Hans Tutschku

I have formant data expressed in Frequency in Hz, Amplitude in dB and bandwidth in Hz.

How can I convert those values to be used with the CNMAT resonators~ object?

Conversion from Amplitude to gain is easy with dbtoa.

But how do I get from bandwidth to decay rate?

I have formant data expressed in Frequency in Hz, Amplitude in dB and bandwidth in Hz.
How can I convert those values to be used with the CNMAT resonators~ object?
Conversion from Amplitude to gain is easy with dbtoa.
But how do I get from bandwidth to decay rate?

I have formant data expressed in Frequency in Hz, Amplitude in dB and bandwidth in Hz.
How can I convert those values to be used with the CN

convert-formants-freq-gain-bw-to-resonators-freq-gain-decay-rate

the shape of the formants is... unknown. in my experience a 24 db/octave rolloff works well.

no idea how they once measured these bandwidth values. maybe with 40db/octave like you´d do for reverb time?

overall it is easier to use this kind of data with poles and zeros, FIR, paf and that kind of stuff. 

resonators~ is a bit a minefield for human vocal formants.


the shape of the formants is... unknown. in my experience a 24 db/octave rolloff works well.

no idea how they once measured these bandwidth values. maybe with 40db/octave like you´d do for reverb time?

overall it is easier to use this kind of data with poles and zeros, FIR, paf and that kind of stuff. 

resonators~ is a bit a minefield for human vocal formants.


convert formants (freq, gain, bw) to resonators (freq, gain, decay rate)