I've tried numerous source files including percussive & non-percussive, none of the source files have clicks. I even tried manually setting the ienvchoice parameter to 1, the default, but that hasn't helped. Aside from using 0, which supposedly turns enveloping off, there aren't any other listed options.

As mentioned the odd thing is it only occurs in the right channel, not the left. It appears the envelope function is not working properly for the right channel.

I posted a few images, the clicks are clearly visible, they occur between two individual samples. I'm using a ksmps of 32, sr 48000 as per original files. I've tried lower ksmps (1) and higher with no success. 

https://www.dropbox.com/s/imod1g8borx70ys/Screenshot_1.png?dl=0

https://www.dropbox.com/s/wd6b2e721vn0gll/Screenshot_2.png?dl=0

Scott

Csound mailing list
Csound@listserv.heanet.ie
https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
Send bugs reports to
        https://github.com/csound/csound/issues
Discussions of bugs and features can be posted here