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Controlling a partial

Date1998-01-03 20:53
FromDavid Schuyeteneer
SubjectControlling a partial
I generate a pure sinewave in table 1 with 1 harmonic...

How can I let Csound control ONLY the harmonic, (i.e. adding vibrato) so
that the base frequency
is left totally as it was at ftable inittime ?

perhaps by adding a kvibrato to parameter 5 of a GEN10 table   ?      


like this :

F1 0 256 10 1 1+kvibrato          (kvibrato is a normal oscil) 

,so that only the second frequency of F1 wil be vibrated ?  


david.

 



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Steven Curtin wrote:
> 
> >pete moss wrote:
> >> here is a question about making a stereo signal in an orc.
> >> most of you seem to like doing something like this:
> >> outs  asig*ix, asig*(1-ix)
> >>(...)
> >> on p318 of dodge v2, he recommends doing a similar operation
> >> outs asig*sqrt(ix), asig*sqrt(1-ix)
> >> is one better than the other?  (...)

> Don't forget the quarter-sine-wave panning technique
> 
> Generate the sine table in your score file:
> f1 0 1025 9 .25 1 0  ;The first quadrant of a sine for panning
> 
> In the orc file you would add:
> kpanl    tablei kbalance, 1, 1
> kpanr    tablei 1.0 - kbalance, 1, 1
> outs     asrc * kenv * kpanl ,asrc * kenv * kpanr
> 

This turned out to be most efficient on my system. Since I never
saw it in any of the public orc's, here it is:

iright	=	sqrt(p4)
ileft	=	sqrt(1-p4)
	(...)
	outs	asig*iright, asig*ileft

	Happy GNU year,
			kd



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From: David Schuyeteneer 
To: csound mailing list 
Subject: How to midi-sync Csound ?
Date: Fri, 2 Jan 1998 14:56:49 +0100
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I want to run Csound realtime in sync with another midi program (rebirth)..
Can someone explain step by step what to do ?

thanks,

David.





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Hi

Thanks for interest.

I've made some modifications so that it may more easily run on Win95,
fixed some of the numerous bugs and some cosmetic things.

There are .zip and .tar.gz -versions at http://www.sci.fi/~mjkoskin

thanx

-matti

mjkoskin@sci.fi



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From: David Schuyeteneer 
To: csound mailing list 
Subject: C code in Csound
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Sometimes I see plain C code for use with Csound, how
does one let attach that code to Csound ??  Can Csound understand plain
C/C++ perhaps ?


David.




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From: J P Fitch 
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Due to a tape failing to read i just resent a bunch of old mail.  Sorry.
Real mail will follow!
=John



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From: jpff@maths.bath.ac.uk
Subject:  Re: EQ Paper, arctan Question, filter2 Comment
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Message written at 23 Dec 1997 10:56:55 +0000
--- Copy of mail to hljmm@werewolf.net ---
In-reply-to: <3.0.3.16.19971212180049.52578822@werewolf.net> (message from
	Hans Mikelson on Fri, 12 Dec 1997 18:00:49)
References:  <3.0.3.16.19971212180049.52578822@werewolf.net>

Adding an arctangent function would not be too hard.  I will look at
it.
==John



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From: jpff@maths.bath.ac.uk
Subject:  Yet another version...
To: csound@maths.ex.ac.uk
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Message written at 1 Jan 1998 22:05:05 +0000

I have copied a new version of the beta for Mac/68K, Mac/881 and
PowerMac to ftp.maths.bath.ac.uk:pub/dream/platforms/mac/ as
         Csound_68k_beta.Hqx
         Csound_881_beta.Hqx
         PCCsound_beta.Hqx

Also the same version for Windows is about to be on
     ftp.maths.bath.ac.uk:pub/dream/platforms/pc/cswin_beta.zip

I hope to get an Atari Beta soon.  Also an SGI version?

Main changes are more bug fixes, and some adjustments to the physical
model instruments.  Also teh Windows GUI has been improved (? or
changed anyway).  Allows graph browsing, access to score/orchestra
editing etc.

==John





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Date: Fri, 02 Jan 1998 14:30:31
To: csound@maths.ex.ac.uk
From: Hans Mikelson 
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Hi all,

My apologies to Richard Dobson and the list for mistakenly attributing the
nlfilt opcode solely to John Fitch.  My understanding is that it was
originally Richard's idea and the Csound opcode was implemented by both
Richard and John.

Happy New Year,
Hans Mikelson




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From: jpff@maths.bath.ac.uk
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Message written at 2 Jan 1998 22:08:37 +0000

I must apologise about this.

I have just had another look for these opcodes and I find that they
were lurking in a different file.  In fact the functiosn have been in
Csound sources and binaries for at least 6 months.  What was missing
was the lines in entry.

I have just added them; will be in my next version.

As this is all getting rather silly, I propose that 3.47 gets released
next week.

==John



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From: Matti Koskinen 
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Hi

First I must apologize for the inconvinience of those who have
downloaded the script for use in Win95. Last night I finally got
tcl/tk 7.6 work in Win95 and could test the code on this platform
and the result was a complete flop. Due to some differences between
*nix and Win95 menus didn't work, they were placed not at the top
but in the middle etc. Then there were bugs that showed themselves
only running on Win95. Now these are fixed and Win95-version works,
so if you want to try and see more than errors, you'll find it
http://www.sci.fi/~mjkoskin

Sorry again

-matti

mjkoskin@sci.fi



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Date: Sun, 4 Jan 1998 10:08:38 -0800 (PST)
From: Mike Berry 
To: David Schuyeteneer 
Cc: csound mailing list 
Subject: Re: Controlling a partial
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On Sat, 3 Jan 1998, David Schuyeteneer wrote:

> I generate a pure sinewave in table 1 with 1 harmonic...
> 
> How can I let Csound control ONLY the harmonic, (i.e. adding vibrato) so
> that the base frequency
> is left totally as it was at ftable inittime ?
> 
> perhaps by adding a kvibrato to parameter 5 of a GEN10 table   ?      
> 
> 
> like this :
> 
> F1 0 256 10 1 1+kvibrato          (kvibrato is a normal oscil) 
> 
> ,so that only the second frequency of F1 wil be vibrated ?  

	Any table you generate is fixed at the time you generate it, so it
will not vary in the way you are requesting.  Instead, make a sine table
with no higher harmonics.  Then use two oscili opcodes, one at the base
frequency and one at twice the base (1st partial), and then mix the two.
You use the same table for both.  You can then independently control the
frequency or amplitude of each.

Mike Berry
mikeb@nmol.com





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Date: Sun, 4 Jan 1998 22:12:10 -0500 (EST)
From: Roy Stephane 
Subject: Re: your mail
To: Paul Winkler 
Cc: csound@maths.ex.ac.uk
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>Paul Winkler wrote: 
> Dear folks,
> 
> I asked a while ago about documentation for Patchwork, or more 
> specifically Xpatchwork. I still haven't found any, so let me ask 
> this....

The best way is to subscribe to the IRCAM forum. It's about 2000FF per year 
but 
you have access to plently of documentation on Patchwork and its many 
libraries as well as many very usefull applications (audiosculpt for 
exemple).  You get all on CD-Rom (3 per year)
and you can also pick the updated documentation and software on site.

Stephane Roy, composer
ST Louis, Missouri



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From: Paul Winkler 
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Dear folks,

I asked a while ago about documentation for Patchwork, or more 
specifically Xpatchwork. I still haven't found any, so let me ask 
this....

Does anyone know where I might find any manuals or even a simple readme 
file? or a windows help file? html document? ANYTHING that explains how 
patchwork is supposed to work?

Dave Phillips suggested
ftp://indigo.pac.utexas.edu/pub/windows/Patchwork
...but that site appears to have become non-existent.

Alternatively, can anyone verify that the linux version does or does not 
work on their system? I can get it to start but I can't move the little 
icons around (though I am not sure how I am supposed to be doing it).

Thanks,

PW



==============================================================
Paul Winkler --- music & sound --- zarmzarm at hotmail dot com
                       a  member  of
ARMS --- an ongoing pop music experiment  --- our first album,
URBAN SUNDIAL  is now available.....on CD, vinyl, and cassette 
from Label 12 13.........contact:     sonic113 at juno dot com

Also -- improvised & electronic music releases are coming real 
soon, dirt cheap from plan B cassette works and label 12 13...
==============================================================


______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com



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Date: Mon, 05 Jan 1998 11:01:46 +0100
From: Gabriel Maldonado 
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CC: Richard Dobson , J P Fitch 
Subject: Re: nlfilt by Richard Dobson and John Fitch
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Please, where can I get informations about 'nlfilt' theory more detailed
than in csound manual? Is it possible to get them from the Internet?

(
the manual says 'nlfilt' implements the filter Y{n} = a Y{n-1} + b
Y{n-2} + d Y^2{n-L} + X{n} - C described in Dobson and Fitch (ICMC'96).

)

Thanks

--
Gabriel Maldonado

mailto:g.maldonado@agora.stm.it
http://www.agora.stm.it/G.Maldonado/home2.htm
http://www.geocities.com/SiliconValley/Way/7041/home2.htm



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From: David Schuyeteneer 
To: csound mailing list 
Subject: GEN01 problem !!
Date: Mon, 5 Jan 1998 12:20:02 +0100
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Dit is een meerdelig bericht in MIME-indeling.

------=_NextPart_000_01BD19D4.3F3C00A0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit

In order to create a granular texture, derived from an external sample (aif
format), I fill
an ftable with the sampledata using GEN01....now when compiling the
orc&sco, Csound sayes that
there are "INSUFFICIENT ARGS" in F3 (the table for the sampledata)...Now, I
checked over and
over, but I really can't find what's wrong ! Everything seems to be right.
Even the tabelsize is set to
a power of 2  (2**18, 262144) to avoid the GRAIN generator struggling with
odd tablesizes.....

Anyway, the replay of the result wav is just silence.....

The sample "sample.aif"  must be recreated....just record some talk or
so...the original is me
talking in the microphone saying "ABC  123"...


David.



------=_NextPart_000_01BD19D4.3F3C00A0
Content-Type: application/octet-stream; name="test.orc"
Content-Transfer-Encoding: quoted-printable
Content-Description: test.orc (ORC -bestand)
Content-Disposition: attachment; filename="test.orc"

sr =3D 44100      ;samplerate
kr =3D 441        ;control samplerate
ksmps =3D 100     ;sr / kr
nchnls =3D 1      ;1=3Dmono, 2=3Dstereo



;                      Filtering Noise

instr 4

kvib randi 1000,6

asignal rand 10
afilter reson asignal,kvib,p6    ; cutoff kvib, reso P6

out afilter

endin


;                     Filtering a Sample

instr 5

kvib randi 600,6

asignal soundin "sample.wav"
afilter reson asignal,kvib,p6    ; cutoff kvib, reso P6

afinal balance afilter,asignal   ; afilter volume :=3D asignal volume

out afinal

endin


;                      Granular Textures=20

instr 6

;grain           xamp, =
xpitch,xdens,kampoff,kpitchoff,kgdur,igfn,iwfn,imgdur

atexture grain   10000,300,   p5,   0,      0,        p6,    3,   4,   5
out atexture

endin




------=_NextPart_000_01BD19D4.3F3C00A0
Content-Type: application/octet-stream; name="test.sco"
Content-Transfer-Encoding: 7bit
Content-Description: test.sco (SCO -bestand)
Content-Disposition: attachment; filename="test.sco"

;  P1        P2         P3       P4     P5
;  tablenum  starttime  size     GEN    strenght
;f  1         0          256      10     1   0 0 0 0 1      
;f  2         0          256      10     1         

;           F3:= SAMPLEDATA (GEN 01)
;  tablenum  start      size     GEN   inputfile     skip   format
f  3         0          262144     1    "sample.aif"   0       0

;           F4:=  GRAIN AMPLITUDE ENVELOPE  (GEN 20)
;  tablenum  start      size     GEN   window  
;                                      (5= 4-term Blackmann-Harris)
f  4         0          1024     20     5



;  instrnum  starttime  duration    amp    freq  resonance
;  P1        P2         P3          P4     P5    P6

;i  4         0          4           0      880   200
;i  4         +          4           0      880   100
;i  4         +          4           0      880   30
;i  4         +          4           0      880   10

;i  5         0          4           0      880   200
;i  5         +          4           0      880   100
;i  5         +          4           0      880   30
;i  5         +          4           0      880   10
;i  5         +          4           0      880   4
 
;               GRANULAR TEXTURES           graindensity  grainlength
i   6         0          2          0       50           .4
i   6         +          2          0       <             <
i   6         +          2          0       1000          1


e


------=_NextPart_000_01BD19D4.3F3C00A0--




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That=B4s a great news!, we=B4re all waiting for 3.47. Tablekt opcodes are
really necessary for my projects!
And please don=B4t forget a more complete documentation of the new
opcodes, please!


jpff@maths.bath.ac.uk wrote:

> I have just had another look for these opcodes and I find that they
> were lurking in a different file.  In fact the functiosn have been in
> Csound sources and binaries for at least 6 months.  What was missing
> was the lines in entry.
>
> I have just added them; will be in my next version.
>
> As this is all getting rather silly, I propose that 3.47 gets released
>
> next week.
>
> =3D=3DJohn




Date1998-01-04 18:08
FromMike Berry
SubjectRe: Controlling a partial
On Sat, 3 Jan 1998, David Schuyeteneer wrote:

> I generate a pure sinewave in table 1 with 1 harmonic...
> 
> How can I let Csound control ONLY the harmonic, (i.e. adding vibrato) so
> that the base frequency
> is left totally as it was at ftable inittime ?
> 
> perhaps by adding a kvibrato to parameter 5 of a GEN10 table   ?      
> 
> 
> like this :
> 
> F1 0 256 10 1 1+kvibrato          (kvibrato is a normal oscil) 
> 
> ,so that only the second frequency of F1 wil be vibrated ?  

	Any table you generate is fixed at the time you generate it, so it
will not vary in the way you are requesting.  Instead, make a sine table
with no higher harmonics.  Then use two oscili opcodes, one at the base
frequency and one at twice the base (1st partial), and then mix the two.
You use the same table for both.  You can then independently control the
frequency or amplitude of each.

Mike Berry
mikeb@nmol.com