thank you for your suggestions. I'm still not achieving results. I understand that there is many ways of getting this wrong and probably a few getting this right. Hopefully I'll get it right somehow.

@seb-harmonik-ar thank you for suggestion.
I have tried with a reformatted .txt file but still the type mismatch error persist

I have been scouting here and other available forums for a few hours, without success.
I have a csv with four columns, three of which are values I intend to convert to sound, the first column is an index.

So far this is what I got, and it stops at [text to list 1] with error unpack: type mismatch.

I have also tried -c in the read object and several values in [list split] 1 and 4.

Here is a sample of my csv file:
0,48,176,252
1,15,195,253
2,4,151,255

I have also tried formatting the csv file to space separated only, and space separated with ; on each line break.