I want an instrument that can play a section from a soundfile starting
at an arbitrary point (as a parameter) for some time.  At present I
am using diskin2 which is clearly stupid as i am reading the same two
files hundreds of times.  There must be a simpler way!  I tried to use
table but I could not work out how to do it.  There is no sr change
and no interpolation needed, but I am out of ideas.  There must be a
simpler way than me writing a new opcode in C.
  Please help a tired mind.  I get so little time to compose and this
is really holding me up!
==John ffitch

Perhaps I am misunderstanding the question, but if you have loaded the  
soundfile as a table, then reading an arbitrary segment out of the  
table would be fairly straightforward:

instr 1
	; p3 = duration, in seconds
	; p4 = starting point in file, in seconds
	; p5 = transposition, where 1 is normal, 2 is one octave higher, etc.
	; p6 = table N
	adur line p4,p3,p4+(p3*p5) ; gives position in seconds
	adur = adur*sr ; convert to samples
	asnd table adur,p6,0 ; read from table
	...




On Jun 23, 2008, at 9:53 AM, jpff wrote:

> I want an instrument that can play a section from a soundfile starting
> at an arbitrary point (as a parameter) for some time.  At present I
> am using diskin2 which is clearly stupid as i am reading the same two
> files hundreds of times.  There must be a simpler way!  I tried to use
> table but I could not work out how to do it.  There is no sr change
> and no interpolation needed, but I am out of ideas.  There must be a
> simpler way than me writing a new opcode in C.
>  Please help a tired mind.  I get so little time to compose and this
> is really holding me up!
> ==John ffitch
>
>
> Send bugs reports to this list.
> To unsubscribe, send email sympa@lists.bath.ac.uk with body  
> "unsubscribe csound"

I want an instrument that can play a section from a soundfile starting
at an arbitrary point (as a parameter) for some time.  At present I
am using diskin2 which is clearly stupid as i am reading the same two
files hundreds of times.  There must be a simpler way!  I tried to use
table but I could not work out how to do it.  There is no sr change
and no interpolation needed, but I am out of ideas.  There must be a
simpler way than me writing a new opcode in C.
  Please help a tired mind.  I get so little time to compose and this
is really holding me up!
==John ffitch


Send bugs reports to this list.
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