23 Sep
2010
23 Sep
'10
3:45 a.m.
Following a wikipedia link on karplus-strong synthesis posted
recently, I found this, which appears to be the online fount of all
knowledge for physical modelling and sound synthesis:
https://ccrma.stanford.edu/~jos/pasp/
(with links to examples, code, etc).
PHYSICAL AUDIO SIGNAL PROCESSING
FOR VIRTUAL MUSICAL INSTRUMENTS AND AUDIO EFFECTS
JULIUS O. SMITH III
Center for Computer Research in Music and Acoustics (CCRMA)
Department of Music, Stanford University, Stanford, California 94305 USA
I figure someone will find this interesting. Plus it's cheaper than
buying the book:
``Physical Audio Signal Processing'', by Julius O. Smith III, W3K
Publishing, 2010, ISBN 978-0-9745607-2-4.
Copyright © 2010-09-08 by Julius O. Smith III
Center for Computer Research in Music and Acoustics (CCRMA),
Stanford University
Niels
http://nielsmayer.com
PS: Speaking of CCRMA. as seen recently in Linux Journal (
http://www.linuxjournal.com/article/10725 ):
"Systems designed for power users tend to be both slick and decadent,
armed to the teeth with the kind of tools that would make most end
users crawl into a straitjacket and whine for their mommies. The
studio distributions, such as PlanetCCRMA and 64 Studio, tend to be
this variety." (i think that's a geek's way of making a compliment).
23 Sep
23 Sep
5:14 p.m.
On Wed, Sep 22, 2010 at 9:45 PM, Niels Mayer <nielsmayer(a)gmail.com> wrote:
Following a wikipedia link on karplus-strong synthesis
posted
recently, I found this, which appears to be the online fount of all
knowledge for physical modelling and sound synthesis:
https://ccrma.stanford.edu/~jos/pasp/
(with links to examples, code, etc).
Just FYI, many of the algorithms in that book are available
encapsulated in C++ classes here:
http://ccrma.stanford.edu/software/stk/
Steve
24 Sep
24 Sep
3:45 p.m.
New subject: a treasure trove of information on "Physical Audio Signal Processing"
On Wed, 22 Sep 2010 18:45:03 -0700
Niels Mayer <nielsmayer(a)gmail.com> wrote:
Following a wikipedia link on karplus-strong synthesis
posted
recently, I found this, which appears to be the online fount of all
knowledge for physical modelling and sound synthesis:
https://ccrma.stanford.edu/~jos/pasp/
(with links to examples, code, etc).
wow, looks impressive. Does someone know how one would go about to make
it a .ps or .pdf, for easier reading and printing? Or is it allready
avaiable on the site and I missed it?
Also - I guess most of you know about this - here is another good
online source for more generic DSP:
http://www.dspguide.com/
renato
PHYSICAL AUDIO SIGNAL PROCESSING
FOR VIRTUAL MUSICAL INSTRUMENTS AND AUDIO EFFECTS
JULIUS O. SMITH III
Center for Computer Research in Music and Acoustics (CCRMA)
Department of Music, Stanford University, Stanford, California
94305 USA
I figure someone will find this interesting. Plus it's cheaper than
buying the book:
``Physical Audio Signal Processing'', by Julius O. Smith III, W3K
Publishing, 2010, ISBN 978-0-9745607-2-4.
Copyright © 2010-09-08 by Julius O. Smith III
Center for Computer Research in Music and Acoustics (CCRMA),
Stanford University
Niels
http://nielsmayer.com
PS: Speaking of CCRMA. as seen recently in Linux Journal (
http://www.linuxjournal.com/article/10725 ):
"Systems designed for power users tend to be both slick and decadent,
armed to the teeth with the kind of tools that would make most end
users crawl into a straitjacket and whine for their mommies. The
studio distributions, such as PlanetCCRMA and 64 Studio, tend to be
this variety." (i think that's a geek's way of making a
compliment). _______________________________________________
Linux-audio-dev mailing list
Linux-audio-dev(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-dev 
26 Sep
26 Sep
4:17 p.m.
2010/9/23 Niels Mayer <nielsmayer(a)gmail.com>om>:
Following a wikipedia link on karplus-strong synthesis
posted
recently, I found this, which appears to be the online fount of all
knowledge for physical modelling and sound synthesis:
https://ccrma.stanford.edu/~jos/pasp/
(with links to examples, code, etc).
I recently (last friday) got my MSc graduation with a thesis on
physics-based (a.k.a. physical) modeling for sound processing and was
just about to post a link on this mailing list.
http://naspro.atheme.org/public/mt_dangelo.pdf
It contains a (not very deep) theoretical introduction to
physics-based modeling, cites some free/open source projects such as
FAUST, JACK, LV2, Ingen, etc., describes a new FAUST-like
(conceptually but not syntactically) programming language for the task
called Permafrost, whose compiler I released under a BSD license - it
generates LV2 plugins, and in the end a concrete use case is examined
by developing a tube amplifier simulator (the whole source code is
included in an appendix).
The "Linux Audio community", and especially some people infesting this
list ;-), is also listed in the acknowledgements, so I take the
opportunity to thank you all for having helped me learning so many
things about audio processing in these years, either through normal
discussion or flames.
Best regards,
Stefano
PHYSICAL AUDIO SIGNAL PROCESSING
FOR VIRTUAL MUSICAL INSTRUMENTS AND AUDIO EFFECTS
JULIUS O. SMITH III
Center for Computer Research in Music and Acoustics (CCRMA)
Department of Music, Stanford University, Stanford, California 94305 USA
I figure someone will find this interesting. Plus it's cheaper than
buying the book: 
8:49 p.m.
Excerpts from Stefano D'Angelo's message of 2010-09-26 16:17:43 +0200:
2010/9/23 Niels Mayer <nielsmayer(a)gmail.com>om>:
Hey Stefano,
congratulations to your MSc :)
I'm about to start my BSc :P
I guess your paper might be a good resource for me at some point in the
future :)
Regards,
Philipp
Following a wikipedia link on karplus-strong
synthesis posted
recently, I found this, which appears to be the online fount of all
knowledge for physical modelling and sound synthesis:
https://ccrma.stanford.edu/~jos/pasp/
(with links to examples, code, etc).
I recently (last friday) got my MSc graduation with a thesis on
physics-based (a.k.a. physical) modeling for sound processing and was
just about to post a link on this mailing list.
http://naspro.atheme.org/public/mt_dangelo.pdf
It contains a (not very deep) theoretical introduction to
physics-based modeling, cites some free/open source projects such as
FAUST, JACK, LV2, Ingen, etc., describes a new FAUST-like
(conceptually but not syntactically) programming language for the task
called Permafrost, whose compiler I released under a BSD license - it
generates LV2 plugins, and in the end a concrete use case is examined
by developing a tube amplifier simulator (the whole source code is
included in an appendix).
The "Linux Audio community", and especially some people infesting this
list ;-), is also listed in the acknowledgements, so I take the
opportunity to thank you all for having helped me learning so many
things about audio processing in these years, either through normal
discussion or flames.
Best regards,
Stefano PHYSICAL AUDIO SIGNAL PROCESSING
FOR VIRTUAL MUSICAL INSTRUMENTS AND AUDIO EFFECTS
JULIUS O. SMITH III
Center for Computer Research in Music and Acoustics (CCRMA)
Department of Music, Stanford University, Stanford, California 94305 USA
I figure someone will find this interesting. Plus it's cheaper than
buying the book:
27 Sep
27 Sep
4:35 p.m.
2010/9/26 Philipp Überbacher <hollunder(a)lavabit.com>om>:
congratulations to your MSc :)
Thank you. :-)
I'm about to start my BSc :P
I guess your paper might be a good resource for me at some point in the
future :)
If you want to do physics-based modeling I'm sure it will give you at
least good pointers to papers where this stuff is examined and
explained in detail.
Ciao,
Stefano
8:03 p.m.
Excerpts from Stefano D'Angelo's message of 2010-09-27 16:35:00 +0200:
2010/9/26 Philipp Überbacher
<hollunder(a)lavabit.com>om>:
I'm still far from any of that, but it's certainly an interesting topic.
I plan to look into all things audio related and try to figure out what
interests me most. There's just too much interesting stuff out there :)
See you around,
Philipp
congratulations to your MSc :)
Thank you. :-)
I'm about to start my BSc :P
I guess your paper might be a good resource for me at some point in the
future :)
If you want to do physics-based modeling I'm sure it will give you at
least good pointers to papers where this stuff is examined and
explained in detail.
Ciao,
Stefano 
26 Sep
26 Sep
10:29 p.m.
New subject: a treasure trove of information on "Physical Audio Signal Processing"
On Sun, Sep 26, 2010 at 04:17:43PM +0200, Stefano D'Angelo wrote:
I recently (last friday) got my MSc graduation with a
thesis on
physics-based (a.k.a. physical) modeling for sound processing and was
just about to post a link on this mailing list.
http://naspro.atheme.org/public/mt_dangelo.pdf
Auguri & congratulations !
The tube amp example is really nice - including the interaction
with the speaker - all of it: electrical, mechanical and acoustic.
This is also the first time I see both the impedance and mobility
models explained in a graduation paper. The fact that the two
exist is the source of *lots* of confusion - you did well to
include this, even if it's just a detail in the whole paper.
A question: how many iterations does the tube model typically
require to converge to the required precision ?
I hope you will continue to develop Permafrost, even without
optimisation it would make a very nice simulation tool.
Ciao,
--
FA
There are three of them, and Alleline.
27 Sep
27 Sep
4:03 p.m.
2010/9/26 <fons(a)kokkinizita.net>et>:
On Sun, Sep 26, 2010 at 04:17:43PM +0200, Stefano
D'Angelo wrote:
Ti ringrazio :-)
I recently (last friday) got my MSc graduation
with a thesis on
physics-based (a.k.a. physical) modeling for sound processing and was
just about to post a link on this mailing list.
http://naspro.atheme.org/public/mt_dangelo.pdf
Auguri & congratulations ! The tube amp example is really nice - including the
interaction
with the speaker - all of it: electrical, mechanical and acoustic.
This is also the first time I see both the impedance and mobility
models explained in a graduation paper. The fact that the two
exist is the source of *lots* of confusion - you did well to
include this, even if it's just a detail in the whole paper.
Well, since almost nobody is into this stuff at my home university I
thought it was a good idea to try to explain most things, even if not
in much detail (the whole thing was mostly prepared during my Erasmus
exchange programme in Helsinki, and there is a whole department
working on this stuff there).
A question: how many iterations does the tube model
typically
require to converge to the required precision ?
I have to admit I don't know, I will check and let you know. ;-)
I hope you will continue to develop Permafrost, even
without
optimisation it would make a very nice simulation tool.
Eh... it depends on what is going to happen now, whether I will find a
job or continue within the university and how much spare time I will
be able to have. Money, damn money!
In the meanwhile I already restarted working on it and there is also a
friend of mine helping me (but he's a total beginner in "serious"
programming).. let's see what happens.
BTW, if somebody can offer me a job or a PhD or anything to keep me
working on these things... :-)
Regards,
Stefano
4:29 p.m.
New subject: a treasure trove of information on "Physical Audio Signal Processing"
On Mon, September 27, 2010 7:03 am, Stefano D'Angelo wrote:
2010/9/26 <fons(a)kokkinizita.net>et>:
You never know with this list. It might help if you say what kind of job
would enable you to do that.
--
Patrick Shirkey
Boost Hardware Ltd.
On Sun, Sep 26, 2010 at 04:17:43PM +0200, Stefano
D'Angelo wrote:
Ti ringrazio :-)
I recently (last friday) got my MSc graduation
with a thesis on
physics-based (a.k.a. physical) modeling for sound processing and was
just about to post a link on this mailing list.
http://naspro.atheme.org/public/mt_dangelo.pdf
Auguri & congratulations ! The tube amp example is really nice - including
the interaction
with the speaker - all of it: electrical, mechanical and acoustic.
This is also the first time I see both the impedance and mobility
models explained in a graduation paper. The fact that the two
exist is the source of *lots* of confusion - you did well to
include this, even if it's just a detail in the whole paper.
Well, since almost nobody is into this stuff at my home university I
thought it was a good idea to try to explain most things, even if not
in much detail (the whole thing was mostly prepared during my Erasmus
exchange programme in Helsinki, and there is a whole department
working on this stuff there).
A question: how many iterations does the tube
model typically
require to converge to the required precision ?
I have to admit I don't know, I will check and let you know. ;-)
I hope you will continue to develop Permafrost,
even without
optimisation it would make a very nice simulation tool.
Eh... it depends on what is going to happen now, whether I will find a
job or continue within the university and how much spare time I will
be able to have. Money, damn money!
In the meanwhile I already restarted working on it and there is also a
friend of mine helping me (but he's a total beginner in "serious"
programming).. let's see what happens.
BTW, if somebody can offer me a job or a PhD or anything to keep me
working on these things... :-)
4:49 p.m.
2010/9/27 Patrick Shirkey <pshirkey(a)boosthardware.com>om>:
On Mon, September 27, 2010 7:03 am, Stefano D'Angelo wrote:
I guess whatever gives me enough money to decently survive working on
sound processing software, possibly on processing/synthesis/analysis
plugins and/or applications or physics-based/white-box systems'
simulation.
Maybe it could also be possible by doing something else that leaves me
enough free time to keep on working on this without starving, or maybe
some academic position (doctoral studies, research, I don't know
what).
It doesn't matter where, as long as it is not a dangerous place
(preferably Europe or Canada/USA).
I'm open to any offer BTW.
Stefano
2010/9/26 <fons(a)kokkinizita.net>et>:
You never know with this list. It might help if you say what kind of job
would enable you to do that. On Sun, Sep 26, 2010 at 04:17:43PM +0200, Stefano
D'Angelo wrote:
Ti ringrazio :-)
I recently (last friday) got my MSc graduation
with a thesis on
physics-based (a.k.a. physical) modeling for sound processing and was
just about to post a link on this mailing list.
http://naspro.atheme.org/public/mt_dangelo.pdf
Auguri & congratulations ! The tube amp example is really nice - including
the interaction
with the speaker - all of it: electrical, mechanical and acoustic.
This is also the first time I see both the impedance and mobility
models explained in a graduation paper. The fact that the two
exist is the source of *lots* of confusion - you did well to
include this, even if it's just a detail in the whole paper.
Well, since almost nobody is into this stuff at my home university I
thought it was a good idea to try to explain most things, even if not
in much detail (the whole thing was mostly prepared during my Erasmus
exchange programme in Helsinki, and there is a whole department
working on this stuff there).
A question: how many iterations does the tube
model typically
require to converge to the required precision ?
I have to admit I don't know, I will check and let you know. ;-)
I hope you will continue to develop Permafrost,
even without
optimisation it would make a very nice simulation tool.
Eh... it depends on what is going to happen now, whether I will find a
job or continue within the university and how much spare time I will
be able to have. Money, damn money!
In the meanwhile I already restarted working on it and there is also a
friend of mine helping me (but he's a total beginner in "serious"
programming).. let's see what happens.
BTW, if somebody can offer me a job or a PhD or anything to keep me
working on these things... :-)
5:16 p.m.
New subject: a treasure trove of information on "Physical Audio Signal Processing"
On Mon, September 27, 2010 7:49 am, Stefano D'Angelo wrote:
2010/9/27 Patrick Shirkey
<pshirkey(a)boosthardware.com>om>:
Well there is a lot of work in Australia at the moment if you feel like a
move.
Feel free to contact me off list if you want more info.
--
Patrick Shirkey
Boost Hardware Ltd.
On Mon, September 27, 2010 7:03 am, Stefano D'Angelo wrote:
I guess whatever gives me enough money to decently survive working on
sound processing software, possibly on processing/synthesis/analysis
plugins and/or applications or physics-based/white-box systems'
simulation.
Maybe it could also be possible by doing something else that leaves me
enough free time to keep on working on this without starving, or maybe
some academic position (doctoral studies, research, I don't know
what).
It doesn't matter where, as long as it is not a dangerous place
(preferably Europe or Canada/USA).
I'm open to any offer BTW.
Stefano
2010/9/26 <fons(a)kokkinizita.net>et>:
You never know with this list. It might help if you say what kind of job
would enable you to do that. On Sun, Sep 26, 2010 at 04:17:43PM +0200, Stefano
D'Angelo wrote:
> I recently (last friday) got my MSc graduation with a thesis on
> physics-based (a.k.a. physical) modeling for sound processing and was
> just about to post a link on this mailing list.
>
> http://naspro.atheme.org/public/mt_dangelo.pdf
Auguri & congratulations !
Ti ringrazio :-)
The tube amp example is really nice - including
the interaction
with the speaker - all of it: electrical, mechanical and acoustic.
This is also the first time I see both the impedance and mobility
models explained in a graduation paper. The fact that the two
exist is the source of *lots* of confusion - you did well to
include this, even if it's just a detail in the whole paper.
Well, since almost nobody is into this stuff at my home university I
thought it was a good idea to try to explain most things, even if not
in much detail (the whole thing was mostly prepared during my Erasmus
exchange programme in Helsinki, and there is a whole department
working on this stuff there).
A question: how many iterations does the tube
model typically
require to converge to the required precision ?
I have to admit I don't know, I will check and let you know. ;-)
I hope you will continue to develop Permafrost,
even without
optimisation it would make a very nice simulation tool.
Eh... it depends on what is going to happen now, whether I will find a
job or continue within the university and how much spare time I will
be able to have. Money, damn money!
In the meanwhile I already restarted working on it and there is also a
friend of mine helping me (but he's a total beginner in "serious"
programming).. let's see what happens.
BTW, if somebody can offer me a job or a PhD or anything to keep me
working on these things... :-)
30 Sep
30 Sep
5:40 a.m.
Well there is a lot of work in Australia at the moment if you feel like a
move.
Feel free to contact me off list if you want more info.
--
Patrick Shirkey
Boost Hardware Ltd.
In Australia? Wow. New things amaze me everyday. :)
Some really old and outdated and poorly implemented code is available
as ladspa plugins for 2/3d waveguide meshes and radial wave guides
for physical synthesis. It was written before I had much coding
experience and shows it though! :)
Loki
5163
days inactive
5170
days old
linux-audio-dev@lists.linuxaudio.org
12 comments
8 participants
participants (8)
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fons＠kokkinizita.net -
Loki Davison -
Niels Mayer -
Patrick Shirkey -
Philipp Überbacher -
Renato -
Stefano D'Angelo -
Stephen Sinclair