22 Feb
2007
22 Feb
'07
5:31 p.m.
Hi, I need to build an application that can process sound from an
external instrument (a midi keyboard, for example). I also need to
create a graphic interface and I'd like to know which language maybe
best to do this.
Any suggestion?
Thanks, bye.
22 Feb
22 Feb
6 p.m.
On 2/22/07, Carlo Trimarchi <mr.spoon21(a)gmail.com> wrote:
Hi, I need to build an application that can process
sound from an
external instrument (a midi keyboard, for example). I also need to
create a graphic interface and I'd like to know which language maybe
best to do this.
Have you looked to see if there isn't already an application in
development that could suit your needs? You might even be able to help
in the development of something like Rosegarden or Muse or Ardour.
-- Brett
------------------------------------------------------------
"In the rhythm of music a secret is hidden;
If I were to divulge it, it would overturn the world."
-- Jelaleddin Rumi
6:20 p.m.
Have you looked to see if there isn't already an
application in
development that could suit your needs? You might even be able to help
in the development of something like Rosegarden or Muse or Ardour.
Well, I need to do it for the university. So, in a way or another, I
have to build something :D
I was thinking to use C++, but I don't know from where to start. I
mean, I know the language, but I don't know how to process sound with
it.
6:23 p.m.
Carlo Trimarchi wrote:
pure data can be regarded as visual programming language and can process
audio and midi data so this might be a start...
Cheers,
Malte
--
Malte Steiner
media art + development
-www.block4.com-
Have you
looked to see if there isn't already an application in
development that could suit your needs? You might even be able to help
in the development of something like Rosegarden or Muse or Ardour.
Well, I need to do it for the university. So, in a way or another, I
have to build something :D
I was thinking to use C++, but I don't know from where to start. I
mean, I know the language, but I don't know how to process sound with
it.
6:32 p.m.
Carlo Trimarchi wrote:
Here is a tutorial on interfacing with alsa:
http://equalarea.com/paul/alsa-audio.html
And here is an Alsa API reference:
http://www.alsa-project.org/alsa-doc/alsa-lib/
Here is some JACK documentation:
http://jackit.sourceforge.net/docs/
And here is some LADSPA authoring documentation:
http://gdam.ffem.org/ladspa-doc/ladspa-3.html
That should keep you busy ;)
Have you
looked to see if there isn't already an application in
development that could suit your needs? You might even be able to help
in the development of something like Rosegarden or Muse or Ardour.
Well, I need to do it for the university. So, in a way or another, I
have to build something :D
I was thinking to use C++, but I don't know from where to start. I
mean, I know the language, but I don't know how to process sound with
it. 
7:04 p.m.
On Thu, 2007-02-22 at 23:20 +0100, Carlo Trimarchi wrote:
Look at some of the other apps. My advice on graphics is to use QT.
Jan
--
Jan 'Evil Twin' Depner
http://myweb.cableone.net/eviltwin69
"Life should NOT be a journey to the grave with the intention of
arriving safely in an attractive and well preserved body, but rather to
skid in sideways, chardonnay in one hand, chocolate in the other, body
thoroughly used up, totally worn out, and screaming 'WOO HOO, what a ride'"
Have you
looked to see if there isn't already an application in
development that could suit your needs? You might even be able to help
in the development of something like Rosegarden or Muse or Ardour.
Well, I need to do it for the university. So, in a way or another, I
have to build something :D
I was thinking to use C++, but I don't know from where to start. I
mean, I know the language, but I don't know how to process sound with
it. 
6:13 p.m.
2007/2/22, Carlo Trimarchi <mr.spoon21(a)gmail.com>om>:
Hi, I need to build an application that can process
sound from an
external instrument (a midi keyboard, for example). I also need to
create a graphic interface and I'd like to know which language maybe
best to do this.
Any suggestion?
Thanks, bye.
I do agree with Brett, but if you are willing to develop something
new, take a look at the CLAM project.
http://clam.iua.upf.edu/
Ciao
6:22 p.m.
Hallo!
Hi, I need to build an application that can process
sound from an
external instrument (a midi keyboard, for example). I also need to
create a graphic interface and I'd like to know which language maybe
best to do this.
Well, what exactly do you want to build: an end-user application or a
performance environment, installation ?
ad 1) see the other answers
ad 2) use pd (pure data), supercollider or something similar
LG
Georg
6:36 p.m.
Well, what exactly do you want to build: an end-user
application or a
performance environment, installation ?
My intention was to build an end-user application.
One plays notes on the keyboard and it memorizes and shows them on a
staff. There you can modify the duration of a note and other things
and then playback.
I wanted to implement some other functions: for example, one before
choose the notes on the staff, the program plays it but with no sound
and you have to follow the note and it tells you the errors in playing
them. For example, wrong notes, bad timing...
And well, I don't know yet what else. I have to think.
ad 1) see the other answers
ad 2) use pd (pure data), supercollider or something similar
I installed pure-data yesterday, but I have to learn using it and I'm
not sure if it will be of some help.
6:56 p.m.
Carlo Trimarchi wrote:
One plays notes on the keyboard and it memorizes and
shows them on a
staff. There you can modify the duration of a note and other things
and then playback.
Ok, so then you probably want to build a MIDI application, not audio.
That narrows it down a bit. :) Translating raw MIDI input to a score can
be a tough problem, though. You might wish to take a look at the sources
of the Rosegarden sequencer/notation program to see how they do it.
Rosegarden has an "advanced" MIDI quantiser, but I'm not sure how well
it deals with tempo fluctuations and complex meters. Programs that just
take raw MIDI input and figure out tempo, upbeats, meter, tuplets etc.
all on their don't exist yet. This is a top notch research problem
related to the automatic transcription of music.
Welcome to the exciting world of computer music! :) If you're new to
this, you might wish to read a good book (or two or three...) on the
subject. Curtis Roads' Computer Music Tutorial would be a good start, I
think.
Albert
--
Dr. Albert Gr"af
Dept. of Music-Informatics, University of Mainz, Germany
Email: Dr.Graef(a)t-online.de, ag(a)muwiinfa.geschichte.uni-mainz.de
WWW: http://www.musikinformatik.uni-mainz.de/ag
7:17 p.m.
Programs that just
take raw MIDI input and figure out tempo, upbeats, meter, tuplets etc.
all on their don't exist yet. This is a top notch research problem
related to the automatic transcription of music.
Indeed, my idea was to just save the note, (C, D, E etc.) with a
standard duration. I mean, even if you play a note for three seconds
it just recognize the note and show it on the staff. Then you can
modify the duration as you like. Maybe this is a bit simpler. Or not?
23 Feb
23 Feb
6:25 a.m.
Carlo Trimarchi wrote:
Indeed, my idea was to just save the note, (C, D, E
etc.) with a
standard duration. I mean, even if you play a note for three seconds
it just recognize the note and show it on the staff. Then you can
modify the duration as you like. Maybe this is a bit simpler. Or not?
Yes, sure. That's what all MIDI sequencers have, known as step mode input.
--
Dr. Albert Gr"af
Dept. of Music-Informatics, University of Mainz, Germany
Email: Dr.Graef(a)t-online.de, ag(a)muwiinfa.geschichte.uni-mainz.de
WWW: http://www.musikinformatik.uni-mainz.de/ag
22 Feb
22 Feb
7:23 p.m.
Keykit looks interesting for Midihandling:
http://www.nosuch.com/keykit/index.html
Look here for more suggestions:
http://www.nosuch.com/tjt/plum.html
Cheers,
Malte
--
Malte Steiner
media art + development
-www.block4.com-
7:05 p.m.
2007/2/22, Carlo Trimarchi <mr.spoon21(a)gmail.com>om>:
I found this: http://improv.sapp.org/
It doesn't seem to be new stuff, but maybe it can help.
Stefano
P.S.: Carlo, are you Italian? In such case where are you studying?
Well, what
exactly do you want to build: an end-user application or a
performance environment, installation ?
My intention was to build an end-user application.
One plays notes on the keyboard and it memorizes and shows them on a
staff. There you can modify the duration of a note and other things
and then playback.
I wanted to implement some other functions: for example, one before
choose the notes on the staff, the program plays it but with no sound
and you have to follow the note and it tells you the errors in playing
them. For example, wrong notes, bad timing...
And well, I don't know yet what else. I have to think.
ad 1) see the other answers
ad 2) use pd (pure data), supercollider or something similar
I installed pure-data yesterday, but I have to learn using it and I'm
not sure if it will be of some help.
6:28 p.m.
Carlo Trimarchi wrote:
Hi, I need to build an application that can process
sound from an
external instrument (a midi keyboard, for example). I also need to
create a graphic interface and I'd like to know which language maybe
best to do this.
From the top off my head: C/C++, PD
(http://puredata.info/),
SuperCollider (http://supercollider.sourceforge.net/),
Chuck
(http://chuck.cs.princeton.edu/), Q (http://q-lang.sourceforge.net), and
apparently nowadays even Java (http://java.sun.com) and Python
(http://www.python.org). There are probably at least a dozen others. Did
you check Dave's Linux audio pages (http://linux-sound.org)?
HTH,
Albert
--
Dr. Albert Gr"af
Dept. of Music-Informatics, University of Mainz, Germany
Email: Dr.Graef(a)t-online.de, ag(a)muwiinfa.geschichte.uni-mainz.de
WWW: http://www.musikinformatik.uni-mainz.de/ag
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linux-audio-dev@lists.linuxaudio.org
14 comments
8 participants
participants (8)
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Albert Graef -
Brett W. McCoy -
Carlo Trimarchi -
Garett Shulman -
Georg Holzmann -
Jan Depner -
Malte Steiner -
Stefano D'Angelo