John Curl's Blowtorch preamplifier part II - Page 2599 - diyAudio
Go Back   Home > Forums > Member Areas > The Lounge

The Lounge A place to talk about almost anything but politics and religion.

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
Reply
 
Thread Tools Search this Thread
Old 10th August 2012, 09:41 PM   #25981
bcarso is offline bcarso  United States
diyAudio Member
 
Join Date: May 2005
Location: Canoga Park, California
Quote:
Originally Posted by RNMarsh View Post
does that matter? The current discussions are great.
No --- only that one might suppose that FT had initiated the thing based on the name of it. In fact he told me he expressed some reticence when he found out about it, but agreed to participate. Despite having retired from Harman, he's busier than ever.
  Reply With Quote
Old 10th August 2012, 09:50 PM   #25982
RNMarsh is offline RNMarsh  United States
diyAudio Member
 
RNMarsh's Avatar
 
Join Date: May 2012
Location: 2457 Cascade Trail; Cool, CA. 95614
Default Need help?

I just found some good stuff related to being rude: There is the socially acceptable way as often express here (sarcasm, inuendo etc) and there is the direct way - not socially acceptable. Feel free to use any of these:

I'd like to apologize in advance for my behavior later.
Enough talk about you. Let's talk about me!
The last thing I want to do is disappoint you. BUT it's still on my list!
Two wrongs dont make a right But three rights make a left.
Scientists say the universe is made up of protons, neutrons & electrons.... They forgot to mention morons.
If it moves, its Biology.
If it stinks, its Chemistry.
If it doesn't work, its Physics.

But some here do pretty good without my help. Got more?

Last edited by RNMarsh; 10th August 2012 at 09:52 PM.
  Reply With Quote
Old 10th August 2012, 09:53 PM   #25983
diyAudio Member
 
Wavebourn's Avatar
 
Join Date: Sep 2006
Location: Pleasant Hill, CA
Send a message via Skype™ to Wavebourn
Quote:
Originally Posted by RNMarsh View Post
does that matter? The current discussions are great.
How is it called, how to enter it?
__________________
The Devil is not so terrible as his math model is!
  Reply With Quote
Old 10th August 2012, 09:56 PM   #25984
RNMarsh is offline RNMarsh  United States
diyAudio Member
 
RNMarsh's Avatar
 
Join Date: May 2012
Location: 2457 Cascade Trail; Cool, CA. 95614
Quote:
Originally Posted by bcarso View Post
No --- only that one might suppose that FT had initiated the thing based on the name of it. In fact he told me he expressed some reticence when he found out about it, but agreed to participate. Despite having retired from Harman, he's busier than ever.
What is he up to these days that keeps him so busy? ? Going to write a book, perhaps?
  Reply With Quote
Old 10th August 2012, 10:01 PM   #25985
RNMarsh is offline RNMarsh  United States
diyAudio Member
 
RNMarsh's Avatar
 
Join Date: May 2012
Location: 2457 Cascade Trail; Cool, CA. 95614
Quote:
Originally Posted by Wavebourn View Post
How is it called, how to enter it?
"Audio Test & Measurement Engineering Group"

The last couple dozen emails are pretty interesting --

Go to LINKEDIN and sign up, first, then find the forum inside
  Reply With Quote
Old 10th August 2012, 10:36 PM   #25986
gpapag is offline gpapag  Greece
diyAudio Member
 
gpapag's Avatar
 
Join Date: Nov 2002
Location: Athens-Greece
Quote:
Originally Posted by RNMarsh View Post
No need to... I made the straw man to bring up the point. I use FFt/THd/MLSSA/IM et al. But, I am leaning to finding correlations. I think my input has demonstarated that.

On this forum and this DIY site there are lots of fft graphs of someone's favorite design. So, they go back and forth on listening and fft data or IM or what-ever. Without correlation.

Is this nieve to ask you/others here to try and think about doing tests that do correlate better or even easier? If we dont or cant, who will? Are we doomed to this situation?

Is anyone here capable of designing test equipment that can correlate better? What would we need to do that? Or, tests that do with what we have? Does anyone even care?

Thx, Dick

Quote:
Originally Posted by jcx View Post
measures that correlate with listening impressions will require someone to start presenting Psychoacoustic Science informed, controlled, Blinded listening tests with positive results correlating with circuit or waveform features

so far the very 1st step (precondition really) appears to be a insurmountable hurdle for the "subjectivist" Audiophile community


we do have the GedLee Metric - rarely brought up but actually has some human test data: Perception


I would like to ask if there is a way to derive the Gedlee Metric of the DUT from the FFT (amplitude and phase of the harmonics) of the output (OK at some different signal levels too)?

http://www.gedlee.com/downloads/THD_.pdf

George
__________________
["Second Law is a bitch." - SY] ["The Road To Heaven:Specify the performance & accept the design. The Road To Hell:Specify the design & accept the performance"-Bruno Putzeys]
  Reply With Quote
Old 10th August 2012, 10:47 PM   #25987
fas42 is online now fas42  Australia
diyAudio Member
 
fas42's Avatar
 
Join Date: Jun 2012
Location: NSW, Australia
Blog Entries: 11
Quote:
Originally Posted by Pano View Post
Maybe. It may depend on the skill of the engineer and producer. I've heard some surprising multi-track pop rock mixes that had great space and realism to them. Rare, tho.
This is where the big breakthrough in achieving highest quality audio replay can come about ... when a system truly comes together in every aspect, then all, I repeat, all, pop rock mixes have "great space and realism". In fact, many such recordings become absolutely "huge", the level of detail and the intricate nature of their composition is fully revealed, and they are a marvel to behold ...

Frank
  Reply With Quote
Old 10th August 2012, 10:58 PM   #25988
diyAudio Member
 
Wavebourn's Avatar
 
Join Date: Sep 2006
Location: Pleasant Hill, CA
Send a message via Skype™ to Wavebourn
Quote:
Originally Posted by RNMarsh View Post
"Audio Test & Measurement Engineering Group"

The last couple dozen emails are pretty interesting --

Go to LINKEDIN and sign up, first, then find the forum inside
Hmm...


Sorry, there are no group results matching your search criteria
Audio Test & Measurement Engineering Group:

Looking for people, jobs or companies?
Also try:

Check your spelling
Use more general keywords
Create a Group




__________________
The Devil is not so terrible as his math model is!
  Reply With Quote
Old 10th August 2012, 11:17 PM   #25989
bcarso is offline bcarso  United States
diyAudio Member
 
Join Date: May 2005
Location: Canoga Park, California
Quote:
Originally Posted by RNMarsh View Post
What is he up to these days that keeps him so busy? ? Going to write a book, perhaps?
The publisher is pushing for a second edition of Sound Reproduction. He's active on various standards committees including SMPTE (who have now embraced AES involvment) and also lectures a lot.
  Reply With Quote
Old 10th August 2012, 11:46 PM   #25990
diyAudio Member
 
Wavebourn's Avatar
 
Join Date: Sep 2006
Location: Pleasant Hill, CA
Send a message via Skype™ to Wavebourn
Found it. Waiting for Greg Groeper to approve.
But anyway I have no budget for AP equipment.
__________________
The Devil is not so terrible as his math model is!
  Reply With Quote

Reply


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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



New To Site? Need Help?

All times are GMT. The time now is 03:12 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2