Hi there,
I couldn't find a straight answer elsewhere, so I want to put this here.
When I use the TIBQ software to generate my biquads, it gives strange results when I try to use positive gain numbers.
You would expect a 6db boost eq to be a 6db boost eq, but it affects the overall gain. It seems to be related to the the BW of the eq.
Treble shelf boost isn't even a treble shelf boost... it transfers into a bass shelf cut.
A 2nd order high pass with +6db gain gives different gains on the graph depending on the corner frequency.
What's going on here?
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I'm trying to write an excel document to calculate the coefficients but struggling to come out with the same numbers - does anyone have one pre-written?
Finally, if you want to create a biquad to do a simple flat response gain adjustment - how would you do this?
Thank you
David
