Linux-audio-user October 2006

linux-audio-user@lists.linuxaudio.org

154 participants
132 discussions

[linux-audio-user] Re: Display audio input as waveform

by Juhana Sadeharju

>From: Dominic Sacr? <dominic.sacre(a)gmx.de> > >But during recording Ardour is not very useful for this, because the >waveform is only displayed in chunks of one second or something, and it >wraps around every time the play head reaches the right edge of the >window. So, the playhead/recordhead stays fixed at the screen, the waveform moves continuously pixel-by-pixel, and new waveform pixels appear immediately. Fairlight and many other professional software works the same way: the playhead stays fixed at the screen. Perhaps Ardour should have such a waveform mode. Juhana -- http://music.columbia.edu/mailman/listinfo/linux-graphics-dev for developers of open source graphics software

18 years, 6 months

[linux-audio-user] ICMC 2006

by Hans Fugal

Is anybody else headed to New Orleans in a few weeks? It would be fun to get together. http://icmc2006.org/ -- Hans Fugal ; http://hans.fugal.net There's nothing remarkable about it. All one has to do is hit the right keys at the right time and the instrument plays itself. -- Johann Sebastian Bach

18 years, 6 months

[linux-audio-user] Mainstream Real Time

by Folderol

Some of you might be interested in this. http://www.linuxdevices.com/news/NS9566944929.html -- Will J G

18 years, 6 months

[linux-audio-user] freebob hw support

by Rik Baeten

Hello, For firewire audio cards like the Presonus Firebox (or FA-101, Quatafire, Phase 88): Are the following features already supported by freeBoB or is it possible that they will be supported somewhere in the future: 1) "zero-latency support" - Does freeBoB support the zero latency DSP mixer to mix live input audio streams with the software output stream? 2) control panel compatibility - Can I set the different special features in the software, like: - +12 dB input level boost - Choose clock source 3) audio patching and mixing - I suppose I can do everything with jack. 4) typical latency - Is the smallest latency without xruns (fast enough computer with real-time kernel) considerably different with any of these devices? Any figures? thanks! -- Rik Baeten http://www.ikrik.org

18 years, 6 months

[linux-audio-user] ot-ish : trackballs

by greg

Just wondering if anybody has any experience using trackballs. I have the impression that it would be more ergonomic and might offer better precision/control for selections, etc. It looks like Kensington($$$) and logitech are the only companies making them now.

18 years, 6 months

[linux-audio-user] Audio Promotion

by Carlo Capocasa

Strongly looking into the "Free" business (yes, I said 'free' AND 'business') I ran across a world called "Second Life". I know, they're a silicon valley company funded by venture capitalists and hence, they are inherently evil and all. There source code is not released as GPL (yet). But. A whole lot of people 'come' there to get away from their lives, which is a tremendous opportunity for musicians like us. Here's how it works. You download a client (linux client is available in 'alpha stage' and has proven stable for me, XUbuntu 6.06 LTS, Dell Inspiron). What you get is essentially a cross between an online roleplaying game, a chat network, and a rich set of 3D modelling tools. So you go into this vast world, and all these other people are there. What's most amazing, they have a currency that can be converted into U.S. dollars at an exchange rate that works similarly to converting to other currencies. And the beef is, they support streaming audio into virtual 'land parcels', and the beef of beef is, they support doing that in OGG Vorbis. Since I am building my concept of Online-Centered audio promotion that also enables people to make a living, while preserving everyone's authority over their own computers, this thing appears to be a godsend. There are already musicians broadcasting LIVE concerts in there. Anyone who would like to look into the possibilities with me is very welcome to drop me a line: theman -AT- carlocapocasa -DOT- com. Or just would like some help getting sat up. The URL is: http://www.secondlife.com. My Second Life persona is called 'Carlo Andree'. With this information you can add me to your 'friends' list, and as a LAU participant you are warmly invited to. We have the potential here to: Be grande artists, retain creative control, earn a wealthy living, AND preserve and further the goals of a free society. Warm invitations to participate, and I feel this is just one more useful tool. Carlo

18 years, 6 months

[linux-audio-user] Display audio input as waveform

by Dominic Sacré

Hi, I'm looking for a program that lets me watch the audio signal from one or more jack inputs as a waveform. I don't need it to record anything, just to monitor the input in realtime (i.e. continuously scrolling). I'd appreciate any suggestions. Dominic

18 years, 6 months

[linux-audio-user] QUICKTOOTS: Most Loaded Desktop Competition

by Patrick Shirkey

Quicktoots :: http://quicktoots.linuxaudio.org NOW ONLINE FOR YOUR VIEWING PLEASURE!!! **************************************************************************** The Most Loaded Linux Audio Desktop Competition This is a little competition to see who can come up with the most heavily loaded and well laid out (cluttered might be a better word) desktop screenshot while running Linux Audio Applications. Rules 1. The most popular will be given top spot on the LAU Guide. 2. All submissions will be presented as the next Quicktoot. 3. There is no size restriction. 4. Video/animation/flash and audio examples will also be accepted. 5. Either post the url to Linux Audio Users mailing list. or send the entries directly to pshirkey at boosthardware dot com. * Round 1 Submissions now closed. Voting is in place through viewing popularity. No cheating please. System is purposefully simple as we expect this audience to be genuinely interested in results. ***************************************************************************** ------------- Background ------------- The purpose of the Quicktoots are to provide a community resource of informative guides for using Linux audio applications. The Quicktoots are the brainchild of Dave Phillips the man responsible for the most comprehensive webpage devoted to Linux audio applications. The Linux Sound and Midi page. Your one stop resource for Linux sound software. http://www.linux-sound.org If you are in the position to link to any of the quicktoots please link to the main page. That way we can keep more accurate statistics on the amount of people viewing the pages. If you are interested in contributing to the Quicktoots please let us know. All work must be submitted to either Dave or myself and we will give advice or make changes to ensure our publishing standard is met. If you are not able to send html don't worry because I am willing to format any braindumps. ----------------------- Cheers. -- Patrick Shirkey - Boost Hardware Ltd. Http://www.boosthardware.com Http://lau.linuxaudio.org - The Linux Audio Users guide ======================================== "Anything your mind can see you can manifest physically, then it will become reality" - Macka B

18 years, 6 months

[linux-audio-user] Linux compatibile controller keyboard?

by yonatan

Hello, Can anyone offer experiences on using either of these controllers with Linux? E-Mu XBoard25 (or XBoard49) Edirol PCR-M30 (or PCR-M50) This page only mentions the XBoard (although it mentions the older Edirol without the M): http://www.qbik.ch/usb/devices/search_res.php?pattern=midi+keyboard This page mentions both of the above makes as working: http://ubuntustudio.com/wiki/index.php/Audio_Hardware#Edirol_PCR-M50_USB_ke… Other than the above, searching the list turned up some questions about the XBoard, and I couldn't find anything about the Edirol. It looks like they will both work, but any more information would be helpful. Thanks, Yonatan -- View this message in context: http://www.nabble.com/Linux-compatibile-controller-keyboard--tf2428499.html… Sent from the linux-audio-user mailing list archive at Nabble.com.

18 years, 6 months

[linux-audio-user] Midi data arrives, but gets stuck in ALSA's buffer

by Jens Gulden

Hello, very weird: cat /proc/asound/card2/midi0 -> MidiSport 2x2 Output 0 Tx bytes : 0 Output 1 Tx bytes : 0 Input 0 Rx bytes : 1186 Buffer size : 4096 Avail : 1186 <--- ### SHOULD BE 0, NOT ==RX BYTES! ### Overruns : 0 Input 1 Rx bytes : 0 Instead of passing the data further to the connected timidity, it gets stuck in the receive-buffer. When 4096 is reached, overruns start to count up. Connections have been set up using qjackctl. vkeybd->timidity works fine. The system is Musix0.50b12, realtime-kernel 2.6.15.4, with manually added MidiSport2x2 firmware. However, I don't think this is a typical "My-MidiSport-does-not-run-on-Musix" problem, as the firmware successfully loads and the MidiSport gets recognized as available device in ALSA. Even the data seems to arrive well as shown by "Rx bytes" (number of bytes per note-event is correct). What is wrong? Further information: cat /proc/asound/cards -> 0 [D3 ]: USB-Audio - Direct Mix USB 3 Aardvark Computer Systems Direct Mix USB 3 at usb-0000:00:07.2-1.3, full speed 1 [Solo1 ]: ES1938 - ESS ES1938 (Solo-1) ESS ES1938 (Solo-1) rev 0, irq 10 2 [M2x2 ]: USB-Audio - MidiSport 2x2 M-Audio MidiSport 2x2 at usb-0000:00:07.2-1.2, full speed cat /proc/asound/devices -> 16: [0- 0]: digital audio playback 24: [0- 0]: digital audio capture 0: [0- 0]: ctl 1: : sequencer 33: : timer 40: [1- 0]: raw midi 36: [1- 0]: hardware dependent 48: [1- 0]: digital audio playback 56: [1- 0]: digital audio capture 32: [1- 0]: ctl 72: [2- 0]: raw midi 64: [2- 0]: ctl cat /proc/asound/modules -> 0 snd_usb_audio 1 snd_es1938 2 snd_usb_audio cat /proc/asound/version -> Advanced Linux Sound Architecture Driver Version 1.0.10rc3 (Mon Nov 07 13:30:21 2005 UTC). Thanks for help, Jens

18 years, 6 months

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Linux-audio-user October 2006