Go Back   Home > Forums > Loudspeakers > Multi-Way
Home Forums Rules Articles Store Gallery Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Multi-Way Conventional loudspeakers with crossovers

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
Closed Thread
 
Thread Tools Search this Thread
Old 26th April 2010, 03:47 PM   #13111
gedlee is offline gedlee  United States
diyAudio Member
 
Join Date: Dec 2004
Location: Novi, Michigan
Kareface - I like your approach "Then you wouldn't care if it's called magic then?", excellent point. You have an above average knowledge of acoustics and physics - not very common arround here. We tend to get a lot of "magicians" and "psychics" who can hear things that defy explaination ... and thats how they explain it.

Decent HT too, but I would NIX the glass top coffee table. I've had a lot of trouble with those. Coffee table in general are a problem, but glass tops just acentuate the issues.

Last edited by gedlee; 26th April 2010 at 03:53 PM.
 
Old 26th April 2010, 03:48 PM   #13112
doug20 is offline doug20  United States
diyAudio Member
 
Join Date: Mar 2009
Quote:
Originally Posted by kareface View Post
I can see when someone is clearly relying on faith to support a premise. Trust me I have no illusions about changing his mind. Consider me warned, don't worry about my time or energy being wasted. I wouldn't reply if I wasn't enjoying the discourse.
lmao, you and me both on the enjoyment
 
Old 26th April 2010, 03:55 PM   #13113
tinitus is online now tinitus  Europe
diyAudio Moderator
 
Join Date: Nov 2005
I dont think I have ever heard anyone object against doing measurements
 
Old 26th April 2010, 04:12 PM   #13114
gedlee is offline gedlee  United States
diyAudio Member
 
Join Date: Dec 2004
Location: Novi, Michigan
But isn't the problem that when the measurements say that there is nothing to hear, you still hear something? There is no point in doing measurements if you are not going to accept the results.
 
Old 26th April 2010, 04:17 PM   #13115
doug20 is offline doug20  United States
diyAudio Member
 
Join Date: Mar 2009
Quote:
Originally Posted by tinitus View Post
I dont think I have ever heard anyone object against doing measurements
have valid measurements been posted that prove audibile differences?
 
Old 26th April 2010, 04:24 PM   #13116
tinitus is online now tinitus  Europe
diyAudio Moderator
 
Join Date: Nov 2005
No, no problem
The problem I see is that theres still no standards telling us how multiple measurements correlate to each other
I have heard the strangest things from combinating various materials
And the best is usually still just choosing a compromise, or put differently, choosing the best compromise

But I doubt anyone really likes the perfect
Perfect is boring
 
Old 26th April 2010, 04:25 PM   #13117
diyAudio Member
 
kareface's Avatar
 
Join Date: Aug 2009
Location: Seattle, Wa
Quote:
Originally Posted by gedlee View Post
Kareface - I like your approach "Then you wouldn't care if it's called magic then?", excellent point. You have an above average knowledge of acoustics and physics - not very common arround here. We tend to get a lot of "magicians" and "psychics" who can hear things that defy explaination ... and thats how they explain it.
Thanks, just to give you guys a little background. I'm actually quite new to DIY speakers, it's becoming a fun hobby with another pair in the works. I've helped designed many large scale and small scale sound rooms and home theaters. I'm HAA certified, I plan to do my masters in acoustical physics or engineering and I'd be willing to bet Ted White would corroborate me when I say I understand soundproofing, not to his degree tho. I'm a strong supporter of the Socratic method and objective verification, I know how frail the human mind is and how easily we tend to latch on to foundation-less arguments. I always try to be critical of my own beliefs.

Quote:
Originally Posted by gedlee View Post
Decent HT too, but I would NIX the glass top coffee table. I've had a lot of trouble with those. Coffee table in general are a problem, but glass tops just acentuate the issues.
I'm actually really embarrassed about the room right now. I've been planing DIY sympathetic resonators, diffractors and some fiberglass panels. My time and money has been dedicated to my work computers as of late, but once I get my house in order I plan on acoustically treating the room. Right now I'm not sweating over the coffee table when there's so many other things that need to be corrected to get ideal reproduction. With a little luck I'll have the time to finish everything before summers up.
 
Old 26th April 2010, 04:29 PM   #13118
diyAudio Member
 
Join Date: Jul 2003
Location: berkeley ca
Measurements change with time. There was a time in my professional experience, when time delay was considered completely inaudible, except for echo like aberrations. This was called Ohm's second law (of acoustics) Well, Ohm was off course a little, and now you don't hear about his second law. However, in 1937, it was as important as his law of resistance. Times change, paradigms shift, and measurements move in a different direction.
 
Old 26th April 2010, 04:38 PM   #13119
jlsem is offline jlsem  United States
diyAudio Member
 
jlsem's Avatar
 
Join Date: Jun 2003
Location: Dallas,TX
Quote:
Not to mention below 500hz it doesn't even matter if we have 2 ears.
That's one one the silliest quasi-scientific statements I've ever read. Do you mean to say that it's neither possible nor necessary for a person to distinguish the direction or distance of another human voice?

John
 
Old 26th April 2010, 04:40 PM   #13120
diyAudio Member
 
kareface's Avatar
 
Join Date: Aug 2009
Location: Seattle, Wa
Quote:
Originally Posted by tinitus View Post
No, no problem
The problem I see is that theres still no standards telling us how multiple measurements correlate to each other
I have heard the strangest things from combinating various materials
And the best is usually still just choosing a compromise, or put differently, choosing the best compromise

But I doubt anyone really likes the perfect
Perfect is boring
You have to agree on the definitions of the words before standards can be set. You can measure warmth, it's distortion which tends to accentuate specific frequencies and not others. Live is too high of a decay time. Dead is too little decay time and a muffling of the higher frequencies. Imaging (2 channel) is the delay time between the 2 channels + early or late reflections within the haas window. All the data is there, you just need to know what you're looking at and what you're looking for. The biggest problem is the misuse of words and the subjective elements of sound. It's pretty clear tho, if we run a test on 2 cables (with in reason) and the results are close enough for the recordings to nullify, there isn't much of a question on the matter. Moving your speaker 1" will produce a greater impact on the measurements.
 

Closed Thread


Hide this!Advertise here!

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



New To Site? Need Help?

All times are GMT. The time now is 09:38 AM.

Page generated in 0.20519 seconds (65.70% PHP - 34.30% MySQL) with 11 queries

Copyright ©1999-2012 diyAudio