How can people create songs that are “slowed + reverb” and it sounds high quality, but when I try to slow down a YouTube video, movie, sports footage or anything else it sounds like a bleeping demon through the audio?

Question

How can people create songs that are “slowed + reverb” and it sounds high quality, but when I try to slow down a YouTube video, movie, sports footage or anything else it sounds like a bleeping demon through the audio?

In: 2

Answer 1

The alogrithm that YouTube website player uses to slow audio is low quality.

If you use a higher quality timestretch alogrithm then you can achieve good quality results.

Starting from a high quality audio source helps too.