Re: Zero Delay SVF and Allpass based filter.
Posted: Tue Aug 15, 2023 1:53 pm
Sorry I am traveling and have no FS with me, so I cannot really appreciate what you are doing. From your remarks I had the impression that you expected a transfer function with zero delay, hence my input. I may be on the wrong track, though. At any rate, SVF with zero delay feedback topology is a well understood thing: you have three output pins for lowpass, bandpass, and highpass, respectively. Combining these you can implement other filter types like allpass, notch, etc.
Of course you can combine allpass filters to obtain lowpass, highpass, and other filters, but that seems like an unnecessary detour when starting out with SVF where you already have these filter types to begin with.
I think I should wait and refrain from further posts until I return.
Of course you can combine allpass filters to obtain lowpass, highpass, and other filters, but that seems like an unnecessary detour when starting out with SVF where you already have these filter types to begin with.
I think I should wait and refrain from further posts until I return.