[godot]

As a karaoke fan and singer I like it! I just tried a random song off the top of my head, and it was basically perfect. The voice and instrument were splitted perfectly and the captions were in sync (caption 2 was better; 1 was too short).

I agree as a consumer this isn't super useful even as a karaoke fan; just because every song you type in, it takes a while to work on it (understandably). And like GP said, licensing issues probably make it hard to market this for consumers. But I wonder if you could market it to all the companies that make and distribute karaoke videos for songs (to karaoke shops). I know nothing about that industry, and would not be surprised if there's already tooling that exists for this in the industry, but at least this might be a competing way to do this more cheaply.

Alternatively, there's a lot of Youtubers who cover pop songs. There are probably ways to work with them so they could easily locate vocal-free versions of the songs they want to do.

[youka]

hi godot, thanks for your detailed feedback! i really think about product&fun before money. shorter processing time requires costly GPU.. as i see it, it's a really useful tool for the long tail, because for the popular songs you can use other great services thats produce it professionally (like sing king youtube channel), but the total count is only 30,000 songs from total of 60 millions songs!