I've read about a few listener comprehension studies, and it's been found that people generally comprehend higher pitched, slightly faster than average, voices better, and female voices are better than male for comprehension and retention.

I don't know how that applies to this particular trick, but this is something I've had a vague wish for, for years. Though I just wanted a button on YouTube for, "Talking too slow!" that would speed them up some.

> comprehend higher pitched, slightly faster than average, voices better

That's definitely true. Not comprehending them takes years of married life and continuous practice.

How come no pitch correction in sample videos ? I assume AviSynth is capable of doing that.

Myth TV can run playback at faster (or slower) than real time, and does pitch correction.

My sweet spot seems to be 1.5x-3x depending on content. Movies tend to lose nothing no matter how fast you watch them, while technical stuff gets hard to follow really fast.

The audio got distorted when I corrected pitch on videos > 2x. The videos < 2x have pitch corrected.

Reclock is a much better option IMO http://www.videohelp.com/tools/ReClock_Directshow_Filter

AviSynth isn't the best audio processor. It's much better with the visual side of frame rate conversion. Its other strong points are: dealing with interlacing correctly, resizing, pseudo HDR, and improving how the clip looks (denoise, deblock, dehalo, sharpen, ect...). It's something I play around/code for with in my spare time. Check it out, you might like it :) http://avisynth.org/

I do this pretty often when listening to books on tape, I thin it's a natural to do this when listening to long-form video.

I believe I read once that advertisers have software that reduces the length of the pauses between words/sounds in a video to speed it up, without it seeming as sped up.

I would like to see and try that, since my perception is that unless one deliberately adds them, there are no pauses between words. (Try to listen to a foreign language radio station and identify where the words are, for instance).

First time I read that, it sounded like the title of another useless, obvious patent.

"A method for faster performance through accelerated playback"

Man, I thought this was going to be a parody of speed reading.

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