Jan Henning Mueller
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Posts: 1
Aachen, Germany
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Hello,
I created with MATLAB fdatool of the Signal Processing Toolbox an audio IIR filter. In Matlab, the filter works great.
Then I tried to manually build the IIR filter in VHDL and I tried to build it using the MATLAB integrated HDL Toolbox. In both cases a simulation with Modelsim didn't work, I get only different kinds of noise at the filter output.
Has anybody an idea, if there is a known issue or what else could be the problem?
I want to use an IIR filter to reduce the number of coefficents. Is that maybe a bad idea?
Thanks,
Jan Henning Mueller
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