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Cutoff frequency and resonance Q of insturment filter?

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Joined: 01/08/2014

Does anyone know how to get the exact cutoff frequency of the instrument filter, based on the cutoff dial? The user manual only says that it varies based on the sample rate and it's been optimized for 48 kHz. Also, how would I get the Q factor of the filter based on the resonance dial?

Basically, I need to be able to correlate Hydrogen's cutoff and resonance settings to other hardware or software filters (I know they won't sound exactly the same, but even an approximation would help). I tried looking through the source code, but in every instance I found, both the frequency and the resonance are stored as numbers from 0 to 1.