"<b><i>...[</i></b><b><i><a href=""https://www.youtube.com/watch?v=G025oxyWv0E&amp;t=01m13s"">01:13</a></i></b><b><i>] actually", you should take a hint from your PC which can speed-up-or-down audio-and-music and still sound-right, at any, frame rate, (I often watch science videos at 2×)...</i></b>,(reply>), <b><i>...the technology is-not skippy, (sometimes refreshing-the-browser is necessary); though I haven't the spec. there are audio compression techniques that utilize all, the sound, e.g. Gaussian-overlapping consecutive milliseconds out-of-phase, will avoid in-phase-cancellation, and tempering-like barely-off-frequency helps that...</i></b>,(reply>), Youtube does that by skipping sounds, it doesn't actually play them at a higher speed