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A place to discuss member's DIY audio projects & post pictures/schematics. NOTE: There is a limit of 2MB per attachment, and a maximum of 3 attachments per message. If you need to post more than 3 attachments, just add another message.
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Comb filtering problems

March 19th, 2026, 4:09 pm

While doing research for my upcoming article on the BACCH system, one of the things I discovered was that in addition to the generally known spatial enhancement of crosstalk cancellation provided by BACCH, it also reduces comb filtering effects of centrally placed sound sources with a two or more speaker setup. The above link gives a clear description of that problem with interesting audio examples of the resulting damages to a guitar, a voice and a drum set. Definitely something to be avoided and is ameliorated with BACCH. The resources in the upcoming article will provide more food for thought, but not in such a simple fashion.
https://www.izotope.com/en/learn/what-i ... 9Si_axB6Zu

Re: Comb filtering problems

March 20th, 2026, 8:25 am

Thanks for the link, Tom.

Both the explanation and especially the audio clips, make the cause and sound of the filtering very understandable.

Stuart
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