I am trying to write an application that will monitor volume level coming in
through the line-in jack on my soundcard. Is this possible using alsa, and
if so, does anyone know of any examples, or am I in the wrong place?
_________________________________________________________________
Dont just search. Find. Check out the new MSN Search!
http://search.msn.click-url.com/go/onm00200636ave/direct/01/
Greetings:
Last month I updated the VST/Linux tutorial at
http://www.djcj.org/LAU/quicktoots/toots/vst-plugins/. Due to
circumstances, the updated page has only recently gone on-line, but no
further material needed to be added.
Please note that this update is the last that will be done for that
tutorial. As you can read on the updated page, I now feel that the FST
and DSSI projects are the currently preferred solutions for using
VST/VSTi plugins under Linux. Both systems are easy to build and use, so
I'll leave further explication to the developers of those projects.
I suppose at some point someone should add some material regarding the
use of VST plugins with Ardour, but it should really go on the Ardour
wiki (or maybe it is already there?).
Thanks to Patrick Shirkey for hosting this tutorial on his djcj site.
Best regards,
dp
Hi all,
I hope this is a simple question. I'm trying to compile Rezound on OSX,
and I'm getting this:
../../../config/platform/platform.h:10:3: warning: #warning no platform
determined!
Which leads to some other troubles later on.
So I've created a config/platform/darwin.h file (based on the bsd.h
file) which starts like this:
#ifndef __rez_platform_darwin_H__
#define __rez_platform_darwin_H__
#if defined(__Darwin)
#define rez_OS_DARWIN
#endif
And added OS_DARWIN to the platform.h file:
#ifndef __platform_H__
#define __platform_H__
#include "linux.h"
#include "solaris.h"
#include "bsd.h"
#include "darwin.h"
#if !defined(rez_OS_DARWIN) && !defined(rez_OS_LINUX) &&
!defined(rez_OS_SOLARIS) && !defined(rez_OS_BSD)
#warning no platform determined!
#endif
#endif
But I still get the error. In the darwin.h file, I have tried various
different syntax for defining Darwin:
(__darwin), (darwin), __Darwin__), etc etc
With no result. Can anybody shed some light on the right way to define
the platform in this situation?
thx + happy new year,
derek
--
derek holzer ::: http://www.umatic.nl
---Oblique Strategy # 81:
"Go to an extreme, move back to a more comfortable place"
Hi,
I have a question for some audio professionals out there.
What is the smallest sensible gain control step in dB.
Is it 0.5dB ?
I am asking, because if one is using a digital gain control in a 24bit
fixed point DSP, once could use almost any step size, so I am looking
for the smallest sensible size to use.
Some people mentioned earlier on a previous thread that there was
something called soft gain control, where the user moves the gain up a
step, but the mixer gradually(fairly quickly) adjusts the volume to the
new level, so no clicks are heard on the speakers. How does these soft
gain controls prevent the clicking? Do they wait for the zero crossing
point to adjust the gain?
James
tom christie <christie.tom(a)gmail.com> writes:
> I've written a little template program that just reads from one
> audio file and writes to another, using the sox library stlib.a.
> It's pretty simple to change it to do what you want.
Thanks, I'll give it a whirl. I still think that the code of the sox
executable should be able to trim just zeros at least at the start of
the file, and that the docs are hard to understand and missing stuff,
but there is nothing except list the complaints that I feel capable of
doing. I strongly suspect that the code does something different from
what it is supposed to do, but I find it impossible to figure out what
it is supposed to do, either. So I might be wrong about that.
--
David Kastrup, Kriemhildstr. 15, 44793 Bochum
Hi list(s),
just a short reminder: The Call for Papers, Call for Music etc. for the
4th International Linux Audio Conference (LAC2006) is still running until
January 8th, 2006. That means for those of you who drive home for Christmas
like me - use the time wisely :-). Write a paper, compose a piece, think
of a software demo - and submit your entry in time.
See all the details at: http://lac.zkm.de
Hoping to hear from you (and then see you) soon,
Goetz Dipper & Frank Neumann
LAC2006 Organization
Some colleauges of mine do need a tool for coding and decoding of
high-order Ambisonic for their research. They are aiming for seventh
order, played back over sixteen loudspeakers. They are now planning to
implement this, using either JACK or LADSPA.
As I have some experience with linux audio, I got involved. So I am
seeking some advice and answers here. The first thing I would like to
know is: Does anything like this already exist?
(I think there are some LDASPA plugins for Ambisonic, but I am not aware
of how high order these are.)
Secondly, what would be the better choice, JACK or LADSPA? We are
probably going to need som GUI on it, to configure the thing. And we
would like to have the flexibility to alter the coding/decoding
coefficients, turn on/off some filtering and so on.
With kind regards
Asbjørn
Hi all,
I started out wondering who uses Denemo, for notation editing, but my
idea quickly evolved to this.
I would like to know who on the list uses graphical notation editors,
which one?, what are in your eyes the advantage of your particular
editor, the disadvantages? I realize that there may be people using Sibelius/Finale, which aren't linux programs, but I was running Finale for quite a while on wine/win4lin for quite a while because of legacy issues.
Also how many people use non graphical music notation. Mup, LilyPond,
Guido, abc, common music notation etc. Why? What is the advantage
them, disadvantage.
This will help Denemo see what linux musicians/developers use and
hopefully help us see what we can do to make Denemo more useful.
Thanks
Aaron
Paul Davis:
On Fri, 2005-12-16 at 12:15 +0900, chandrasheakhar singh wrote:
>> Dear All,
>>
>> After successful implementation of player + synthesizer as a loadable
>kernel module in linux 2.6.11
>> for OMAP
>> 2420. My next mission is to implement synth and sequencer seperately
>in linux kernel 2.6.11.
>>
>> I dont have much idea of VIRMIDI implementation and how i have to add
>my synth as default kernel
>> synth, though
>> GPL issue is still not very clear as we will open our source code for
>public or not.
>>
>> Can any one pass me some good link which describe how to implement
>synth as VIRMIDI and sequncer
>> separately in linux 2.6.11.
>
> are you out of your mind? partly kidding, partly serious.
>
He he. :-)
I like that kind of thinking though. And what would be even cooler
would be something like a graphical web-browser or an e-mail reader
implemented as a kernel module. ;-)
--
