FILTFILT - Zero-phase forward and reverse digital filtering.
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From the original SynthMaker forum (2004–2014), with its members’ names and dates.
DigitalWhiteByte ·
Well, today I was wondering if we could create with SynthMaker the famous:
"Linear phase filter with forward and reverse blockbased application of IIR bandpass filter"
it is called "filtfilt".
The concept is not difficult,
should process the buffer signal forward and then backward,
and then reconstruct the signal by implementing a ovelap-add at least 50% of the signals processed, and this could be done in real time.
Obviously this would involve a delay, but could be improved by exploiting the primitive VST delay compensation.
Info Link
Could this scenario be possible?
Disco_Steve ·
yep
Done it 🙂
but SHHHH don't tell anyone 😉
there are some really tricky bits to sort out though, its not an easy ride, and the needed delay is annoyingly long. but you will discover this in your implementation.
good luck with the coding
Steve
DigitalWhiteByte ·
Disco_Steve wrote: yep
Done it 🙂
but SHHHH don't tell anyone 😉
there are some really tricky bits to sort out though, its not an easy ride, and the needed delay is annoyingly long. but you will discover this in your implementation.
good luck with the coding
Steve
Steve, I'm sorry but then you have already done something similar?
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