Linux-audio-user October 2004

linux-audio-user@lists.linuxaudio.org

153 participants
223 discussions

[linux-audio-user] realtime-lsm module and 2.6.9-rc3-mm3-VP-T3 x86_64: wont boot

by thewade

Hello all, I had my machine running with 2.6.9-rc3-mm3-VP-T3 and alsa at a 64 sample sized buffer, but pd was having some torubles when I ran both jackd and pd as root. I was told to use the realtime-lsm module, so I went the jack sourceforge page and followed the links, rebuilt and installed a nre kernel that should load the realtime-lsm module so that I could run pd with the setuid bit set, and jackstart to avoid a/d/a sync errors. Now on boot I get: kernel panic - not syncing: VFS: unable to mount root fs on unknown-block(0,0) Ive tried setting the root=/dev/hdaX to no avail. What is going wrong? Im now just trying to retrace my steps on how I got 2.6.9-rc3-mm3-VP-T3 set up on my x64 laptop, because I tried to rebuild the kernel from fresh sources and got the same error. There wsa the slight possibility of source contamination from the previous source tree, so Im trying again... Also, Ingo\'s VP people.redhat page is empty, where\'d it go? Thanks for the help! -thewade

19 years, 6 months

Re: [linux-audio-user] OT: ide drives

by David Baron

On Thursday 21 October 2004 18:00, linux-audio-user-request(a)music.columbia.edu wrote: > > /dev/hda � � system hd > > /dev/hdb � � DVD burner > > /dev/hdc � � data hd > > /dev/hdd � � DVD reader > > > > Does this look OK? (Does it matter where i plug the drives at all?) > > I think this setup looks good. Give it a try. Why does "everyone" set things up with HDs on one channel, CDs on the other? I was told that the slower CD device will slow down the HD. I had run Windoze with a setup like the above with no problems, however.

19 years, 6 months

[linux-audio-user] [ANNOUNCE] SRC support for XMMS OSS output plugin

by Jussi Laako

Hi, I have made a patch which adds support for samplerate conversion to XMMS's OSS output plugin. Samplerate conversion is done using Erik de Castro Lopo's libsamplerate aka Secret Rabbit Code. Why? Because there are soundcards which support only single samplerate in hardware (usually 48 kHz). To get best possible sound quality out of these, you'll need high quality samplerate conversion when playing 44.1 kHz files/streams. All comments on this are welcome. Patch is available from: http://www.sonarnerd.net/linux/xmms-rabbit.patch -- Jussi Laako <jussi.laako(a)pp.inet.fi>

19 years, 6 months

[linux-audio-user] Gentoo specific setup for a Midisport 2x2

by Mark Knecht

Hi, Is anyone out there running a 2.6.x kernel under Gentoo and using a Midisport 2x2? I'm trying to set up my 2x2 under Gentoo but cannot make either hotplug and/or Alsa happy. The Alsa sound card page seems to be down as they are redoing the web site technically and I cannot access any info. The 2x2 is seen by usbview as an unknown device. (763/1001 I believe) I've loaded fxload on the system. Anyway, looking for a few pointers. Thanks in advance, Mark

19 years, 7 months

[linux-audio-user] OT: ide drives

by Robert Epprecht

I have a Linux computer designated to do audio work. Currently i have *one* hd as /dev/hda and a DVD writer (DVD-RAM capable) as /dev/hdc. I want to add another hd to separate system and (audio) data. I also have a spare DVD drive which I want to plug into the system. I do not know much about ide related hw issues, but i can imagine that it could be better to have the two hd on *separate* ide channels, but i don't really know if it has any significance. Does it? Does it make a performance difference if a drive works as master or slave? The only thing i care about is audio performance of the system. I don't care about the optical drives performance as long as they are working... My first try would be something like: /dev/hda system hd /dev/hdb DVD burner /dev/hdc data hd /dev/hdd DVD reader Does this look OK? (Does it matter where i plug the drives at all?) Thanks for sharing your knowlege, Robert Epprecht

19 years, 7 months

Re: [linux-audio-user] GM sound font sets, was Now trying to configure

by Alejandro Lopez

Have you tried Air Font? I haven't been able to give any of the sets a try yet (due to lack of time, I just CAN'T WAIT now, honest) but it seems to be getting very good reviews at Hammersound. I have now downloaded both Air Font and Fluid r3 (as I read your post).. BTW, I'm not sure that the SB soundfont is FREE for anyone to use, I think it's likely that you can use it in whatever way you like (softsynth etc) provided that you HAVE a SB anyway? Cheers, Alex >and the pianos are good too. I agree that Creative's fonts aren't really >all that good (though I do like the pianos), but they're free (as in beer, >I think) and work well with TiMidity and fluidsynth. > >Btw, I use the Fluid_R3 soundfont with TiMidity for synth work. To my ears >it's about par with Hyper Canvas. _________________________________________________________________ Móviles, DVD, cámaras digitales, coleccionismo... Con unas ofertas que ni te imaginas. http://www.msn.es/Subastas/

19 years, 7 months

RE: [linux-audio-user] Do I have a synth? :-/

by Alejandro Lopez

Good point. The other thing you lose comes from your "but you can mix both together", which should be completed as "if you have an analog mixing console"! :-) If you have to add a console to the $24 of the SB, then it becomes a different thing! :-) Plus I'm trying to save physical space and build a small studio I can take from place to place (can't record drums in my flat for instance). Because of this, I think I'm more inclined to big CPU and digital mixing. The fact that you can do things such as route soft synth sounds to ladspa plugins or route different digital audio outputs to the same soundcard (thanks to Jack) is a kind of dream come true, I think we all tend to assume these possibilities as natural but they are a kind of miracle flexibility-wise. Cheers, Alex >Yeah, the only really good bet is to get an sblive card, I got an oem for >only $24 and the onboard synth works great with alsa. You get the benefit >of 0 latency for playing back sound fonts, but you also lose out, with >software synths like fluidsynth its possible to send the soundfonts >through ladspa plugins, while in hardware this isn't possible. But you can >mix both togther, so I usually use the hardware for my percussion sounds, >which screw up the music if they glitch out, and then I can use software >for stuff I want to put effects on. _________________________________________________________________ Acepta el reto MSN Premium: Correos más divertidos con fotos y textos increíbles en MSN Premium. Descárgalo y pruébalo 2 meses gratis. http://join.msn.com?XAPID=1697&DI=1055&HL=Footer_mailsenviados_correosmasdi…

19 years, 7 months

[linux-audio-user] ecasound loop

by Martin Rocamora

Hi! I need some help on looping a sound using ecasound. I use the GNU/Linux system as an effect processor (reverb and eq) for a live show. Some of the list members point my attention to ecasound to do that, and is working great. Now I need to play some sounds in loop while doing the effect processing. Particullary, it would be great to press a key to start playing a sound in loop, until another key is pressed and that starts playing a second sound in loop, and so on. So I tried a simple bash script to do that (using aplay), but it didn't work as I get a sound interrupt for each loop. Then I made a program in C (using ncurses and sndlib) to do the job, that's almost finished and seems to work ok. And now the questions: ¿Is there a "natural" way of doing sound loops (in the way I discribed) using ecasound? ¿How can I "connect" the C program to ecasound (without using jack) while using it as a real-time effect processor? Thanks a lot and sorry for the long description. Martín.

19 years, 7 months

[linux-audio-user] a live performance timer

by Dave Griffiths

Hi all, A timer in a window that counts up in seconds, clicking on it resets the time back to 0. for seeing how much time you've got left during a live gig... Requires python,tkinter cheers, dave --->8--- #! /usr/bin/env python from Tkinter import * from time import * class clock: def __init__(self,master): self.starttime=0 self.widget=Button(master,text="0:0",font=("Courier",50,"bold"),relief=FLAT,command=self.reset) self.widget.pack() def idle(self): thistime = int(time()-self.starttime) self.widget.config(text=str(thistime/60)+":"+str(thistime%60)) self.widget.after(1000, self.idle) def reset(self): if not self.starttime: self.widget.after_idle(self.idle) self.starttime=time() win = Tk() win.title("ticktock") slider = clock(win) win.mainloop()

19 years, 7 months

[linux-audio-user] Do I have a synth? :-/

by Brian Redfern

Yeah, the only really good bet is to get an sblive card, I got an oem for only $24 and the onboard synth works great with alsa. You get the benefit of 0 latency for playing back sound fonts, but you also lose out, with software synths like fluidsynth its possible to send the soundfonts through ladspa plugins, while in hardware this isn't possible. But you can mix both togther, so I usually use the hardware for my percussion sounds, which screw up the music if they glitch out, and then I can use software for stuff I want to put effects on.

19 years, 7 months

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Linux-audio-user October 2004