, 3 months

[linux-audio-user] es1370 and the el cheapo myth

by Timo Sivula

Hello, (sorry for the long post) I have been trying to set up the es1370 to work with my linux DAW for almost 1 year with limited success. Now there is some light at the end of the tunnel, so I thought I'd share the results as this issue has been discussed here lately and I also need some further advice. I have three Ensoniq es1370 cards in my pc. The ultimate target is to run four es1370 cards in parallel to enable an 8 channel i/o, the mythical "el cheapo multichannel DAW". I want to do this just for the sake of proving it is possible to do, and for the fun of it, never mind the availability of cheap multichannel cards. I will synch the cards by removing the crystals from three cards and connecting the clocks in chain as slaves to the first card. I currently need one PCI slot for my WLAN, therefore only 3 cards for now. However, I am not quite there yet, I only recently got the cards to work without producing "tons of xruns" on random. I am running a 2G Celeron, 377 MB RAM, ECS P4VXASD2+ mobo and the Planet CCRMA 2.4.26-ll kernel on Fedora Core 1. Here is what I did to make xruns go away: 1. Run all the optimisation hints at the planet CCRMA home page, especially the PCI latency timer optimisation did miracles to my soundcards. 2. Turn acpi off by adding acpi=off to the kernel command line in grub.conf 4. Set the BIOS not to expect acpi from the OS 5. Set BIOS to plug and play on PCI 6. Disable _everything_ from the BIOS you do not need. 7. Set Jack to use 48kHz sampling (my cards show 47040 Hz) 8. Set Jack to 64 frames per period and 7 periods per buffer Now all my cards have separate IRQs, and share IRQ only with the USB interface which in my case is a wireless mouse only. This was a big mess earlier, and I suspect the acpi and plug and play thing solved this issue. I still do not know how to enable IRQ7 for USB, which would still improve the situation. However, this is quite good as it is. # cat /proc/interrupts CPU0 0: 695888 XT-PIC timer 1: 1552 XT-PIC keyboard 2: 0 XT-PIC cascade 8: 1 XT-PIC rtc 9: 7894 XT-PIC ehci_hcd, ndiswrapper 10: 801578 XT-PIC usb-uhci, Ensoniq AudioPCI 11: 81 XT-PIC usb-uhci, Ensoniq AudioPCI 12: 81 XT-PIC usb-uhci, Ensoniq AudioPCI 14: 20701 XT-PIC ide0 15: 12135 XT-PIC ide1 NMI: 0 ERR: 0 # cat /proc/asound/cards 0 [AudioPCI ]: ENS1370 - Ensoniq AudioPCI Ensoniq AudioPCI ENS1370 at 0xec00, irq 10 1 [AudioPCI_1 ]: ENS1370 - Ensoniq AudioPCI Ensoniq AudioPCI ENS1370 at 0xe800, irq 11 2 [AudioPCI_2 ]: ENS1370 - Ensoniq AudioPCI Ensoniq AudioPCI ENS1370 at 0xe400, irq 12 With the settings above I get a latency of 9.33 ms and xruns only when I start new programs or shut them down. Earlier I had at least 2 xruns per minute. Now it looks a lot better, I have had the system on for several hours without a single xrun. The next step is to find out how to access more than one card at once from Jack for Audio. This I have not yet figured out, I only see one stereo alsa_pcm for the audio in qjacktl. I see three MIDI inputs but only one Audio. I can control each cards audio with alsamixer, so I know they are configured and work. Any clues how to go ahead here? br, Timo

20 years, 3 months

RE: [linux-audio-user] LADSPA Fuzz effects

by Reuben Martin

>I want to play good-old Led Zep stuff, any good combination to suggest .. > >Maybe these plugin are not good for realtime on a Athlon XP1800 ... ? I'm not sure if this will do exactly what you want but it would be a good place to start. http://zyzstar.kosoru.com/?creox -Reuben

20 years, 3 months

Re: l[linux-audio-user] es1370 and the el cheapo myth

by Timo Sivula

Hello > From: Mark Knecht <mknecht(a)controlnet.com> > > from Jack for Audio. This I have not yet figured out, I only see one > > stereo alsa_pcm for the audio in qjacktl. I see three MIDI inputs but > > only one Audio. I can control each cards audio with alsamixer, so I know > > they are configured and work. > Can you post your modules.conf file? I've had multiple cards recognized > before, but never the same type of card. Possibly there's jsut some > driver problem with enumerating and keeping track of multiple cards? Here goes, please make note that I have commented out the 4th card as I am not using it currently. I can use all of these as hw:0, hw:1 or hw:2, separately using jackstart. Qjackctl only allows me to use hw:0 or hw:1. I guesss the next step would be to create a .asoundrc file to access them all at once? # --- ALSA configuration alias char-major-116 snd alias char-major-14 soundcore # 1st card #-- OSS compatibility alias #alias sound-slot-0 snd-card-0 alias sound-slot-0 snd-ens1370 alias sound-service-0-0 snd-mixer-oss alias sound-service-0-1 snd-seq-oss alias sound-service-0-3 snd-pcm-oss alias sound-service-0-8 snd-seq-oss alias sound-service-0-12 snd-pcm-oss # 2nd card #-- OSS compatibility alias #alias sound-slot-1 snd-card-1 alias sound-slot-1 snd-ens1370 alias sound-service-1-0 snd-mixer-oss alias sound-service-1-3 snd-pcm-oss alias sound-service-1-12 snd-pcm-oss # 3rd card #-- OSS compatibility alias #alias sound-slot-2 snd-card-2 alias sound-slot-2 snd-ens1370 alias sound-service-2-0 snd-mixer-oss alias sound-service-2-3 snd-pcm-oss alias sound-service-2-12 snd-pcm-oss # 4th card #-- OSS compatibility alias ##alias sound-slot-3 snd-card-3 #alias sound-slot-3 snd-ens1370 #alias sound-service-3-0 snd-mixer-oss #alias sound-service-3-3 snd-pcm-oss #alias sound-service-3-12 snd-pcm-oss #-- Soundslot aliases alias snd-card-0 snd-ens1370 alias snd-card-1 snd-ens1370 alias snd-card-2 snd-ens1370 #alias snd-card-3 snd-ens1370 #-- Options options snd major=116 cards_limit=3 device_mode=0666 device_gid=0 device_uid=0 options snd-ens1370 index=0 options snd-ens1370 index=1 options snd-ens1370 index=2 #options snd-ens1370 index=3 # -- Keep modules from being autocleaned add options -k snd-card-0 add options -k snd-card-1 add options -k snd-card-2 #add options -k snd-card-3 #--- ALSA configuration END br, Timo

20 years, 3 months

Re: [linux-audio-user] ncurses-based MIDI step sequencer a la muse(matrix mode)?

by Eric Steinberg

What about PD? You have the notein and noteout objects, the capability of writing input to a list etc. If the Max/MSP objects mtr and seq can be replicated in Pure Data, then you've got just about the simplest MIDI sequencer there is. ----- Original Message ----- From: Eric Dantan Rzewnicki <rzewnickie(a)rfa.org> Date: Tue, 5 Oct 2004 17:59:46 -0400 To: A list for linux audio users <linux-audio-user(a)music.columbia.edu> Subject: Re: [linux-audio-user] ncurses-based MIDI step sequencer a la muse(matrix mode)? > On Tue, Oct 05, 2004 at 04:39:06PM -0400, Brett W. McCoy wrote: > > >>What something Timidity++ -- it uses a variety of interfaces, including > > >>ncurses, slang, GTK+, etc. > > >Does timidity do sequencing? I always thought of it as a softsynth ... > > Yeah, that's true... it's a softsynth with a built-in sequencer... never > > mind. > > So, is that builtin sequencer only capable of reading midi files? or > does it have an interface for editing them as well? > > -Eric Rz. -- ___________________________________________________________ Sign-up for Ads Free at Mail.com http://promo.mail.com/adsfreejump.htm

20 years, 3 months

Re: [linux-audio-user] suggestions for USB/serial/PCMCIA MIDI interfaces ?

by Pedro Lopez-Cabanillas

On Monday 04 October 2004, Emiliano Grilli wrote: > > > I have no direct experience of devices that require firmware, but I > > > recall a thread earlier this year on the agnula-user mailing list > > > discussing the > > > opportunity of distributing the firmwares, and if those firmwares were > > > "proprietary software" or not... > > > > Can you please give me a pointer to that thread? > > http://lists.agnula.org/pipermail/users/2004-June/002045.html > http://lists.agnula.org/pipermail/users/2004-July/002335.html Thanks. But they are talking about the alsa-firmware package. That collection includes firmware for several PCI and PCMCIA devices, and also for Tascam USB devices. This is not what we are talking here. There are not firmwares in alsa-firmware package for the Midisport devices, for instance. > > > As far as I can tell, agnula/demudi still doesn't distribute those > > > firmwares. They don't distribute the proprietary files from alsa-firmware, but they distribute the ezusbmidi package, a GPL firmware for Midisport1x1, 2x2, UNO and Steinberg USB-2-MIDI devices. See: http://apt.agnula.org/pool/main/e/ezusbmidi/ You can use the Midisport2x2 in agnula/demudi, with only GPL software and firmware. RMS shall bless your audio workstation with this setup. > > redistributed without the permission of their owners. It is proprietary > > software. There are no sources. I wash my hands. But if you don't mind to > > burn your soul in the hell, it is the only way to use some USB MIDI > > devices on Linux. > > That's why I would avoid them and buy the models that "just work" out of > the box, if I have the possibility to choose. You have two choices for Midisport1x1, 2x2, UNO and USB-2-MIDI: 1. The GPL firmware written by Lars, and known as "ezusbmidi". There are easy to install precompiled packages in agnula/demudi, CCRMA and Mandrake (and I hope that more distros will include it in the future). 2. The proprietary firmware, that you can extract from the windows drivers using the extractor in http://usb-midi-fw.sourceforge.net/ For other USB devices (4x4, 8x8...) you only have the second option. Regards, Pedro

20 years, 3 months

[linux-audio-user] some new code that may be of interest

by Dave Phillips

Greetings: Matt Flax sent these announcement to me recently, and since I've not had time to update the Linuxsoundapps site I'm passing them on the lists for now: MFFM Time Scale Modification for Audio <http://sourceforge.net/projects/mffmtimescale/> http://mffmtimescale.sourceforge.net/ This is an engine which stretches audio without changing its pitch. The C++ headers are really easy to use in 3rd party apps. MFFM Bit Stream <http://sourceforge.net/projects/mffmbitstream/> http://mffmbitstream.sourceforge.net/ This is a library which allows one to stream bits to/from files ... handy for those people who want to make an audio compression engine or player. MFFM Multimedia Time Code <http://sourceforge.net/projects/mffmtimecode/> http://mffmtimecode.sourceforge.net/ These C++ headers are great for managing time code ... it automaticly expresses time code in any base units ... which must be set up by the user ... can run any type of SMPTE, CDDA, etc. .. It is templated so you can handle any data type ... audio, video, audio/video.... It also includes a type II filter for audio processing ... this is very handy for filtering audio with FIR or IIR filters. Best regards, dp

20 years, 3 months

[linux-audio-user] [announce] radio programme (in German) on free software and contemporary music, LAD 2004, Wizards of Os

by Michael Iber

Hello, my radio programme about free software and contemporary composing, the LAD in Karlsruhe and the "Wizards od Os"-Conference in Berlin "- wo die Quellen offen liegen - Freie Software und aktuelle Musik" will be broadcasted on German State Radio SWR2 on Nov 1st at 11 pm. It includes interviews (from the LAD 2004) and music by Ivica Ico Bukvic Martin Rumori/Daniel Teige Thomas Grill Torsten Anders Ludger Brümmer Michel Koenders Orm Finnendahl I have to apologize to Fernando and Kjetil for not having included your interviews and music, but I had to choose from more than 3 hours of material, where I had - for a German programme - to concentrate on German native speakers. Thank you again very much for you contribution ... sorry. Best regards, Michael Michael Iber mail(a)michael-iber.de www.michael-iber.de

20 years, 3 months

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Linux-audio-user October 2004