yes, I wonder. The Hann window would of course be a raised scaled cosine (it
could reside in a library of course).
Hopping and overlapp-add may be important beyond the STFT, for other types of
processing. As I said, maybe it just can't be done within the constraints set
by the language. It's been quite a while since I remember chatting about this
with Yann.
best
Prof. Victor Lazzarini
Maynooth University
Ireland
On May 6, 2021, at 2:41 PM, Dario Sanfilippo <sanfilippo.da...@gmail.com> wrote:
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Hi, Victor.
I literally never work with FFT and all I know dates back to a decade or so ago
when I studied it for my master: I don't remember much. Sorry in advance for
clueless questions.
If we had primitives performing FFT and IFFT, would it be possible to do the
overlapping stages in Faust with delayed signals?
Something like this, for example?
import("stdfaust.lib");
hann(size) = sin((ba.period(size) / size) * ma.PI) ^ 2.0;
hann_overlap(size, factor) = sum(i, factor, hann(size) @ ((size * i) / factor))
/ (factor / 2);
process = hann_overlap(1024, 8);
Ciao,
Dario
On Sun, 2 May 2021 at 14:52, Victor Lazzarini
<victor.lazzar...@mu.ie<mailto:victor.lazzar...@mu.ie>> wrote:
Because it's been so many years since I remember discussing this, and because
there's so many clever and knowledgeable people working on the Faust sources, I
am supposing the hopping issue has no solution.
Is that right?
I was reminded of it by an user asking about the question here last week. My
answer, which went directly to him, is that as far as I knew hopping was out of
question, but that Julius had written an FFT, but to apply it to a stream, it
had to be done on sample-by-sample basis. Julius then confirmed it here.
Just curious to know the status of this.
Prof. Victor Lazzarini
Maynooth University
Ireland
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