Linux-audio-user February 2009

linux-audio-user@lists.linuxaudio.org

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115 discussions

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RME RayDAT and linux?

by Giso Grimm

Hi, does anybody know whether the RME Raydat interface card is linux compatible? Does it use the hdsp driver? Giso

15 years, 6 months

[ot] Visit to London

by Julien Claassen

Hello Londoners! My girlfriend and me, we're coming up to London for a few days in early April. I've just been wondering if any of you might know a cheap place to stay. Can anyone recommend a youth- or free hostel? And perhaps someone is up for a get together in the evening. We'll be there from April 8 to 12. Kindest regards Julien -------- Music was my first love and it will be my last (John Miles) ======== FIND MY WEB-PROJECT AT: ======== http://ltsb.sourceforge.net the Linux TextBased Studio guide ======= AND MY PERSONAL PAGES AT: ======= http://www.juliencoder.de

15 years, 6 months

[Fwd: guitar tab feature request]

by Grammostola Rosea

15 years, 6 months

no midi with 2.6.26 or 2.6.27

by Tony Smolar

Greetings, Ever since I updated my system to Fedora 8, I haven't been able to use my external MIDI keyboard or the wavetable on my sblive card via aplaymidi. aplaymidi will usually play the first note of a song, and nothing more. Kmid does exactly the same thing. yet the 'aplay' command seems able to read and write to the MIDI port. I am running 2.6.26.8-57.fc8, and I've also tried 2.6.27.13 both have the same issue. The correct drivers do exist. I haven't noticed any errors in the logs. I'm hoping to finally get this resolved, and I can send whatever info is needed. Thanks, Anthony Smolar

15 years, 6 months

laptop/pc purchase checklist

by hollunder＠gmx.at

Hi all, I figured it could be handy to have some kind of checklist for buying laptops or pcs with audio production in mind. This should not only contain what to check for but also how to check for that stuff. I'll start with some stuff I can think of at the moment, please add to it, I believe it could make life easier for almost anyone in the market. * audio or the bus used for audio shouldn't share it's interrupt with anything else --> check /proc/interrupts * sonic emissions --> check specs/measurements; what are ok-ish levels? * firewire/IEEE 1394 Does it have 6 pins (==powered)? * harddrive speed --> check with hdparm(?), ok-ish values? * chipsets to avoid, and how to check them * ...

15 years, 6 months

hdspmixer: HwDep ioctl failed. Metering stopped

by Alex Norman

Hello, I'm trying to help my friend with his RME multiface and ubuntu linux. When we run hdspmixer we get this output: HDSPMixer 1.6 - Copyright (C) 2003 Thomas Charbonnel <thomas(a)undata.org> This program comes with ABSOLUTELY NO WARRANTY HDSPMixer is free software, see the file COPYING for details Looking for HDSP cards : Card 0 : RME Hammerfall DSP + Multiface at 0xfdde0000, irq 17 Multiface found ! 1 Hammerfall DSP card found. Initializing default presets HwDep ioctl failed. Metering stopped We can still use the mixer, route, etc. but metering doesn't work [we don't see any graphical representation of the audio]. hdspconf repeatedly gives us this output: Hwdep ioctl error on card hw:0. We can route audio with jack, output audio with jack, and also output audio with oss, but apps using alsa don't seem to be working.. when I run aplay on a file I get this output: jesse@ubuntu:/lib/firmware$ aplay /usr/share/sounds/alsa/Side_Right.wav Playing WAVE '/usr/share/sounds/alsa/Side_Right.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono ALSA lib pcm_pulse.c:625:(pulse_prepare) PulseAudio: Unable to create stream: Invalid argument aplay: set_params:1015: Unable to install hw params: ACCESS: RW_INTERLEAVED FORMAT: S16_LE SUBFORMAT: STD SAMPLE_BITS: 16 FRAME_BITS: 16 CHANNELS: 1 RATE: 48000 PERIOD_TIME: 125000 PERIOD_SIZE: 6000 PERIOD_BYTES: 12000 PERIODS: 4 BUFFER_TIME: 500000 BUFFER_SIZE: 24000 BUFFER_BYTES: 48000 TICK_TIME: [0 0] We've found some open threads in some bug trackers about this problem but no resolutions for this problem. Anyone have any ideas? Thanks, Alex

15 years, 6 months

Open Source Pitch Correction?

by Christopher Stamper

I know it's been asked before... Is there any real open-source pitch correction software for use with Jack? I use Ardour, and find that I could really benefit from something like this, for my vocals... I know some of you don't like pitch correction, but sometimes it's very helpful. Any suggestions? Maybe a way to use GSnap with Ardour? Thanks! -- Christopher Stamper Email: christopherstamper(a)gmail.com Web: http://tinyurl.com/2ooncg gTalk: http://tinyurl.com/6e359r Skype: cdstamper

15 years, 6 months

[nfo] Liwoli 2009 - Call for projects - Art University Linz

by Max Stein

---------- Forwarded message ---------- From: drucpa dracous <olvealien(a)yahoo.fr> Date: Wed, Feb 25, 2009 at 5:32 AM Subject: [nfo] Liwoli 2009 - Call for projects - Art University Linz To: acousmail(a)yahoogroupes.fr, scrime-info(a)labri.fr, cec-conference(a)concordia.ca purrr sayz the kitty wooof sayz the puppy sorry sayz the cross-poster -- Liwoli 2009 hacklab for art and open source 23 - 26 April 2009 Art University Linz http://linz.linuxwochen.at -- Liwoli 2009 is a three day long Hacklab and an open invitation to everyone who would like to participate in an active process of learning, producing and sharing ideas around the areas of Free/Libre Open Source Software (FLOSS) and DIY practices in digital art and culture. FLOSS developers, software artists such as the collective GOTO10, activists from HAIP (Hack Act Interact Progress) and many others form the basis for the event and will share their knowledge in the form of workshops, presentations, installations and performances. -- Open Call For the event we are calling for contributions (presentations, workshops and performances) around the FLOSS themes. This invitation is not only for those who are interested in “Do It Yourself” and how it interrelates with the current creative production practices, the invitation is also directed to those who are interested in the cultural importance of FLOSS. Submissions Please send submissions before the 25.03.2009 to call09-liwoli(at)servus(dot)at, with the following information : # Title # Format: lecture, workshop, installation, performance, presentation... # Description of content: # Links to relevant material (mandatory): # Required things: projector, sounds system, running water, compressed # air, cheeseburgers -- Organizers & contributers: servus.at, GOTO10, Radio Fro/Haip, Time's Up, lugl.at. Host and Support by: Kunstuniversität Linz Department for Time Based Media and the ZID der Kunstuniversität Linz Funds: servus.at funded by BM:UK, Stadt Linz (LinzImpuls 2008), Radio FRO/HAIP EU - CULTURE 2007 Not supported by: Linz 09 - European Capital of Culture Linuxwochen Austria -- :* -- GOTO10 ONE WAY NFO L!ST - HTTP://GOTO10.ORG IRC.GOTO10.ORG #GOTO10

15 years, 6 months

midi keyboards, jackd, low latency

by tizo

Hi there, Sorry about my previous mail. I was just starting to write a draft about the topics I want to ask, and I accidentally push the send button. Well, my goal is to play two midi keyboards, sending the events through jackd, to qsynth. My computer is a Laptop HP 550, with HDA Intel sound card, 3 GB of memory, and a Core 2 DUO CPU of 1.40 GHz. My OS is UbuntuStudio 8.04, with kernel 2.6.24-23-rt. First of all, I cannot run jackd without xruns, if I configure it with 32 frames per period, or less. I am running it as root, with realtime, and a priority of 70. As soon as I run it, it starts to count xruns, and I am only executing jackd. Looking at the different IRQ, I have saw that my sound card is sharing the IRQ 16 with an USB port, and the video driver. This is a cat of /proc/interrupts: CPU0 CPU1 0: 1026591 1099066 IO-APIC-edge timer 1: 2060 839 IO-APIC-edge i8042 8: 0 1 IO-APIC-edge rtc 9: 121 95 IO-APIC-fasteoi acpi 12: 118454 56308 IO-APIC-edge i8042 14: 6410 5638 IO-APIC-edge libata 15: 5167 6228 IO-APIC-edge libata 16: 624 482 IO-APIC-fasteoi uhci_hcd:usb1, HDA Intel, i915@pci:0000:00:02.0 17: 24009 14458 IO-APIC-fasteoi eth1 18: 0 0 IO-APIC-fasteoi ehci_hcd:usb2, uhci_hcd:usb5 20: 0 0 IO-APIC-fasteoi uhci_hcd:usb3, ehci_hcd:usb6 21: 0 0 IO-APIC-fasteoi uhci_hcd:usb4 508: 378 139 PCI-MSI-edge eth0 NMI: 0 0 Non-maskable interrupts LOC: 295845 239602 Local timer interrupts RES: 34174 96493 Rescheduling interrupts CAL: 10832 457 function call interrupts TLB: 873 742 TLB shootdowns TRM: 0 0 Thermal event interrupts THR: 0 0 Threshold APIC interrupts SPU: 0 0 Spurious interrupts ERR: 0 I have searched a lot on Internet, and even in the list, and I have not found a way to change the IRQ assignments. In fact, I have read some mails that said that I can't do that in a laptop (except in some Thinkpads, where IRQ can be changed in the BIOS), as in PCs this can be done changing the card to other slot. In other places, some kernel parameters were suggested to obtain other IRQ assignments, but the only parameter that change those in my computer, was "acpi=off", and it was not better. In this case, /proc/interrupts shows the following: CPU0 0: 602 XT-PIC-XT timer 1: 209 XT-PIC-XT i8042 2: 0 XT-PIC-XT cascade 8: 0 XT-PIC-XT rtc 10: 2912 XT-PIC-XT uhci_hcd:usb1, uhci_hcd:usb3, uhci_hcd:usb4, ehci_hcd:usb6, eth1, HDA Intel, i915@pci:0000:00:02.0 11: 0 XT-PIC-XT ehci_hcd:usb2, uhci_hcd:usb5 12: 5196 XT-PIC-XT i8042 14: 9987 XT-PIC-XT libata 15: 704 XT-PIC-XT libata 508: 31 PCI-MSI-edge eth0 NMI: 0 Non-maskable interrupts LOC: 87955 Local timer interrupts RES: 0 Rescheduling interrupts CAL: 0 function call interrupts TLB: 0 TLB shootdowns TRM: 0 Thermal event interrupts THR: 0 Threshold APIC interrupts SPU: 0 Spurious interrupts ERR: 0 So, my first question is: is there a way to change my IRQ assignment?, or that really cannot be done in my laptop? I would like to have it in a not shared one, not necessarily in IRQ 9, as with rt kernel a priority raise of an IRQ can be done with chrt. I have also read, that the HDA sound card is not good for audio processing. I am just starting to configure my whole "synthetizer box", so by this time, I am only making some tests with it. But, for the near future, which usb sound card would you recommend?. I also wonder that, if the IRQ of USB ports cannot be change too, I would have some of them sharing some IRQ. Would that affect the performance, having an usb sound card?. And what about the performance of the midi events for the keyboards connected to the laptop?. Thanks very much, tizo

15 years, 6 months

midi keyboards, jackd, low latency

by tizo

HDA INTEL, IRQ OTHER SOUND CARD IRQ FOR USB FOR MIDI KEYBOARD

15 years, 6 months

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Linux-audio-user February 2009