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Klentock1 ·
I'm trying to build a comb filter but I cant seem to get it to work. What parameter is being changed that gives the comb filter its sound? I've been at it all day and my maths isn't the best so it's not producing the desired effect. I've had a look at the comb filter in freeverb and messed around with it a bit but my knowledge is rather limited.
If anyone could give me some basic tips or even better an example osm that would be great.
oddson ·
Klentock1 wrote: What parameter is being changed that gives the comb filter its sound?
We can't leave you with your first two posts both unanswered and since this one is easy...
simpleComb.osm
This shows that on a simple feedback comb there are only two parameters. The gain in the feedback and the delay length of the feedback loop.
The delay length sets up interference between the incoming and delayed signals. Frequencies nearest integer multiples of the delay wavelength get large boost while those in the middle between multiples are most attenuated.
Klentock1 ·
Thanks again for your reply Oddson!
After a few hours reading and trying to get my head around the math I managed to come up with a useable comb filter earlier today. Thanks for posting your example *.osm though. It's very much appreciated.
You are one helpful fellow! Thumbs up to you pal!
MichaelBenjamin ·
you can do a nice comb filter stereo effect with a single delay without feedback: just substract the delayed signal from the one channel and add it to the other channel. the amount of delay determines the stereo effect.
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