Linux-audio-dev

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7520 discussions

[linux-audio-dev] [ANN] QLoud v.0.16 - no CVS-trees dependency now

by Andrew Gaydenko

QLoud is a tool to measure loudspeaker frequency response. Find it here: http://gaydenko.com/qloud/ Uwe has released Qwt v.5.0.0rc0. As a result, QLoud doesn't depend on any CVS tree now. v.0.16 is out - INSTALL is changed to be in accordance with Qwt development. Also, min. smoothing was reduced to 1/1024 :-) If you already use the app, you can stay with v.0.15 (no bugs were found). If you have rejected the app because of Qwt CVS-tree dependency - try it now :-) Andrew

19 years, 3 months

[linux-audio-dev] LADSPA preset musings

by Luis Garrido

Hi there! I am in the process of adding preset management to my project FLAM (custom GUIs for LADSPAs, flam.sf.net) which, by the way, is already running under Rosegarden, checkout the SVN repo if you want to give it a try. For those interested I include below the specifications I have came up with regarding preset management. First I toyed with the idea of using SQLite to store the presets, but there were some drawbacks to it (adding an extra dependency, difficulties to manage list order, etc.) I was driven to it by the wish of providing concurrent access from different instances of FLAM but, in the end, I decided this feature was not worth the effort and downgraded it to the possibility of reloading the preset list to get the most up to date version at a certain point. Then I gave a look at the preset API provided by lrdf but I don't like it very much (makes use of uids -for retrieving the presets and for avoiding triplet conflicts-, resulting file difficult to read by a person.) OTOH it is somehow a standard (i.e., ardour uses it, any other app?) I have also thought of RDF/turtle as per the new LV2 spec but, if I am not mistaken, raptor doesn't write turtle and, to be honest, all this subject/predicate/object/ontology stuff seems like a bit of overkill just to store groups of (int, float) pairs, although this may change in LV2 if float is not the only type supported anymore. Another thing I find awkward regarding preset management is that all kind of ports share a common index space, so you have to pick the input control ones among them. This makes the programmer resort to convoluted data structures for what could be expressed, after all, with just an array. Not really a big deal, but having the list of input control ports singled out would make preset management easier. I would be grateful for any advice on this subject. Cheers, Luis --------------------------------------------------------------------- - Presets management interface: --------------------------------------------------------------------- - Keyboard accelerators: Ctrl+[0-9] loads one of the first ten presets in the list (1-based, Ctrl+0 loads item #10.) Ctrl+Shift+[0-9] saves the current status of the plugin in the corresponding position of the list (optional confirmation dialog.) - Context menu: there is a Preset entry in the context menu with three submenus: "preset manager," "load" and "save." "Load" and "save" unfold a list of the available presets to load or save respectively. "Preset manager" opens or brings to front the preset manager. - Preset manager is a non-modal dialog that displays a list of the available presets and the following buttons: - "Save list" dumps the preset list to the default disk location. - "Reload list" reloads the preset list from the default list location. Useful to share changes created in other instances of that FLAM. - "Export" exports the selected preset(s) to a user chosen file in a certain exchange format. - "Import" imports (adds) to the list the presets stored at user chosen file in a certain exchange format. - "Apply/Load/Retrieve/Set/Restore?" sets the plugin ports to the values stored in the preset (accelerator: doubleclick on the list.) - "Store/Save/Overwrite?" saves the status of the plugin to the selected preset (optional confirmation dialog.) - "New" creates a new preset from the current status of the plugin with a default name and enters immediately into rename mode. - "Delete" deletes the selected preset(s) from the list. - "Rename" changes the name of the preset (accelerator: click a selected item on the list.) - "Up" moves the selected preset one position up the list. - "Down" moves the selected preset one position down the list. Buttons "Save List", "Reload List", "New", "Import" are always enabled. Buttons "Apply", "Store", "Rename", "Up", Down" are enabled when only one item in the list is selected. Buttons "Export", "Delete" are enabled when one or more items in the list are selected. Every plugin has two presets files (system and user) organized in a tree following the DSSI recommendation.

19 years, 3 months

[linux-audio-dev] Voice and pitch recog libraries

by Iain Duncan

I'm planning on some trying out some voice and pitch recognition stuff for some ear training utilities. Wondering if anyone can tell me which of the many FOSS libraries for both would be best. Cross platform a bonus, but not essential. Thanks Iain

19 years, 3 months

[linux-audio-dev] www.alsa-project down?

by jaromil

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 re all, anyone knows what happens to the www.alsa-project.org website? i can't reach the website since about 3 days, fortunately the ftp is up. ciao - -- jaromil, dyne.org rasta coder, http://rastasoft.org -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) iD8DBQFFBmGue2QxhLU0C14RAnyYAJ46q1AH2EEF2/gtppANOFC1Y0iv4ACgtvRE PFmkcQYyirvmjQEdN9RatJI= =/oAJ -----END PGP SIGNATURE-----

19 years, 3 months

[linux-audio-dev] very nice looking HW

by Alfons Adriaensen

Any chance of this ever being supported in Linux ? http://www.marian.de/en/products/ucon_cx -- FA Lascia la spina, cogli la rosa.

19 years, 3 months

[linux-audio-dev] New lad.linuxaudio.org

by Thorsten Wilms

Hi! Finaly I'm done with my redesign of http://lad.linuxaudio.org My first aim was fast and easy access to suscription and archives. Contents of the Contrib directory are now under events. With the exception of 2003_practical-linux, which I don't know what to do with (bunch of xml slides?). Kicked all PHP and took care of validating XHTML 1.0 Strict. History and Credits are now combined. Would be good if those who remember check the text. I hope the new version of the LAD logo is ok :) Plan to add a download section also containing the old one later on. Open for all suggestions, remarks and criticism :) -- Thorsten Wilms

19 years, 3 months

[linux-audio-dev] Canorus 0.0.2 released

by Reinhard

Hi, Canorus, the successor to the music score editor NoteEdit is looking for developers wanting to join the project. The project is hosted on berlios and provides SVN access to the sources as well as a Wiki for project discussions. I put out a first release based on the current SVN. You can fetch it from http://prdownload.berlios.de/canorus/canorus-0.0.2.tar.bz2. Homepage: http://canorus.berlios.de Wiki: http://canorus.berlios.de/wiki/index.php/Main_Page Contact: http://canorus.berlios.de/contact.html Canorus is the next generation music score editor (multiple viewports of the same score, scripting support, score source view, fast and intuitive UI, free software and cross-platform) . Technically it is based on Qt4, uses CMake as project management tool, swig for scripting / macros integration (primary script languages are ruby and python) and the cross platform rtmidi library for the MIDI playback. Canorus is searching for developers with experience in the fields C++, Ruby, Qt4, XML, Parsing, User Interfaces, Music Composition and Theory, Translators, Score Editing Unit Tests. Some of the tasks are: - Add several UI parts (either via Ruby or in the core) like Settings, several different property perspectives, Lyrics, Import / Export - Development of a robust test engine for the user interface and its core (could be done via scripting) - Import parsers for ABC Music, Lilypond, MusicXML, MUP (& NoteEdit), MusiXTeX, PMX, MIDI etc. - Export for several formats like the above - Recording and replay of macros - Multi-Level Undo/Redo (for different perspectives) If you want to join the project just mail me your berlios unix name (user name you use to log into berlios). I'd use that name for a wiki account too and will send you a password you should change as soon as possible. A big "thank you!" to everyone making this project possible. Best regards, Reinhard Katzmann -- Software-Engineer, Developer of User Interfaces Project: Canorus - the next generation music score editor - http://canorus.berlios.de GnuPG Public Key available on request

19 years, 3 months

[linux-audio-dev] Re: very nice looking HW

by John Rigg

Hmm. The manufacturer's web page describes it as a 32 channel interface but I could only count 16 :( John

19 years, 3 months

[linux-audio-dev] Marian Trace D4

by Joshua Boyd

It appears to have been more than a year since the company was mentioned at all. Has anyone ever tried contacting them about specs to write drivers for newer devices than the ones listed on their developer page? http://developers.marian.de/ Specifically, say the Trace D4 cards? It looks like the newer cards like the Trace D4 use a FPGA for everything rather than some sort of programable logic attached to a PLX PCI interface chip, which I'm guessing means that their legacy documentation bears little relevence to their current cards. They do invite people to contact them about information not found there. One appealing aspect of their products is they allow hardware syncing of different cards (which M-Audio also does), and they have a wide variety of card types (all analog, all digital AES, ADAT, with or without midi, etc). -- Joshua D. Boyd jdboyd(a)jdboyd.net http://www.jdboyd.net/ http://www.joshuaboyd.org/

19 years, 3 months

[linux-audio-dev] Greenphone

by Jens M Andreasen

I stumbled on this one today: http://www.linuxdevices.com/news/NS8030785497.html - Trolltech, best known for development tools and Linux application stacks for phones and other mobile devices, will ship an "open" Linux-based phone in September. The "Greenphone" features a user-modifiable Linux OS, and is meant to jumpstart a third-party native application ecosystem for Linux-based mobile phones. [...] So far I've figured out that it's an Xscale of the kind with mmx, which suits my purposes just fine. And that there is a /dev/dsp in there somewhere :-) I have no idea what kind of price point they are considering, but I have notifyed my significant other that this is the *ultimate* christmas present for a u**x geek ... I suppose one will have to "play" it by wawing ones hand in front of the camera?

19 years, 3 months

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Linux-audio-dev