Interesting, I recognise that code. I wrote it 
: Nearest Neighbor Upsampling - #4 by steve
Add this line at the top of the script, so that it is on the first line, on its own, and the script will work with Audacity 3.1.3
;version 3
Interesting, I recognise that code. I wrote it : Nearest Neighbor Upsampling - #4 by steve
Add this line at the top of the script, so that it is on the first line, on its own, and the script will work with Audacity 3.1.3
;version 3