DCAudioDIY.com

DC Area Audio DIYer's Community
It is currently December 1st, 2020, 5:15 am

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 3 posts ] 
Author Message
 Post subject: Comb filtering
PostPosted: October 25th, 2020, 6:33 pm 
Offline

Joined: January 15th, 2015, 7:19 am
Posts: 1317
Location: Baltimore MD
I thought this was pretty good
Skip the first 6 mins.
I am going to change the way I measure systems because of this
https://youtu.be/VHjdh-Vka-g


Top
 Profile  
 
 Post subject: Re: Comb filtering
PostPosted: October 25th, 2020, 10:24 pm 
Offline

Joined: July 17th, 2016, 6:24 am
Posts: 829
Interesting but not convincing. In the stereo, polarity difference effects the sound staging, not the tone or timber.

_________________
Shashi


Top
 Profile  
 
 Post subject: Re: Comb filtering
PostPosted: October 26th, 2020, 7:16 pm 
Offline
User avatar

Joined: February 28th, 2013, 3:31 pm
Posts: 1436
I didn't watch the video but comb filtering refers to interference patterns caused by any sound sources, whether generators or reflectors that cause enhancements and cancellations to a propagated sound due to distances between them. The term "comb" refers to the amplitude response changes as the receptor moves to different positions between the sources. Those amplitude variations repeat in a fashion so that the amplitude response plot looks like the fingers of a hair comb. As you move along the "fingers" of the comb, the intensities change.

Here is what it looks like:
Attachment:
Comb filtering.png
Comb filtering.png [ 34.91 KiB | Viewed 187 times ]


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 11 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group