[PD] Sibilant Detection

[ZÉ Oliveira]

Hello all.
I´m trying to find or eventualy bild up, for pure data, some sibilant
detection objects or patches
To detect  Ssss... Zzzz.... Chhhh... sounds in speach, also Ffffff and Vvvvv
eventualy. To generate some visual interaction.

Can some one guide me in to this field?
Thanks
Zé
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