| I seem to vaguely recall someone on this list once created a program
that allowed you to use .bmp files to create a waveform and export it to
Csound. Can someone point me to where this program is now?
Also, is there a program that allows editing of sounds visually in three
dimensions (amp, frequency and time)? I've been thinking of writing a
perl script that would allow you to enter the necessary data and would
in turn create a .orc file and a data file that could be read by a
graphing program (like WPlot, for instance), but would much prefer to
find someone else had already done such a thing. ;)
--
Best regards,
Robert Tucker
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Date: 20 Nov 98 10:14:26 EST
From: "Matt J. Ingalls"
Subject: Re: hello, and questions (forwarded from Matt J. Ingalls)
To: csound@maths.ex.ac.uk
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--- You wrote:
what level of realtime performance has been accomplished on the
newer g3 macs? and is there a big difference in performance from the
604e-s to the g3 processors?
--- end of quote ---
1) if you can do what you want to do in some other mac app than csound,
then i would go with that.
2) Mac Csound currently needs some major
revisions to take advantage of current processor improvements.
3) if i had a grant/funding i would do it. (otherwise i will have to get a
real job as dave and mike have)
4) no such thing as realtime on a computer
5) we will always want performance to go beyond the current realtime
benchmarks.
6) matt
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Date: 20 Nov 98 10:50:44 EST
From: "Matt J. Ingalls"
Subject: mac csound rt..Re: hello, and questions
To: g.maldonado@agora.stm.it
Cc: csound@maths.ex.ac.uk
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--- Gabriel Maldonado wrote:
I'm curious about realtime performance of Csound on Mac.
Whith my Pentium II 400 I can get over 200 oscili + envelopes
--- end of quote ---
again, its not the machine, the processor, or the OS --
its the mac port itself
the (mac specific) real-time code needs to be rewritten (buffer fill at
interrupt) --
BeOS might be the better option...
matt
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Date: Fri, 20 Nov 1998 10:10:49 -0600
To: csound@maths.ex.ac.uk
From: =cw4t7abs
Subject: Re: Visual waveform creator/editor?
Sender: owner-csound-outgoing@maths.ex.ac.uk
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>I seem to vaguely recall someone on this list once created a program
>that allowed you to use .bmp files to create a waveform and export it to
>Csound. Can someone point me to where this program is now?
>
>Also, is there a program that allows editing of sounds visually in three
>dimensions (amp, frequency and time)? I've been thinking of writing a
>perl script that would allow you to enter the necessary data and would
>in turn create a .orc file and a data file that could be read by a
>graphing program (like WPlot, for instance), but would much prefer to
>find someone else had already done such a thing. ;)
4 dze mak + !(!n_purrl) )
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Date: Fri, 20 Nov 1998 10:11:51 -0600
To: csound@maths.ex.ac.uk
From: =cw4t7abs
Subject: Re: hello, and questions (forwarded from Matt J. Ingalls)
Sender: owner-csound-outgoing@maths.ex.ac.uk
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>2) Mac Csound currently needs some major
> revisions to take advantage of current processor improvements.
>
>3) if i had a grant/funding i would do it. (otherwise i will have to get a
> real job as dave and mike have)
trnlzt!on : amb!gu!t!=allure
>4) no such thing as realtime on a computer
zmk. t!me = !lluj!on.
real t!me = kap!tal!zt!k produkt
= r!zn akadem!k kode = tzo.v.glu+e
>5) we will always want performance to go beyond the current realtime
> benchmarks.
trnlzt!on : amb!gu!t!=allure
>6) matt
tamm tamm tamm schatatam tam
zbzb
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Subject: Re: mac csound rt..Re: hello, and questions
To: "Matt J. Ingalls"
Date: Fri, 20 Nov 1998 17:30:59 MET
Cc: g.maldonado@agora.stm.it, csound@maths.ex.ac.uk
In-Reply-To: <15848406@donner.Dartmouth.EDU>; from "Matt J. Ingalls" at Nov 20, 98 10:50 am
Organization: Hewlett-Packard GmbH
From: Jens Kilian
Reply-To: Jens_Kilian@bbn.hp.com
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> again, its not the machine, the processor, or the OS --
> its the mac port itself
> the (mac specific) real-time code needs to be rewritten (buffer fill at
> interrupt) --
> BeOS might be the better option...
> matt
Ahem...
Unfortunately, the upcoming BeOS revision R4 will completely change the way
audio is handled, and the PPC version currently has severe noise problems.
My own BeOS port is not very good at realtime IO, but I hope to change that.
Note that porting Csound to BeOS is hell; all the Mac-specific code is in
"#ifdef __MWERKS__" sections, and Metrowerks C/C++ happens to be the standard
compiler in PPC BeOS...
Bye,
Jens.
--
mailto:jjk@acm.org phone:+49-7031-14-7698 (HP TELNET 778-7698)
http://www.bawue.de/~jjk/ fax:+49-7031-14-7351
PGP: 06 04 1C 35 7B DC 1F 26 As the air to a bird, or the sea to a fish,
0x555DA8B5 BB A2 F0 66 77 75 E1 08 so is contempt to the contemptible. [Blake]
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Date: 20 Nov 98 11:31:11 EST
From: "Matt J. Ingalls"
Subject: rand outputs
To: vjs@ndirect.co.uk, csound@maths.ex.ac.uk
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i just looked at the output of randi in ..
the output is from 0-2*xamp
did new improvements forget to subtract xamp on output?
7)matt
---------- Forwarded message ----------
From: vjs
Reply-To: csound-dev@eartha.mills.edu
To: ingalls@mills.edu
Subject: re: randi bug (was sr=1 orcs and scroll bug)
you wrote
>have you tried unirand?
unless i misunderstand, unirand has neither band limitation nor
interpolation, also no negative numbers
my point -
in 3.492b, there is a bug in randi and randh - they output values greater
than the input argument xamp
a test
;orc
sr = 44100
kr = 441
ksmps = 100
nchnls = 1
instr 1
a1 oscili 20000, 5, 1
a2 randi a1, 1000, 0.5
out a2
endin
;sco
f1 0 4097 10 1
i1 0 5
e
similarly for randh
i do not have any other platforms to hand so unable to tell whether this is
just PPC or to do with canonical code
vjs
--- end of quote ---
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From: Geoff Cluett
To: Robert Tucker , csound@maths.ex.ac.uk
Subject: RE: Visual waveform creator/editor?
Date: Fri, 20 Nov 1998 16:40:29 -0000
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Hi to everyone,
this is my first post - I haven't actually used CSound at all yet, although
I'm really looking forward to finding the time, as the posts I've been
reading sound like it is one hell of a program. My main interest is in
using my PC to do multitrack recording in my small but very effective home
studio. I got to here through trying to find source code for reading .wav
files, as I am trying to help a friend of mine write an audio application as
part of his two year Masters degree in Music Technology. (I have also
pointed him and the University to these sites). Part of what he wants do do
is to allow the user to split a wave file into frequency components and
process these using DirectX plugins. I have just purchased a rather
excellent book "Developers Guide to Sound" by Tim Kientzle, which is
published by Addison-Wesley. This contains the basics on sound, including
human perception and digital storage. It delves into compression, basic
audio processing and sound synthesis. It also contains the full source code
to everything he covers - one of those subjects being the Fourier Transform,
which as you probably know turns an audio wave from Time and Amplitude into
Frequency, Time and Amplitude. So, I had the idea that to display this data
would require a 3D display or a 2D bitmap showing greyscales as the
Amplitude (as a textured bump map would). This then got me thinking that
you could easily use this as a 'painting' board and when the inverse Fourier
Transform is applied to that 'painted' on data, a new sound is created. I
don't know how you would then convert this into a score file, but I expect
everyone else does.
I don't know whether that helps, but I am pretty new to this side of audio
and coding in general. I could post the code if anyone was interested.
It's licensing only requires an acknowledgement of the author.
Does anyone know anything regarding development of a framework application
to utilise DirectX audio plugins. Apparently I need to use a 'Graph Filter
Manager' (?). I thought this was in the DirectX SDK, but I can't find
anything relating to this. If anyone has addresses of newsgroups, websites
or any code themselves this would be greatly appreciated. I know this isn't
a CSound issue, but I'm having a real hard time finding the information I
need.
Regards,
Geoff Cluett
> -----Original Message-----
> From: Robert Tucker [SMTP:rtucker@arches.uga.edu]
> Sent: Friday, November 20, 1998 2:53 PM
> To: csound@maths.ex.ac.uk
> Subject: Visual waveform creator/editor?
>
> I seem to vaguely recall someone on this list once created a program
> that allowed you to use .bmp files to create a waveform and export it to
> Csound. Can someone point me to where this program is now?
>
> Also, is there a program that allows editing of sounds visually in three
> dimensions (amp, frequency and time)? I've been thinking of writing a
> perl script that would allow you to enter the necessary data and would
> in turn create a .orc file and a data file that could be read by a
> graphing program (like WPlot, for instance), but would much prefer to
> find someone else had already done such a thing. ;)
>
> --
> Best regards,
> Robert Tucker
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Date: Fri, 20 Nov 1998 11:30:04 -0600
To: csound@maths.ex.ac.uk
From: =cw4t7abs
Subject: RE: Visual waveform creator/editor?
Sender: owner-csound-outgoing@maths.ex.ac.uk
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>So, I had the idea that to display this data
>would require a 3D display or a 2D bitmap showing greyscales as the
>Amplitude (as a textured bump map would). This then got me thinking that
>you could easily use this as a 'painting' board and when the inverse Fourier
>Transform is applied to that 'painted' on data, a new sound is created. I
>don't know how you would then convert this into a score file,
phonogramme
www.grame.fr
>but I expect
>everyone else does.
convert this into a score file
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From: Richard Dobson
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To: "Matt J. Ingalls"
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Subject: Re: mac csound rt..Re: hello, and questions
References: <15848406@donner.Dartmouth.EDU>
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Aside from the fact that BeOS is widely acknowledged as ideal for audio
software, I have recently heard that Steinberg are preparing a port of their
'Nuendo' application (introduced for SG machines) not only to Windows NT, but
also to BeOS, and that Emagic are going to port their whole product line to
BeOS. Clearly this OS is hitting critical mass, and must surely be a necessary
new platform for Csound. Is anyone on this task yet?
Richard Dobson
"Matt J. Ingalls" wrote:
>
> --- Gabriel Maldonado wrote:
> I'm curious about realtime performance of Csound on Mac.
> Whith my Pentium II 400 I can get over 200 oscili + envelopes
> --- end of quote ---
>
> again, its not the machine, the processor, or the OS --
> its the mac port itself
> the (mac specific) real-time code needs to be rewritten (buffer fill at
> interrupt) --
> BeOS might be the better option...
> matt
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From: Richard Dobson
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To: Geoff Cluett , csound@maths.ex.ac.uk
Subject: Re: Visual waveform creator/editor?
References: <81DCF20B6EC2D1118BEC00C0F02454670446CC@cads5.cads.co.uk>
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You need to get the DirectShow SDK, which is part of DirectX Media (and it all
used to be called ActiveMovie...). The Filter Graph Manager is indeeed the
core framework for all DirectShow (not just audio), though you only need to
worry about that if you are writing a client application. you can write
plugins without worrying too much about the FGM. The Microsoft SDK comes with
an test program 'graphedt' which alloes you to construct arbitrary filter
graphs, with which to test filters. In addition to the Microsoft
documentation (all of which presumes a high level of familiarity with both C++
and COM), you might like to look at the Sonic Foundry website (publishers of
SoundForge) - www.sfoundry.com - they provide an independent 'plugin SDK',
which is uniformly excellent.
Note that programming DirectShow is a fairly formidable task! However, the
Sfoundy SDK does make it just about as painless as it can be. For the
application end (the graph manager) you will be dependent on the Microsoft
documentation.
Richard Dobson
Geoff Cluett wrote:
>
[snip]
> Does anyone know anything regarding development of a framework application
> to utilise DirectX audio plugins. Apparently I need to use a 'Graph Filter
> Manager' (?). I thought this was in the DirectX SDK, but I can't find
> anything relating to this. If anyone has addresses of newsgroups, websites
> or any code themselves this would be greatly appreciated. I know this isn't
> a CSound issue, but I'm having a real hard time finding the information I
> need.
> Regards,
> Geoff Cluett
>
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From: Michael Gogins
To: Geoff Cluett , Robert Tucker ,
csound@maths.ex.ac.uk
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Subject: Re: Visual waveform creator/editor?
Date: Fri, 20 Nov 1998 19:14:20 -0500
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To begin with, programs exist that solve this problem both in commercial
software (MetaSynth on the Macintosh) and in freeware or academic computer
music software. My package Silence version 2.1 has a program GraphMus that
does this. My newer version of Silence also does this, but is still in beta
version. Other authors have created variations on this theme.
The idea simply applying an inverse FFT to the pixel data, or some
transformation thereof, works, but is too simple and does not produce the
most musical output. It usually sounds better to use additive synthesis
(each raster in the picture becomes one oscillator, and the brightness and
color control the amplitude and perhaps the phase of the oscillator). Partly
this works better because when when we look at a picture we intuitively map
it to pitch, which is the log of the frequencies used by the FFT. Partly
this works better because people don't seem to intuitively grasp what
complex phase relationships between partials do to the sound (maybe some DSP
engineers or acousticians or very experienced computer musicians can grasp
them - I understand the math, but I can't grasp them well enough to hear
them). You get ringing, smearing, unexpected clicks, and the like.
The additive synthesis approach can be implemented easily enough from
scratch, but it is even easier to implement using Csound's adsyn opcode, in
which case the programmer need only translate the bitmap to adsyn data
tracks.
-----Original Message-----
From: Geoff Cluett
To: Robert Tucker ; csound@maths.ex.ac.uk
Date: Friday, November 20, 1998 11:54 AM
Subject: RE: Visual waveform creator/editor?
>Hi to everyone,
> this is my first post - I haven't actually used CSound at all yet,
although
>I'm really looking forward to finding the time, as the posts I've been
>reading sound like it is one hell of a program. My main interest is in
>using my PC to do multitrack recording in my small but very effective home
>studio. I got to here through trying to find source code for reading .wav
>files, as I am trying to help a friend of mine write an audio application
as
>part of his two year Masters degree in Music Technology. (I have also
>pointed him and the University to these sites). Part of what he wants do
do
>is to allow the user to split a wave file into frequency components and
>process these using DirectX plugins. I have just purchased a rather
>excellent book "Developers Guide to Sound" by Tim Kientzle, which is
>published by Addison-Wesley. This contains the basics on sound, including
>human perception and digital storage. It delves into compression, basic
>audio processing and sound synthesis. It also contains the full source
code
>to everything he covers - one of those subjects being the Fourier
Transform,
>which as you probably know turns an audio wave from Time and Amplitude into
>Frequency, Time and Amplitude. So, I had the idea that to display this
data
>would require a 3D display or a 2D bitmap showing greyscales as the
>Amplitude (as a textured bump map would). This then got me thinking that
>you could easily use this as a 'painting' board and when the inverse
Fourier
>Transform is applied to that 'painted' on data, a new sound is created. I
>don't know how you would then convert this into a score file, but I expect
>everyone else does.
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Date: Fri, 20 Nov 1998 18:38:35 -0600
To: csound@maths.ex.ac.uk
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From: =cw4t7abs
Subject: Re: Visual waveform creator/editor?
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>To begin with, programs exist that solve this problem both in commercial
>software (MetaSynth on the Macintosh) and in freeware or academic computer
>music software.
metas!nth suger.
phonograme
http://www.grame.fr
= grat!z + perfa
>My package Silence version 2.1 has a program GraphMus that
>does this. My
m!++
\\ humanzsukc++ . !t = u.amuz!ng
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From: =cw4t7abs
Subject: Re: Visual waveform creator/editor?
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+ !f 1 rekalsz !t alred! poztd on csound-l
numerouz monthz pr!or
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From: =cw4t7abs
Subject: Re: Visual waveform creator/editor?
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http://www.grame.fr/MidiShare/fr/Using/MSSoftFrames.html
- akadem!a lakx non.dze lesz.abr !n d!sz prtklr kasz lakx
lesz tzo dzen mattr ment!ond
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Date: Fri, 20 Nov 1998 19:47:58 +0000
From: Charles Baker
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Subject: Re: Visual waveform creator/editor?
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You can use "cgraph" objects in Cecilia to edit f tables...which, of
cource can be either control functions *or*
waveforms. Many tools in the Cecilia graph editing window are intended
for visual waveform editing.
CharlieB
--
Charles Baker - baker@charlieb.com - http://www.charlieb.com
6.44 It is not *how* things are in the world
that is mystical, but *that* it exists.
L. Wittgenstein Tractatus-Logico-Philosophicus
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Date: Fri, 20 Nov 1998 19:17:37 -0600
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MMDF-Warning: Parse error in original version of preceding line at UK.AC.Bath.maths.omphalos
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oopz.
http://shoko.calarts.edu/~glmrboy
zku!gg! = real!tme + ultra zupr 4 beoz
+ d!sz = ultra zupr auss!
http://shoko.calarts.edu/~glmrboy/api.html
9.8
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Date: Fri, 20 Nov 1998 19:32:04 -0600
To: csound@maths.ex.ac.uk
MMDF-Warning: Parse error in original version of preceding line at UK.AC.Bath.maths.omphalos
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--
Charles Baker - baker@charlieb.com - http://www.charlieb.com
6.44 It is not *how* things are in the world
that is mystical, but *that* it exists.
L. Wittgenstein Tractatus-Logico-Philosophicus
6.45
2 v!ew dze velt sub spec!e aetern! = 2 v!ew !t az 1 whole - 1 l!m!td whole.
feel!ng dze velt az 1 l!m!td whole - !t = d!sz dzat = m!zt!kl
6.52 [4 1 przn !n prtklr]
vn we = feel dzat all poszbl sc!ent!f!k kuezt!onz hav b!n anzuerd
dze prblmz ov l!f(e) rema!n kompletel! untouchd.
ov korsz dzere = dzen 0 kuezt!onz left + d!sz !tzelf = dze antvort
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