2011/1/30 Walter Bright <newshou...@digitalmars.com>: > People who use screen readers often crank up the playback rate to 2x. The > software adjusts the pitch so it doesn't sound like the Chipmunks. > > I've often wondered why DVRs don't do this (I've sent the suggestion to > Tivo, they ignored me). I'd like the option to play the news (or other talk > shows) at a faster rate, with pitch adjustment. I've found I can watch Tivo > at 3x with the closed captioning on, and can almost keep up. The problem > with DVRs at any fast forward speed is they turn the sound off! Grrrr. > > A golden opportunity missed. > > I'd also love it if youtube etc. did this. It's so boring looking at youtube > presentations because they talk so slow. I'd love a double speed youtube > viewing option. > > Remember I posted this in case some troll tries to patent it. I KNEW I wasn't alone at this. My S.O. usually just rolls her eyes when I do this. (Tip: VLC does it for at least double-speed)
I think the reason I.E. YouTube and Tivo don't do it is that AFAIU, it is fairly CPU-consuming (FFT back and forth?) In the TiVo-case, my guess is nobody paid for the hardware, and in the YouTube-case I doubt neither Flash nor JavaScript will enable the performance required. Perhaps it can be done browser-dependently with HTML5. Now, what we need is the audio-equivalent of this: http://www.youtube.com/watch?v=6NcIJXTlugc