DSP Robotics Support

Hi all,

I'm making this cascade multi bandpassfilter where each bp cutoff is determined by a frequency in hz.
I don't know what I'm doing wrong. I've tried doing it in different way but nothing seems to work.
I've just started programming with flowstone after sometime with reaktor. I made the same filter with the same structure in reaktor and it works fine.

here's the file:

zoobooboozoo wrote:Hi all,

I'm making this cascade multi bandpassfilter where each bp cutoff is determined by a frequency in hz.
I don't know what I'm doing wrong. I've tried doing it in different way but nothing seems to work.
I've just started programming with flowstone after sometime with reaktor. I made the same filter with the same structure in reaktor and it works fine.

here's the file:

There is nothing wrong with the schematic itself. However you did not take into consideration one thing: the band pass filter is a constant skirt band pass. That means that the peak frequency is amplified Q times (Q is the resonance). You cascaded multiple of such filters with very high resonance and the peak frequency is amplified enormously - the output is clipping! you can see that using Scope module. Multiply output of our schematic with lets say 0.001 and you will see that it is normal sine wave.
To fix this problem go inside each of those filters and divide the bandpass output by resonance.

thanks kg