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That roboticness is because there's overlap in frequencies between the voice and the instruments. I have no idea how this tool splits them up at the implementa

by nickjj 7y ago

That roboticness is because there's overlap in frequencies between the voice and the instruments. I have no idea how this tool splits them up at the implementation level but I imagine it tries to split it up based on frequencies and when it lifts out the voice, it's cutting out a ton of frequencies that would normally be in your voice so now it sounds very unnatural, blocky and metallic. With studio quality headphones I can notice a massive difference for the worse between the original and separated vocal track. It reminds me of when I turned on a noise gate too high when recording audio for my courses. That noise gate clamps down on certain frequencies to help eliminate room noise but it also dampens or removes natural frequencies that occur on the low end of an average male voice. It gives that same very jagged sounding audio waveform.

codedokode 7y ago
I don't argue that it's a great technology, but some of the neighbour commenters wrote things like "perfect", and to me it doesn't sound like "perfect" yet. For example, in the beginning, if you listen to the phrase "from the office ...", in original recording it sounds smooth, like a single phrase (and the voice is warm and pleasant), but in the separated track it sounds like it is synthesized from pieces that are not properly connected, like vocaloid songs. It sounds little harsher. Transitions sound unnatural. And the phrase "heya Tom" in the separated track is split into "heya" and "Tom" with some unnatural sound between (or maybe in the beginning of "Tom"). It is like transitions you can hear in vocaloid tracks. Or the kind of artifacts you get if you over-compress an MP3 file. And "it's good to see you" part also sounds robotic. Maybe it's losing some of harmonics, but in a different way for different syllables and they don't sound like a single phrase anymore.
- sjwright 7y ago
  It’s perfect relative to the most wildly optimistic expectations anyone could have reasonably held beforehand. The vocals don’t have any significant residual artefacts from drum hits or any residual bleed-through of instruments playing the same notes. It’s magical.

by nickjj 7y ago

codedokode 7y ago

I don't argue that it's a great technology, but some of the neighbour commenters wrote things like "perfect", and to me it doesn't sound like "perfect" yet. For example, in the beginning, if you listen to the phrase "from the office ...", in original recording it sounds smooth, like a single phrase (and the voice is warm and pleasant), but in the separated track it sounds like it is synthesized from pieces that are not properly connected, like vocaloid songs. It sounds little harsher. Transitions sound unnatural. And the phrase "heya Tom" in the separated track is split into "heya" and "Tom" with some unnatural sound between (or maybe in the beginning of "Tom"). It is like transitions you can hear in vocaloid tracks. Or the kind of artifacts you get if you over-compress an MP3 file. And "it's good to see you" part also sounds robotic. Maybe it's losing some of harmonics, but in a different way for different syllables and they don't sound like a single phrase anymore.

sjwright 7y ago
It’s perfect relative to the most wildly optimistic expectations anyone could have reasonably held beforehand. The vocals don’t have any significant residual artefacts from drum hits or any residual bleed-through of instruments playing the same notes. It’s magical.