[LAD] Ladspa plugin invisible

Fons Adriaensen fons at kokkinizita.net
Thu Nov 29 08:49:47 UTC 2007

On Wed, Nov 28, 2007 at 06:39:00PM +0100, Rémi Thébault wrote:

> Is there a way to identify a frequency with quite high precision without
> computing a big spectrum analysis ?

- Do a series of short FFTs with a raised cosine window and L/2 overlap,
then use the evolution of the phase to find the exact frequency. 

- One short FFT to find approximate frequency, then start a PLL
to track the signal.

Both can be very precise if implemented correctly.


Lascia la spina, cogli la rosa.

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