Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Multi-Way Conventional loudspeakers with crossovers

Comb Filtering from "mesh"
Comb Filtering from "mesh"
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 14th March 2009, 06:28 AM   #11
Pano is online now Pano  United States
diyAudio Moderator
Pano's Avatar
Join Date: Oct 2004
Location: SW Florida
Comb Filtering from "mesh"
Yes, the impulse measuremants will be very interesting!

Thanks for dong this.
  Reply With Quote
Old 14th March 2009, 01:39 PM   #12
HK26147 is offline HK26147  United States
diyAudio Member
Join Date: Jan 2008
The use of the phrase "comb filter" depends on the context of use, but when graphed in a linear ( non log ) fashion the harmonic nature is very apparent.
For someone involved in setting up microphones for PA or recording, it manifests when the delayed secondary source from a reflection ( from a floor or podium ), creates constructive and destructive interference patterns with the primary source.
The Δd of the primary to secondary source ( and the delay in time ) can be such that it create patterns of cancellation and reinforcement.

In the Pro Sound area guys like Bob McCarthy deal with combing because they have big stacks of speakers to distribute sound over a large area and LF stacks will create the same effect if not dealt with appropriately. Constructive/destructive interference, is not just from a "virtual source" reflection.

This is one my favorite applets from this site

It demonstrates interference fairly well, between 2 sources (real or virtual ).

To TV engineers and users of music synthesizers comb filter have a use in their domain.
It is always a harmonic relationship.
  Reply With Quote


Comb Filtering from "mesh"Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
What makes an amplifier "bright", "warm", or "neutral"? JohnS Solid State 51 13th December 2009 06:42 PM
Phase/Polarity/Comb Filtering PT1&2 kyrie48 Multi-Way 0 6th January 2009 08:28 PM
Comb filtering and driver placement angel Multi-Way 5 29th March 2004 12:04 AM
A cure to comb filtering in line arrays Elias Multi-Way 0 5th March 2004 02:59 PM
Hornloading, fatigue, comb filtering... walker Multi-Way 1 20th November 2001 08:55 AM

New To Site? Need Help?

All times are GMT. The time now is 06:12 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio