For Soundcloud, the file must be in 44.1 Khz (std in audio).
For YouTube, the file must be in 48 Khz or 96 Khz (std in video).
https://support.google.com/youtube/answer/1722171?hl=en&topic=1728573&hlrm=en-GB&ctx=topic#zippy&zippy=
And, of course, nice modular Buddha Machine :)
-- Jihel
Thanks for that pointer - I'll double check my settings. Pretty sure my audio is right on Soundcloud, but unsure about the video.
Cheers