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Re: EQ Paper, arctan Question, filter2 Comment

Date1997-12-24 14:58
FromJosep M* Comajuncosas
SubjectRe: EQ Paper, arctan Question, filter2 Comment
Josep M* Comajuncosas wrote:

> You can always do something like e(x)-e(-x)/2... (I don“t remember the
>
> exact relationship). Some other stuff is more important, like
> n-dimensional variables.

   Mmmm what a shame... this is the hiperbolic sinus hug? Mmmm... too
fast reading the mail...




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Date: Wed, 24 Dec 1997 11:28:12 +0100
From: Gabriel Maldonado 
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jpff@maths.bath.ac.uk wrote:

> As some of the new opcodes need some impulses and pluck excitements, I
>
> have created a new directory pub/dream/documentation/sounds/modelling
> in which I have placed some useful waves.

  What are the new opcodes which need impulses and pluck excitements?

(BtW I'm developing some physical-algorithms opcodes that allow k-rate
lower than a-rate, to use them in real-time).

merry Christmas
--
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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Date: Wed, 24 Dec 1997 11:28:12 +0100
From: Gabriel Maldonado 
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jpff@maths.bath.ac.uk wrote:

> As some of the new opcodes need some impulses and pluck excitements, I
>
> have created a new directory pub/dream/documentation/sounds/modelling
> in which I have placed some useful waves.

  What are the new opcodes which need impulses and pluck excitements?

(BtW I'm developing some physical-algorithms opcodes that allow k-rate
lower than a-rate, to use them in real-time).

merry Christmas
--
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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Date:     Wed, 24 Dec 97 18:10:06 GMT
From: jpff@maths.bath.ac.uk
Subject:  Re: Ihold/Turnoff related msg.
To: csound@maths.ex.ac.uk
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Message written at 24 Dec 1997 09:45:03 +0000
In-reply-to: <1.5.4.32.19970813050204.0071ce18@chasque.apc.org> (message from
	Pablo Sotuyo on Wed, 13 Aug 1997 02:02:04 -0300)
References:  <1.5.4.32.19970813050204.0071ce18@chasque.apc.org>

Can anyone confirm this?  I cannot see why it should be true looking
at the sources.  I am reviewing all outstanding problems reported.

=John

>>>>> "Pablo" = Pablo Sotuyo  writes:

 Pablo>    Knowing there will be a 3.47 version of Csound (Thanks to
 Pablo> all who were concerned ;) ) I would like it to get the ihold
 Pablo> revised/modified to let the instrument stay poliphonic and not becomes
 Pablo> monophonic as it behaves in 3.46 version of Csound (win) when you use
 Pablo> it. Or at least include this behaviour in the next Csound Manual.
 Pablo>                 Thank you all in advance.
 Pablo>                 Pablo.






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Date: Tue, 23 Dec 1997 11:05:54 +0100
From: Erasmus Zipfel 
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To: Hans Mikelson 
CC: jpff@maths.bath.ac.uk, csound@noether.ex.AC.UK
Subject: Re: cps2pch Opcode Unequal Temperament Fix
References: <3.0.3.16.19971211135025.2de7e244@werewolf.net>
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Hans Mikelson wrote:
>> It also does not wrap around at 12;

jpff@maths.bath.ac.uk wrote:
> Indeed, nor should it.  What has 12 to do with tuning(!?)

Hans Mikelson wrote:

> It makes it a bit of a chore to code a wrap around at least the way I did
> it.  Perhaps there is an easier way?

You can write a second table with your division pattern:

f31 0 4 -2 	1  1.259921  1.587401
f32 0 32 -2	5. 5.01 5.02 
		6. 6.01 6.02
		7. 7.01 7.02
		8. 8.01 8.02
		9. 9.01 9.02
		10. 10.01 10.02
		11. 11.01 11.02
		12. 12.01 12.02

And now You can call cps2pch with integers:

index	table	p4,32
icps	cps2pch index,-31

print	icps

E.Zipfel


Date:     Wed, 24 Dec 97 18:19:34 GMT
From:     J P Fitch 
To:       Gabriel Maldonado 
cc:       jpff@maths.bath.ac.uk, 
          Csound Mailing List 
Subject:  Re:  Modeling opcodes

The release notes give the simple use, and I have a simple test
orchestra/sco that I use.  If anyone wants them I can send; if
enough want them I will place on teh server somewhere.

....but it is holiday time and so time to compose!
Best wishes to all csound users for whatever you celebrate.
=John


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Date:     Wed, 24 Dec 97 18:19:34 GMT
From: J P Fitch 
To: Gabriel Maldonado 
Cc: jpff@maths.bath.ac.uk, Csound Mailing List 
Subject:  Re:  Modeling opcodes
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The release notes give the simple use, and I have a simple test
orchestra/sco that I use.  If anyone wants them I can send; if
enough want them I will place on teh server somewhere.

....but it is holiday time and so time to compose!
Best wishes to all csound users for whatever you celebrate.
=John



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From: Richard Dobson 
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Er, unless I have very badly misunderstood something, I thought ihold is
~meant~ to make the instrument monophonic - to create ties, etc;  once
an instrument has been put on hold (via ihold or negative p3), a new
i-statement for that instrument  takes it over ('takes over the data
space'). If this statement has a negative p3, the hold continues,
otherwise hold is stopped at the end of that time, and normal polyphonic
ability resumes for that instrument. 

This is what I understand the defined, documented behaviour to be -
ihold is defined to force monophonic behaviour for the instrument. The
only way to create polyphonic held or legato voices in Csound is to use
distinct instruments. I can't see how this could be changed withought
completely redesigning everything!

Unless, of course...

Richard Dobson


jpff@maths.bath.ac.uk wrote:
> 
> 
> Can anyone confirm this?  I cannot see why it should be true looking
> at the sources.  I am reviewing all outstanding problems reported.
> 
> =John
> 
> >>>>> "Pablo" = Pablo Sotuyo  writes:
> 
>  Pablo>    Knowing there will be a 3.47 version of Csound (Thanks to
>  Pablo> all who were concerned ;) ) I would like it to get the ihold
>  Pablo> revised/modified to let the instrument stay poliphonic and not becomes
>  Pablo> monophonic as it behaves in 3.46 version of Csound (win) when you use
>  Pablo> it. Or at least include this behaviour in the next Csound Manual.
>  Pablo>                 Thank you all in advance.
>  Pablo>                 Pablo.


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Date:     Tue, 23 Dec 97 11:28:27 GMT
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