Linux-audio-user July 2012

linux-audio-user@lists.linuxaudio.org

99 participants
124 discussions

Someone using Alesis io2 Express - it works?

by Aurelien

Hey, I have to buyt several USB soundcards for a school I work in. The point is I almost never used any USB device, except POD XT Pro (which I won't recommend), and Fast Track Ultra, which is not built anymore, and which have a big hardware problem when coming to use Phantom Power. I'm looking for quite small soundcards, and I was thinking about the Alesis io2 Express. I read some things about it, and it seems to work out of the box, but as the Fast Track Pro also is supposed to work out of the box, and finally isn't, and so on, I'd prefer to be sure. So, does someone use this soundcard? Does it work well? Thanks a lot. Aurélien -- Aurélien

13 years, 1 month

Linux Educational facilities

by Patrick Shirkey

Hi, If you utilise Linux Audio/Multimedia tools in your department at an educational institution can you please send me the following details: Institution Name Department Department website Linux Facilities/Programs Number of students in program I'll add a section to the LAU Guide for promotional purposes. -- Patrick Shirkey Boost Hardware Ltd

13 years, 1 month

[ANN] setBfree - DSP tonewheel organ

by Robin Gareus

We are happy to share the following announcement with you, setBfree v0.5.0 was just released under GPLv2. setBfree is a MIDI-controlled, software synthesizer designed to imitate the sound and properties of the electromechanical organs and sound modification devices that brought world-wide fame to the names and products of Laurens Hammond and Don Leslie. Homepage: http://setBfree.org Source & Issue-tracker : https://github.com/pantherb/setBfree Will Panther succeeded where others have failed and made it possible to adopt Fredrik Kilander's Beatrix in terms of the GPL. We have spent the last weeks to update the code-base to meet requirements and are happy to announce a first beta version. The organ and effects as are available as LV2 plugins as well as a standalone JACK application. We've reworked the engine to allow arbitrary sample-rates, standardized interfaces, fixed various bugs, added a build-system, man-pages, a simple GUI for testing, etc. The sound is still pretty much the same as the original awesome Beatrix. Next steps include adding end-user documentation, tweaking and honing the synth-engine and fixing the bugs that you discover :) This release features contributions from Fredrik Kilander, Ken Restivo, Will Panther and Robin Gareus. For discussion please use the linux-audio-user list, bug reports should to the issue-tracker at github. Feedback of any kind is welcome. have fun, robin & Will

13 years, 1 month

JACK, qtractor and TAL Noisemaker on Pandaboard success story

by Dan MacDonald

One of the most compelling and attractive aspects of GNU/Linux and Free software for me has always been portability and so to that I end I have been striving for the last 16 years to make sure that I can do everything I need to do with a computer with open, free software. My other main hobby is music and so naturally these have converged with my focus being put on testing free audio software for Linux. My first foray into running Linux on a non-x86 machine was back in '99 when I bought the original iMac mainly so I could install and play with Linux on something that wasn't a PC. My first exposure to ARM Linux came in 2004/5 when I got hold of a Sharp Zaurus SL-C3000 which was a mighty impressive device at the time as it was the first Linux PDA to have a HD, USB host etc. The C3000 only has 64MB RAM but, as anyone who has run Linux on the original XBOX will tell you, you'd be surprised at how much you can do under Linux with only 64MB RAM. I managed to get JACK, specimen, seq24 and a few of the Linux trackers running on the Zaurus. Now its 2012 and I'm the proud owner of a Pandaboard - a mini ARM dev board with a dual core ARM Cortex, 1GB RAM, SSD and HDMI output etc. Apart from it 'not being a PC' - what I really like about this device is its low power consumption and total lack of fans or other cooling methods hence its totally silent. I've got Ubuntu 12.04 running Fluxbox on it and yesterday I achieved one of my main Pandaboard goals as I'm very happy to report it is possible to run at least one instance of the DISTRHO TAL Noisemaker LV2 plugin under qtractor (latest svn) on the Pandaboard with no xruns! As soon as you add a second Noisemaker track the xruns start to appear but you can of course mix NM down to audio tracks to get more instances that way. It should be noted that I have had to use an external USB soundcard to get JACK running on the Pandboard as the current ALSA driver for the Panda's onboard audio isn't working with JACK yet - in fact the onboard audio isn't working at all with the latest TI kernel and I also had to set the CPU governor to performance to get xrun free performance for Noisemaker. It goes without saying that the Pandaboard is not cut out for forming the basis of a pro-audio DAW and will not be replacing your i7 rig any time soon but its literally sooo much cooler!

13 years, 1 month

the mixes of Get On Board The Blues

by Dave Phillips

Greetings, With the versions from Thorsten and Julien the total is now ten. I think more are on the way, and the session and stem files are still available on request, if anyone else wants to join in. You can hear all the mixes, including the original, in this thread at KVR Audio : http://www.kvraudio.com/forum/viewtopic.php?t=351849&start=0&postdays=0&pos… (Sorry about any line breaks.) I'll continue to update that thread as I receive new mixes. Monstrous thanks to everyone who has participated so far, including commentators. I hope you're all having as much fun as I've been having. :) Best, dp

13 years, 1 month

Re: [LAU] get on board the blues - D&B variant

by Robin Gareus

On 07/20/2012 10:45 PM, Len Ovens wrote: > > On Fri, July 20, 2012 12:58 pm, Robin Gareus wrote: > >>> I have no real suggestions for the >>> bass, but with only bass and vocals, it could use some more high end. >>> I'd prefer to hear it with the funky guitar playing. :-) >> >> I'm not happy with the playing and mix, yet, but there you go: >> http://robin.linuxaudio.org/rg1-get_on_board_the_blues.ogg > > That sounds really good. I think I am used to a little roughness and in > general prefer live and rough over studio and dead (sterile or whatever). > The guitar adds just enough to make it work. It doesn't have to have any > more, but there is space to add to it too without breaking things. > I can imagine adding shaker, but I think I'll go for a Cabasa (if and when my box with percussion instruments shows up again, that is). The latter allows to emphasize the swing rhythm more than a shaker would. As for the guitar: I'm not sure. I did 15 takes of it today and a rough mix after that. I need fresh ears to decide; at the moment I do favor the D&B version without guitar + Cabasa to come. What still nags me is how to best mix this fake upright bass. thanks for all the feedback, robin

13 years, 1 month

Installed Fedora17, now trying to play sound

by Ivan K

I have a few low-level questions which I am a bit embarrassed by, though hopefully with your help, I can figure a few things out. I recently installed Fedora17 on my machine with the XFCE window manager and I am now just trying to play a sound file with "aplay". The command executes but no sound comes out of my speakers. In addition of the NVidia sound chip on my mother board, I have a M-Audio Audiophile 2496 which is the card that is hooked up to my amplifier/speakers. In the "Applications Menu" there is a "mixer" applications with a "Sound card": drop box with the following options: > HDA NVidia (Alsa mixer) > FG0560 Live! Cam Optia AF (Alsa mixer) > M Audio Audiophile 24.96 (Alsa mixer) > Playback: ICE1712 [Envy24] PCI Multi-Channel I/O Controller Analog Stereo (PulseAudio Mixer) > Playback: Internal Audio Analog Stereo (PulseAudio Mixer) > Capture: VF0560 Live! Cam Optia AF Analog Stereo (PulseAudio Mixer) > Capture: Monitor of ICE1712 [Envy24] PCI Multi-Channel I/O Controller Analog Stereo (PulseAudio Mixer) > Capture: ICE1712 [Envy24] PCI Multi-Channel I/O Controller Analog Stereo (PulseAudio Mixer) > Capture: Monitor of internal Audio Analog Stereo (PulseAudio Mixer) > Capture: Internal Audio Analog Stereo (PulseAudio Mixer) I assume I don't want the NVidia choice, but which of the others do I choose and why? Also, in the "Applications Menu" there are the following: "ALSA Mixer" "Envy 24 Control" "Pulse Audio Volume Control" Do I want to adjust any of these so that I can hear audio out of my sound card? Thank you.

13 years, 1 month

Really new music: an orchestral poem - no joke this time

by Julien Claassen

Hello everyone! It had been sitting here, since there was one last instrument to add. But since Nama is changng a great deal right now, preparing for the next stage, I'd rather not touch the piece. So dear friend, who is not in yet, excuse me. It will come! So the music first: http://juliencoder.de/nama/soit_il_la_vie.ogg http://juliencoder.de/nama/soit_il_la_vie.mp3 This is the last piece of the album of almost the same title "Soit-Il La Vie: Intense, Aimante?" It was recorded in december and january. First about the people helping me on this: There's the unknown doner of the flute - yet to come -, who also did a lot of listening for me throughout the album. there's S. Massy, who also lent me a pair of ears. There was the great FA and two of his students helping me with the Italian bits. My pronounciation - especially in old Italian - is not good. :-) And all throughout there is Her! It really is an orchestral poem, the basis being a sonnet. Each section is dedicated to a couplet of this poem, trying as best as possible to represent the contents. Either using a translation of letters into music, using sounds as such to mirror mentioned images (the bell). Oh yes thanks to Fons and a few other again for pointing me towards those websites dedicated to the synthetical creation of bells. And then of course there's is harmony and rhythm trying to convey meaning. It's all spaced throughout this piece, whatever fits best, whereever it is needed. Instruments used were the wonderful gigatron sample-library by q based on the samples from Taiji-guy - if I remember correctly, a real triangle and again my anonymous doner with a slide guitar. I'm so sorry! There's the nordlead for the bowed contrabass, a string sample from my Korg synth and a Solina String Ensemble sample as a gigasample. As software Nama played the main roll - as ever! Thank you very much again Joel for the tremendous work you put into it! Then there was LinuxSampler, which also played a heavy part in it. Some LADSPA plugins for processing and Fons' jconvolver, without which I couldn't work neither. I can't remember the IRs used for this. There is also one musical quotation from Leo Delibes ballet Sylvia, which is connected to the textual citation. Last but not least: the finished album consists of: "Shout - the song tat shall", "Whisper - Since In Love, Verity Is Altering", "Lullaby -Singng In Lullabies, Vowing In Adoration", "Raw Magic", "A Good Companion" and "Soit-il la Vie: Intense, Aimante". The full album wold also comprise the original poem, but you'll have to excuse me on that point. :-) the dedication of this album is a simple one, since I'm not clever and only know a few tricks of the art, which I tend to use over and over again. :-( I say: let it be a start, a first chapter, that may have interesting chapters following it. Thanks to everyone, who showed patience with me, answering stupid and clever questions, listening, playing and contributing in any other way. That of course includes very much all the developers from around here. You know wyo you are and everybody else does too. :-) Futuristically yours Julien =-=-=-=-=-=-=-=-=-=-=-=- Such Is Life: Very Intensely Adorable; Free And Jubilating Amazement Revels, Dancing On - FLOWERS! ====== Find my music at ====== http://juliencoder.de/nama/music.html ..................................... "If you live to be 100, I hope I live to be 100 minus 1 day, so I never have to live without you." (Winnie the Pooh)

13 years, 1 month

Another old/new bit of music from the arcives

by Julien Claassen

Hello again! Fons thanks for your post. Here is something I recorded back in 2003 or there abouts. It was morning - I can remember that - and I was completely sober. that-s probably, why I remember so clearly. Because a few people asked afterwards, what I might have consumed in preparation of this musical exploit: http://juliencoder.de/nama/bier.ogg http://juliencoder.de/nama/bier.mp3 Eventhough years late, I'd still love feedback. :-) Cheers Julien =-=-=-=-=-=-=-=-=-=-=-=- Such Is Life: Very Intensely Adorable; Free And Jubilating Amazement Revels, Dancing On - FLOWERS! ====== Find my music at ====== http://juliencoder.de/nama/music.html ..................................... "If you live to be 100, I hope I live to be 100 minus 1 day, so I never have to live without you." (Winnie the Pooh)

13 years, 1 month

Compatibility between audio parameters

by Harman Kalra

I have few doubts regarding compatibility between various audio parameters: 1. How can I determine sampling rate, audio bit depth, no of channels of a already recorded audio sample. 2. Suppose I play this same recorded audio sample with my application whose hardware parameters are different from the sample which I received. So in this case what would be the impact on the sound quality. 3. What would be the impact of using different (at capture application and playback application) sampling rate, audio bit depth, no of channels. 4. If possible kindly provide me a link which is related to my queries.

13 years, 2 months

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Linux-audio-user July 2012