Linux-audio-user April 2007

linux-audio-user@lists.linuxaudio.org

171 participants
143 discussions

by Karsten Wiese

hi, I've uploaded 3 patches to https://sourceforge.net/tracker/?group_id=69130&atid=523505 1) "Bugfix: Keep phi < wave_period": results in less crackles here. 2) "New SynthData::exp_table_ln2()": slightly (~6%) smaller cpu hunger. 3) "s/log(2.0)/M_LN2/": superseeded by 2). Comments welcome, Karsten

18 years, 10 months

[linux-audio-user] Patch-2.6.20-rt8 and Nvidia Drivers

by David Baron

At least the 9631 version of the Nvidia video driver did not compile after the patch was applied and the kernel successfully build and booted. Same would definitely hold for older Nvidia versions and possibly newer ones as well. Problem: A bunch of obseleted #define SA_..... entries in the linux source/include/linux/interrupt.h They say do not use in newer code but Nvidia does need them. Solution: Copy these from an older or unpatched version of this file and then paste into the new one. One need not rebuild the kernel since these are no longer used there. After do this, Nvidia will build and run fine (so far).

18 years, 10 months

Re: [LAU] Been busy

by julien bodd

yes, it is my email address. Thank you very much ! >Hmmm, sounds interesting. >I'll sort out the midi file and send it off to you, assuming this is your real email addy. > Hi, > > 'Fox in the tall trees' is very good (the melody) ! > But I see it differently..I would put as a first instrument a guitar > 'à la' Pink Floyd, add drums, and vocals 'à la' Thom Yorke > (Radiohead). It would then be waaaouw ! > If you give me the midi file one day I could work on that.. > > C ya !

18 years, 10 months

[LAU] Been busy

by julien bodd

Hi, 'Fox in the tall trees' is very good (the melody) ! But I see it differently..I would put as a first instrument a guitar 'à la' Pink Floyd, add drums, and vocals 'à la' Thom Yorke (Radiohead). It would then be waaaouw ! If you give me the midi file one day I could work on that.. C ya !

18 years, 10 months

[LAU] Been Busy

by Folderol

It seems I managed to get more new and revised tunes uploaded than I realised over the last couple of months. You might like to take a look. http://www.musically.me.uk/updates.html Now that I'm pretty comfortable with Zyn & Rosegarden as well as interaction with my hardware synths. I'm starting to get to know qsynth. This is all a moving target of course :) -- Will J G

18 years, 10 months

[LAU] What was the audio generator used by Hawkwind?

by Damon Chaplin

Hi, Does anyone know what the "audio generator" was that Hawkwind used to use on albums like Space Ritual (one of the best albums ever!). It produced sweeping, oscillating tones. I'd be interested to know exactly what it was generating. Is there anything like it on Linux? Damon

18 years, 10 months

[LAU] Problem with TAP plugins and Ardour, also what stereo EQ plugin?

by Hector Centeno

Hi, I've been trying to use the TAP plugins in Ardour2 beta 12 and sometimes de tracks where they are inserted become silent (this is using the EQ plugin). The CPU usage stays low so I don't know if this is related to the denormal problem I've been reading in the list archives. Also I was wondering what stereo LADSPA EQ plugins do people use with Ardour. I find it difficult to EQ a stereo track by routing it to two mono buses each one with a mono EQ plugin and habing to adjust one at a time. Am I missing something here? Thank you! Hector -- =============================== http://www.hcenteno.net

18 years, 10 months

[LAU] Pops and clicks but no xruns

by Spencer Russell

Recently I posted regarding nice low latencies on my brand-spankin-new Thinkpad R60. I was a bit premature though, because when I actually run any sound through jack I'm still getting lots of pops and clicks in my audio. I am not, however, getting any Xruns. I'm not sure what to look for as a culprit. I already enabled "force 16 bit", which got rid of some nasty distortion, maybe something wacky with my IRQs? One of my worries is that the HDA card is on the same interrupt as my firewire and one of my USB drives. When I remove the modules though, leaving only HDA on its own interrupt, i still get the pops. When I use audio without jack I get no clicks or pops, and changing jackd to capture only doesn't seem to help. I also boosted the priority of that interrupt thread with chrt --fifo --pid 99 `pidof 'IRQ 4'` without any change. What could cause clicks without xruns? I'm baffled. -spencer

18 years, 10 months

[LAU] Laptop Battle Registration and Promotion

by Jeff Sandys

LaptopBattle dot org is looking for Laptop Battle Musicians for future battles and to promote the musician's music. If you are interested register at the link below: --------------------------------------------- Attention Laptop Battlers! LAPTOPBATTLE.ORG is planning some major moves for 2007 & beyond, and we are trying to organize contestants and help promote them at the same time. If you are interested in battling and want to register, please create a profile on LAPTOPBATTLE.ORG main site. quick link: http://www.laptopbattle.org/LB-APPLICATIONS/ Your profile will show up on the contestants page when you have assigned a photo to your profile. Thanks!!! All the best, Jizo-One http://www.laptopbattle.org/ -- View this message in context: http://www.nabble.com/Laptop-Battle-Registration-and-Promotion-tf3507690.ht… Sent from the linux-audio-user mailing list archive at Nabble.com.

18 years, 10 months

[LAU] Re: Pops and clicks but no xruns - SOLVED

by Spencer Russell

Ah hah! Turns out my card only likes 3 periods, not 2. Thanks LAU archives! -spencer On 4/5/07, Spencer Russell <spencer.f.russell(a)gmail.com> wrote: > Recently I posted regarding nice low latencies on my brand-spankin-new > Thinkpad R60. I was a bit premature though, because when I actually > run any sound through jack I'm still getting lots of pops and clicks > in my audio. I am not, however, getting any Xruns. I'm not sure what > to look for as a culprit. > > I already enabled "force 16 bit", which got rid of some nasty > distortion, maybe something wacky with my IRQs? One of my worries is > that the HDA card is on the same interrupt as my firewire and one of > my USB drives. When I remove the modules though, leaving only HDA on > its own interrupt, i still get the pops. > > When I use audio without jack I get no clicks or pops, and changing > jackd to capture only doesn't seem to help. I also boosted the > priority of that interrupt thread with chrt --fifo --pid 99 `pidof > 'IRQ 4'` without any change. > > What could cause clicks without xruns? I'm baffled. > > -spencer >

18 years, 10 months

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Linux-audio-user April 2007