Audio time-compression (Was: On 80 columns should (not) be enough for everyone)

[Ulrik Mikaelsson]

2011/1/31 Walter Bright <newshound2 at digitalmars.com>:
>> 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.
>
> I think the problem is it either never occurred to Tivo or Youtube, or they
> don't care about it. When I shut off my Tivo service, I told them that such
> a feature would entice me to keep it. But I seriously doubt they transmitted
> my idea to the right people.

Perhaps, although I develop for STB:s at work, and I know how
amazingly price-pressed the hardware is. Seriously, it's designed to
show live HD, but the developers manual for one manufacturer, there's
a performance-warning about animated GIF:s (not kidding).

My guess is, the only FFT the box can manage is the one hard-coded in
the video-chip, which can't easily be exploited for other means.

Of course, I don't know what HW the Tivo is using, perhaps they're just lazy. :)