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[Cs-dev] Sliding Discrete Fourier transform

Date2007-09-28 06:49
Fromjpff
Subject[Cs-dev] Sliding Discrete Fourier transform
I have implemented the SDFT inside Csound5; there is a SConstruct
option to build it which is on by default.  It is integrated into the
pvs stuff, in that if the overlap is less that the krate or less that
10 it switches to SDFT.  At present I have not worked out what to do
about read/write/diskin, but the other opcodes are done (subject to my
checking as I did this on holiday).  There are also a-rate versions of
pvsfilter (third arg), pvsbin (answers), and pvsmooth (args 2 and 3).
They are kind of obviously changed.

This code is not for realtime use!  It is slow, but the audio quality
is high.  I am trying to write a short paper (for Csound Journal?) on
the way to use it and examples.

What I have not done is change the manual.

..oh and I also added warnings if the in and out f-vars are the same.

==John ffitch

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Date2007-09-30 18:57
FromAndres Cabrera
SubjectRe: [Cs-dev] Sliding Discrete Fourier transform
Hi John,

What changes in this regard need to be done in the manual?

Cheers,
Andrés


jpff escribió:
> I have implemented the SDFT inside Csound5; there is a SConstruct
> option to build it which is on by default.  It is integrated into the
> pvs stuff, in that if the overlap is less that the krate or less that
> 10 it switches to SDFT.  At present I have not worked out what to do
> about read/write/diskin, but the other opcodes are done (subject to my
> checking as I did this on holiday).  There are also a-rate versions of
> pvsfilter (third arg), pvsbin (answers), and pvsmooth (args 2 and 3).
> They are kind of obviously changed.
>
> This code is not for realtime use!  It is slow, but the audio quality
> is high.  I am trying to write a short paper (for Csound Journal?) on
> the way to use it and examples.
>
> What I have not done is change the manual.
>
> ..oh and I also added warnings if the in and out f-vars are the same.
>
> ==John ffitch
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Microsoft
> Defy all challenges. Microsoft(R) Visual Studio 2005.
> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
> _______________________________________________
> Csound-devel mailing list
> Csound-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/csound-devel
>
>   

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