Good morning,
I was looking for a good paper (tutorial / documentation) that describes howto
calculate pcm data -- e.g. if I open my sounddevice (/dev/dsp), and sent randomed
data to it, I am not really satisfied; I want to KNOW what data makes what sound.
Of course I know that this is a short describtion of a whole lot of knowledge, but
browsing the archive of http://www.musicdsp.org is a very hard way to REALLY
learn how this works. Have somebody an idea where to begin ?
greetz, Sascha Retzki
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Dear all,
as announced earlier on this list, the 2nd LAD conference will take place
April 29th - May 2nd 2004 at ZKM (Zentrum fuer Kunst und Medientechnologie,
Center for Art and Media) Karlsruhe, Germany.
http://www.linuxdj.com/audio/lad/eventszkm2003.php3
lists presentation material and reports of the 1st conference.
See http://www.linuxdj.com/audio/lad/eventszkm2004.php3
for more information on the 2nd conference.
Many participants of the 1st conference have already confirmed their
participation for the 2nd one. Frank and I would now like to collect
abstracts for planned talks so that we can set up a preliminary program.
We would like to have this available as soon as possible so that we can
advertise the event in computer music journals (such as german Keyboards ;-)
and linux journals (Dave, Daniel, are you listening ?).
If you plan to give a talk on Linux audio development or do a presentation
of music you have done with Linux software, please send an abstract to
both me and Frank Neumann (Frank.Neumann_AT_st_DOT_com). Please estimate
the time you need for your talk so that we can set up a preliminary
schedule.
We have now three different locations for presentations: The lecture hall
we used for the 1st conference, some seminar rooms and the Kubus, which is
considerable larger than the lecture hall and has a built-in studio.
The seminar rooms can be used for LAD internal presentations and discussion.
The Kubus is ideal for presentations of high public interest, especially
practical demonstrations of audio software. The lecture hall will be used
for technical talks on software development. In short terms: Kubus is LAU,
Lecture hall is LAD.
More rooms imply the option of scheduling parallel sessions. We can only
decide on this after we know roughly how many presentations are to be
expected. This is another reason why early registration is helpful.
Given the excellent conditions at ZKM and the many improvements of Linux
audio software, the second conference promises to be even more successful
than its predecessor.
Matthias
--
Dr. Matthias Nagorni
SuSE Linux AG
Deutschherrnstr. 15-19 phone: +49 911 74053375
D - 90429 Nuernberg fax : +49 911 74053483
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the ALSA sequencer already provides 90% of the infrastructure
described. all that is needed is something to read from the game
controller and queue immediate MIDI events ...
Hello,
is there anyone with a version of the LL-patch for SuSE kernels?
(I use 8.2 with 2.4.20). Some hunks of the patch are always in
the SuSE kernel (sometimes with small changes as other variable
names) -- and this lead me to think that the SuSE kernels had
included the LL-patch.
Maybe (having the KEYBOARDS discussion in mind) it would be "a
nice thing" if SuSE (and other distributors) have a LL-kernel
ready to run.
Uwe
--
voiceINTERconnect www.voiceinterconnect.de
... smart speech applications from germany
Hi,
Firstly, some info on myself. I've been a linux user for a few years, and I've been dabbling with computer based music for a long while (Scream Tracker... I still love you!).
Right now, I have a dual boot machine - windows for Cubase SX, linux for everything else.
Every now and then, I have a look at what's going on with linux music software, but so far I can't justify moving from Cubase.
Now, the meat of my mail:
1. I can program. Really, I can. I have a Soft. Eng. degree and I'm going to start writing my PhD thesis soon (within 6 months, hopefully). I've got a basic to good knowledge of quite a few languages: perl, python, C, C++, Java, mostly. So I should be able to write the groovy audio apps I want, right? No. There are huge areas where my knowledge is lacking - optimisation, basic techniques for real-time programming, efficient implementations for standard things, etc. This isn't because I can't learn them, but because, so far, I haven't needed to. I browse around the internet, looking for some kind of repository of this kind of knowledge, but I can't find it. If you know where it is, please let me know. So, my first question is: where does a newbie go to learn? I doubt Native Instruments or Steinberg will be quick to tell me the tricks and hacks that they use.
2. The big app... I see lots of things in development, but that seems to be the problem - they are lots of separate things. Now, I hear that Jack is the next big thing, but is it enough? It seems like a great idea - synchronise multiple multiple apps and mix their output - but I can't see this being enough. I think it seems more suited to using a couple of apps together than for combining instruments into a track. When I write something in Cubase, I expect to click "save" and for all my connections, parameter values, automation, mixer settings, etc. to be stored, ready to be opened next time I feel like it without having to go through a number of apps and remember which files went with this project. Maybe I'm wrong - I hope I am - but Jack doesn't appear to come close to Cubase in this respect. Is there something else out there?
3. I want to know the state of play. Not of one app, but of the whole linux audio scene. Which apps work together? Which apps have debs, rpms, mdks, or whatever. Is there some kind of site like this? If there isn't, how about we build one? Something that would really keep it all together. Imagine:
- Articles for developers and users
- FAQs that cover a whole host of apps
- Info on the current state of apps
- Pre-compiled packages that work together - something like demudi would be good, but more as a work in progress system - something we could all use to test software, interoperability, etc. in an environment that is (as much as possible) what the end users will have.
- Tutorials, links, guidelines. Now, guidelines is a good idea!
- A big, all encompassing TODO list.
- A combined effort on documentation. I think a nice manual that covers a whole audio setup would be good.
4. I'm fully intending to start writing audio apps. My first attempt will be a tracker - something I can cut my audio teeth on and produce something I want. I really do like the tracker paradigm. Anyway, any pointers are welcome - especially concerning things in item 1. I intend to document my progress and hopefully turn it into a guide to writing audio apps for people who are in my position right now. Of course, if it all goes wrong, it might become a what-not-to-do kind of document, but I hope not.
So, this is my first contributin to the list. Please let me know what you think. Flame me, call me a git/idiot/moron/whatever, just don't ignore me ;)
James
What is it?
Lemux is a collection of (GPL) LADSPA instruments based on devices from the
openMSX emulator and other sources (e.g. sidplay2).
It is long from finished, but some instruments are already very usable.
I only tested them with alsamodular, and I'd love to hear from people
who try them with another LADSPA host. Any other feedback is also
highly appreciated.
More info can be found at the website:
http://lumatec.be/joost/lemux/
Greetings, Joost
the current LAD site (http://www.linuxdj.com/audio/lad )
(or http://www.linuxaudiodev.org )
runs on a machine with PHP4 and full MySQL support.
Joern N. (the LAD web-"meister") can install any package he likes
(wi-ki etc) he should just contact me if he needs a MySQL DB
so I can setup it within short time.
This allows us to run any content management system we like,
eg phpnuke, postnuke etc.
I think fragmenting the LAD stuff on many sites does not make
sense because it makes it harder to find the information.
Joern (or Paul W) if you need assistance write me to benno AT gardena.net.
cheers,
Benno
http://linuxsampler.sourceforge.net
-------------------------------------------------
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Hi!
I want to write an app that can synthesize specific Hertz ( keys) at specific times,
like a tracker. I am actually writting the synth, and the following problem is there:
How do I tell my synth() - function that the point in the pattern is reached to play
a a1 for example. I thought about two threads: One synth and one Midi-keyboard
emulator. I am "new" at alsa-programming and I wanted to know if this theory is
possible; Tipps would be ok :)
greetz : Sascha Retzki
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