transeg — Constructs a user-definable envelope.


Constructs a user-definable envelope.


ares transeg ia, idur, itype, ib [, idur2] [, itype] [, ic] ...
kres transeg ia, idur, itype, ib [, idur2] [, itype] [, ic] ...


ia -- starting value.

ib, ic, etc. -- value after idur seconds.

idur, idur2, etc. -- duration in seconds of segment

itype, itype2, etc. -- if 0, a straight line is produced. If non-zero, then transeg creates the following curve, for n steps:

ibeg + (ivalue - ibeg) * (1 - exp( i*itype/(n-1) )) / (1 - exp(itype))


If itype > 0, there is a slowly rising, fast decaying (convex) curve, while if itype < 0, the curve is fast rising, slowly decaying (concave). See also GEN16.

See Also

expsega, expsegr, linseg, linsegr


Author: John ffitch
University of Bath, Codemist. Ltd.
Bath, UK
October 2000

New in Csound version 4.09

Thanks goes to Matt Gerassimoff for pointing out the correct command syntax.