I have a possible bug report for the current csound, or perhaps I am using
it wrong.

ADSR doesn't seem to do what I expect, or wish it would. If the length of
the note is less than the sum of ADR, it cuts off the note with a click. Is
there some what to make it more tolerant of notes that vary in length? For
example, if I define an instrument with an envelope as follows:

;instrument fragment
instr 1
icps = 440.0
ifno = 23
ibasoct = 6
iamp = ampdb(p4)
ampAdsr     adsr    .01, .05, .9, .2; iatt, idec, islev, irel
amp = iamp * ampAdsr
a1 loscil  amp, icps, ifno, cpsoct(ibasoct)
out a1
endin

; score fragment
f23 0 0 1 "guitar/NYLONe1.wav" 0 4 0
;Inst Start  Dur  Vel
i1     0    1     90
i1     1    .5    .
i1     2    .25   .
i1     3    .125  .
i1     4    .0625 .

This works the way I expect it only for notes of a duration greater
than the sum of .01 + .05 + .2 = .26.
For shorter notes, the sound cuts off abruptly,
resulting in a click at the end of the note.
Also, on the loscil never gets to its normal
decay loop. Is there another way I can do this?
I notice in the manual for loscil a reference to linenr,
but for score based notes, this does not work.


Prent Rodgers

IBM Seattle
S/390 and Storage
(206) 587-2868
tie line 277-2868