[linux-audio-user] stretching sound

[luis jure]

el Sat, 29 Nov 2003 11:51:42 +0100 (MET)
Oyvind Hammer <oyvind.hammer at nhm.uio.no> escribió:


> I would guess that
> 1024 or perhaps 2048 should be good, and similar for fft length.
> *Not* as high as possible!

i second that opinion (not that it matters much, i'm no dsp expert..).


> Window type doesn't matter much [...]

here i disagree. triangular would be inconvenient, as well as kaiser with a
low coefficient (approaching a rectangular window). i'd try something
between 0.35 and 0.6 to start.


> - I usually use Hanning (not Hamming).

those are good bets, as well as blackmann windows, which i usually prefer
for certain applications. 


lj

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