Hello,

 in Csound Help 3.56, nsamp syntax is described:

--
irate	nsamp	iftab
--

 but the correct should be:

--
nsamp(iftab)

iftab	- function table number.

nsamp returns the number of samples effectively loaded by 
GEN01 or GEN22 into iftab from a file. nsamp is useful when 
table length is a power of two (i.e. no deferred allocation 
is used) larger than the file sample number of the file.
--

 At least this functions with Winsound 3.56 and 
 DirectCsound 2.702.

Best ,

Guto