Vak Ath

Hi, I'm currently working on creating a representation of an opamp gain circuit with built in lowpass filter.

I have a transfer function in continuous time for the actual circuit H(s):

where g, k, v are variables I have declared.

I'm wondering if there is a way to represent this in max/msp.

I have looked at the biquad however it only has 5 inputs while I require 6.

I am also interested in the biquad standard naming for coefficients.

However there is no b0 input for the biquad device so I'm wondering if this is the correct thing to use.

I'm a complete beginner to max/msp so let me know if this is even possible.

I have created the circuit in MATLAB using these coefficients and it works as intended.

If you require any further info let me know as I'm not sure I have given all the relevant info.

Hi, I'm currently working on creating a representation of an opamp gain circuit with built in lowpass filter.
I have a transfer function in continuous time for the actual circuit H(s):

H(s) = s^2   +  g * s    + v
_____s^2   +  k * s    + v

where g, k, v are variables I have declared.
I'm wondering if there is a way to represent this in max/msp.
I have looked at the biquad however it only has 5 inputs while I require 6.
I am also interested in the biquad standard naming for coefficients.
I am using the standard:

H(s)   = b2s^2  + b1s + b0
_____a2s^2  + a1s + a0
However there is no b0 input for the biquad device so I'm wondering if this is the correct thing to use.

Any advice would be great.
I'm a complete beginner to max/msp so let me know if this is even possible.
I have created the circuit in MATLAB using these coefficients and it works as intended.
If you require any further info let me know as I'm not sure I have given all the relevant info.

second-order-filter-design-in-max-msp

If anyone wants to answer this feel free.

I have simply obtained the cutoff frequency using matlab and then used it in the gain filter

I have found an alternative way.
If anyone wants to answer this feel free.
I have simply obtained the cutoff frequency using matlab and then used it in the gain filter


Second order filter design in max msp.