Linux-audio-user February 2008

linux-audio-user@lists.linuxaudio.org

143 participants
139 discussions

by David Olofson

Figured a MIDI interface and some proper audio I/O would be handy, so I decided to try getting my old 20 bit Layla to work with my new box: Gentoo, 2.6.24-gentoo SMP PREEMPT x86_64 Kernel ALSA drivers - not the external ebuild. MB: ASUS Striker Extreme (nForce 680i) CPU: Intel Core 2 Duo Q6600 RAM: 4x 1 GB Crucial Ballistix VGA: 2x GeForce 8800GT 1GB (SLI) The snd_layla20 module failed with these messages: -------------------------------------------------------------------- [ 59.492710] ACPI: PCI Interrupt Link [APC1] enabled at IRQ 16 [ 59.492713] ACPI: PCI Interrupt 0000:02:06.0[A] -> Link [APC1] -> GSI 16 (level, low) -> IRQ 16 [ 59.813576] ALSA sound/pci/echoaudio/echoaudio_dsp.c:56: wait_handshake(): Timeout waiting for DSP [ 59.834543] ALSA sound/pci/echoaudio/echoaudio_dsp.c:56: wait_handshake(): Timeout waiting for DSP [ 59.855509] ALSA sound/pci/echoaudio/echoaudio_dsp.c:56: wait_handshake(): Timeout waiting for DSP [ 59.856108] ACPI: PCI interrupt for device 0000:02:06.0 disabled [ 59.856122] Echoaudio Layla20: probe of 0000:02:06.0 failed with error -5 -------------------------------------------------------------------- This happens pretty much every time I try to load the driver. Once in a while it'll actually initialize properly, and I had it working with echomixer monitoring all inputs for a good while - but sooner or later I get a DSP timeout again, and the driver is dead. Happened pretty much instantly when I started JACK. Now, I suspect that this has something to do with everyone wanting to use IRQ 16, and 8800 cards and Echo sound cards supposedly not being very keen on sharing IRQs at all. The Layla shares IRQ 16 with one of the SATA controllers and the two video cards. Unfortunately, the BIOS offers no IRQ routing configurability whatsoever, and moving cards around is not an option due to the SLI configuration. The SATA controller that uses IRQ 16 (SiI 3132) is not used, but it doesn't seem to be possible to disable only that one in the BIOS. So, is it at all possible for Linux to change the IRQ routing on an nForce 680i motherboard? Anything else that might help? And, does anyone here have a 20 bit Layla working on anything like my system? (Would be kind of nice to know if the drivers actually still work on *any* setup...) Thanks, //David Olofson - Programmer, Composer, Open Source Advocate .------- http://olofson.net - Games, SDL examples -------. | http://zeespace.net - 2.5D rendering engine | | http://audiality.org - Music/audio engine | | http://eel.olofson.net - Real time scripting | '-- http://www.reologica.se - Rheology instrumentation --'

17 years, 11 months

Re: [LAU] pops & clicks

by verymeta＠riseup.net

17 years, 11 months

[LAU] pops & clicks

by verymeta＠riseup.net

Pops and clicks I was wondering if anyone on this list has any ideas what might be causing the pops and clicks I'm getting. I'm running Ubuntu Gutsy with realtime kernel, and using an M-Audio Firewire Solo audio interface. I'm creating audio by running quite a few amSynths through Seq24. There are actually two kinds of noise that I'm getting: the first is a click that happens with certain bass tracks, where the bass cuts out quite abruptly. I get a click with each note - needless to say it sounds awful. I can get rid of this by making the notes die off a little more gradually but obviously I'd rather not have to do this. I also get random pops and clicks, and sometimes the audio just cuts out for a moment. This _terrible_ since the clicks are sometimes much louder than the song I'm trying to play. If I used a big amp/speakers, I would blow them :-( Jack doesn't report any problems in the messages window. I can turn my latency down to around 2msec or up to 67msec or higher, but this seems to have no effects on the pops and clicks. No xruns are reported. -Katie

17 years, 11 months

[LAU] RME Multiface II

by Brett McCoy

My Delta 1010 died this past weekend (nothing but a nasty hum coming out of all outputs, research showed that a fried input power supply capacitor may be the culprit). I am biting the bullet and upgrading to the RME Hammerfall Multiface. I seem to recall some issues not too far back with using this with Linux and an upgraded Multiface BIOS (which I assume is the PCI card). Is this still the case? Any other things to be aware of with this hardware? The user's manual actually mentions Linux (and also says not to listen to Microsoft), so I take this as a good sign. :-) And hdspmixer is the Linux equivalent of the TotalMix tool? -- Brett ------------------------------------------------------------ "In the rhythm of music a secret is hidden; If I were to divulge it, it would overturn the world." -- Jelaleddin Rumi

17 years, 11 months

[LAU] rme fireface 400 on debian?

by eva sjuve

hi all is anyone using this? I'm considering new hardware, but want to find out first if there are drivers available? anyone? cheers -e

17 years, 11 months

[LAU] Automatic sampling from MIDI sequencer

by Simon Williams

Hello. I have a number of keyboards and a dedicated MIDI sequencer box which I would like to sample sounds from and make into soundfonts. I want to sample ALL of the notes because I'm fed up with all these half-baked soundfonts which sound awful on notes which haven't been sampled. All the devices are MIDI capable so instead of me manually hitting all the keys, which will take ages, is there a program which will let me connect up the midi out on my laptop to midi in on the device, and the audio out on the device to the audio in on my laptop and then automatically get all the samples (or better yet make the whole soundfont) for me? Thanks in advance. Simon

17 years, 11 months

[LAU] Great article on the music business

by Ken Restivo

"For existing and emerging artists ? who read about the music business going down the drain ? this is actually a great time, full of options and possibilities. The future of music as a career is wide open." http://www.wired.com/entertainment/music/magazine/16-01/ff_byrne?currentPag… -ken

17 years, 11 months

[LAU] Multiple M-Audio Delta 1010s

by Terry Hull

I was wondering what the current status is of using multiple Delta 1010s with jackd. I have seen several references to an .asoundrc for this kind of a setup, but I have not seen anyone say how this is working for them. I currently have a single 1010 installed in a 3 GHz P4. While running at 5 msec latency it is running at about 6% CPU utilization with jack and Ardour2 running. How much does a second card add to the CPU load? Also, can xruns be avoided under these circumstances? I'm planning on using the machine for auxiliary processing during live performance. I know that RME cards would be the best option, but I really can't afford the card and the A/Ds. BTW: I had a significant amount of problems eliminating xruns on the machine. I started by moving from KDE to IceWM, but that did not improve things. After that I went from a normal kernel to the 2.6.22 real time kernel in the Gentoo pro audio overlay. That also did not seem to help very much. Even at 100 msec, I was still getting lots of xruns. I then turned off hyperthreading and added rtirq. These changes helped, but I could still generate xruns by just typing in a terminal window or moving the mouse. The thing that actually solved the problem was changing from the ATI Mach 64 on the motherboard to a NVIDIA 5200. That seemed to be the magic. I can now run Ardour with no xruns at 5 msec latency. -- Terry Hull - President Network Resource Group, Inc.

17 years, 11 months

[LAU] OT: online music sales sites

by Ken Restivo

There appears to be one online music sales site for every musician out there. Well, maybe not quite that extreme. But, as has always been the case, the money isn't in being a musician, it's in selling the tools to musicians (instruments, software, t-shirt printing, etc., and now online music sales services). I suppose it's always been this way, dating back to the explosion of people selling HTML editors to aspiring web designers (and network equipment to aspiring ISP's) in the 1990's, to the people selling shovels to the gold miners in California in 1849. I've looked into Magnatune and iThinkMusic, and I've got some stuff on MusicSupervisor. My drummer put one of our band's tracks on SnoCap (we sold exactly zero). Somewhere I have a VIRB.com account, which I wasn't able to use much because its posting system requires Flash (which doesn't work on my 64-bit Linux machine). Someone on another list pointed me to Nimbit.com, which looks pretty good so far. Is anyone having any success with any of these sites for making any money selling tracks? -ken

17 years, 11 months

Re: [LAU] ffado tools and presonus firebox

by Pieter Palmers

Hartmut Noack wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Pieter Palmers schrieb: >> Hartmut Noack wrote: > >> released will hopefully accelerate vendor support for us. Unfortunately >> for you Presonus is not on the 'supportive vendors' list yet. > > But afaik from the presonus-forum they do not seem too be hostile so > maybe they tend to change their policy - there are some Linux-users on > their forum that advocate for Linux support They are not hostile, but rather ignorant. They promised to help out, but every time I ask them about it they put me on hold. >> as I mentioned before, our current strategy is to focus on devices that we >> have access to, in order to get things moving. > > Would it be helpfull if I'd send you my box so you can test it and/or > give it some careful surgery to find out, how it works? I plan to buy > another interface by may and you could have the box in june for 4-6 > weeks then... It's better than nothing of course, but in this case it won't help a lot. Presonus implemented some non-standard way of setting the samplerate, and without their help it's cumbersome to figure out. So I'd rather have them helping out. In any case, the vendors that did provide the stuff we need have priority, and as long as their devices aren't well supported I don't think about less cooperative vendors' devices. Greets, Pieter

17 years, 11 months

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Linux-audio-user February 2008