Csound Csound-dev Csound-tekno Search About

Re: PAN question : working right?

Date1998-06-20 13:50
FromQATJD
SubjectRe: PAN question : working right?
	Hey thanks! Nice little additions there. I will be using them a lot.
	And, if I understand them to work the way I think they do,
locsig/locsend/space/etc.. will be like a swiss army  knife kind of thing.
Do I understand right : 
	locsig (or space ) duplicates kreverbsend amount of its output and aims it
at whatever locsend/spsend follows within that instrument? 
	if no []send follows this signal gets 'dumped'?
	Can I do whatever I want with the output of the send , i.e. not
necessarily reverb? This is almost like a ugen with an 'auxiliary output' !
	There are no provisions for multiple simultaneous send 'buffers' within an
instrument; but can I do a locsig-locsend followed by another
locsig-locsend within one instr?
	Dont want to be a pest, but I want to make sure I grip them fully, since
they'll be SO handy. 
	Now I've just got to get a quad setup going.....

	Thanks again.

At 08:36 PM 6/18/98 -0700, Richard Karpen wrote:
>
>Try using the new "locsig" and "space" units. there a bit more
>straight-forward.
>
>RK
>
>
>On Thu, 18 Jun 1998, QATJD wrote:
>
>> 
>> 	Howdy. I'm currently beginning to employ some stereo control within csound
>> (I do a lot of post-csound processing). And I'm not sure the x,y coordinate
>> system is working as documented, although I'm sure someone will point out
>> my user error : 
>> 	for the kx and ky parameters to pan, I'm trying to use an oscili signal to
>> control the pan at rates of .5-3 cps. But the best way I can get it to work
>> properly (i.e. nice even, full sine pan from one side to another) is in
>> offset mode, normalized, and sending kx from .5 to 1.5 and back. I can't
>> seem to get anything working in non-offset mode (get tiny or no signal out)
>> in the -1 to +2 area. My ftable is either a line from 0 to 1 or a GEN02
>> sketch of a first quarter sine (per manual's sugg) ; and it seems to work
>> just right either way with the setup above.
>> 	Could it be that the offset is working the wrong way? That would put my
>> .5-1.5 back in range.... but I hate to criticize others' code, especially
>> something that other people have _got_ to be using regularly out there.
>> 	BTW : How else might one 'automatically' generate a first quarter sine wav
>> via gen routine?) 
>> 	Also : in a GEN02 routine, with an extended guard point specified (size =
>> 65 or 1025 or the like): does one specify a value for the guard point or
>> does csound take care of it?
>> 	Any ideas appreciated.
>> 
>> pax vobiscum
>> 
>> 	thank you for your bandwidth
>> 
>> 	
>> 
>> 
>
>
>
>

	thank you for your bandwidth

	

Date1998-06-20 14:52
FromRichard Karpen
SubjectRe: PAN question : working right?

> 	locsig (or space ) duplicates kreverbsend amount of its output
> and aims it at whatever locsend/spsend follows within that instrument? 

Sort of. Actually they use kreverbsend to calculate amounts of "local" 
and "global" reverb according to the diagram in the Charles Dodge book. 
The amount of each of these is determined by distance. In other words, if
you have a sound that's close in, some amount of the signal will be
assigned to all channels in the "send" unit.  unit. A sound that's more
distant will have less effect on send channels other than the ones that
the direct signal is coming from. Hope this makes sense. It's a bit early
in the morning!



> 	if no []send follows this signal gets 'dumped'?
Right.

> 	Can I do whatever I want with the output of the send , i.e. not
> necessarily reverb? This is almost like a ugen with an 'auxiliary output' !
Absolutely!

> 	There are no provisions for multiple simultaneous send 'buffers'
> within an instrument; but can I do a locsig-locsend followed by another
> locsig-locsend within one instr? 
Should work fine.

Have fun!

RK


===============================================================
 Richard Karpen
 Professor, Music Composition and Computer Music
 Director, Center for Advanced Research Technology
	in the Arts and Humanities (CARTAH)
 Box 353680
 University of Washington
 Seattle, WA 98195

 Phone: (206) 543-7130  FAX: (206) 685-9499
 email: karpen@u.washington.edu
 www:   http://weber.u.washington.edu/~karpen
===============================================================