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Perception and Measurement of Headphone Sound Quality
Speedskater
post Apr 24 2013, 20:19
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Sean Olive has a new blog page.

"The Relationship between Perception and Measurement of Headphone Sound Quality"

http://seanolive.blogspot.com/2013/04/the-...eption-and.html


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DVDdoug
post Apr 26 2013, 01:02
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QUOTE
Having played with different kind of eq (minmum phase & linear phase) , I'm skeptical when you say that the phase shift are undetectable.
And I'm skeptical that it is detectable. wink.gif

To run an ABX test, you'd need an equalizer with "normal" setting and a "linear phase" setting. And, that switch/setting could not affect the EQ settings. I doubt that such an equalizer exists (at least in not hardware). It's not "fair" to compare two different equalizers. And of course to be accepted on this forum, the test has to be blind and otherwise in compliance with TOS #8.

I don't have a reference, but it's also my understanding that tests have been done with all-pass filters (filters that alter phase relationships without alterning frequency response).
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extrabigmehdi
post Apr 26 2013, 01:39
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QUOTE (DVDdoug @ Apr 26 2013, 00:02) *
To run an ABX test, you'd need an equalizer with "normal" setting and a "linear phase" setting. And, that switch/setting could not affect the EQ settings. I doubt that such an equalizer exists (at least in not hardware). It's not "fair" to compare two different equalizers. And of course to be accepted on this forum, the test has to be blind and otherwise in compliance with TOS #8.


There's the eq ddmf lp10, that allow to set the "amount" of phase separately for each frequency band. (i.e 0 for minimum phase, 1 for linear phase, and any values between).
Would you consider using such eq for comparison "fair" ?

This post has been edited by extrabigmehdi: Apr 26 2013, 01:55
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Posts in this topic
- Speedskater   Perception and Measurement of Headphone Sound Quality   Apr 24 2013, 20:19
- - benski   The headphones aren't specifically identified ...   Apr 24 2013, 20:35
|- - chicks   QUOTE (benski @ Apr 24 2013, 12:35) The h...   Apr 24 2013, 22:10
||- - benski   QUOTE (chicks @ Apr 24 2013, 16:10) QUOTE...   Apr 24 2013, 22:19
|- - solive   QUOTE (benski @ Apr 24 2013, 12:35) The h...   Apr 25 2013, 01:31
|- - chicks   QUOTE (solive @ Apr 24 2013, 17:31) You...   Apr 25 2013, 17:17
|- - solive   QUOTE (chicks @ Apr 25 2013, 09:17) QUOTE...   Apr 25 2013, 19:37
- - dhromed   QUOTE marketing B.S. (Before Science) he he he he   Apr 24 2013, 21:57
- - extrabigmehdi   It's obvious that the HP1 is the audeze, becau...   Apr 24 2013, 23:34
|- - solive   QUOTE (extrabigmehdi @ Apr 24 2013, 15:34...   Apr 25 2013, 01:39
- - IgorC   Interesting article. It will be even better with s...   Apr 25 2013, 01:44
- - godrick   I wonder which of the following is correct: hp1 -...   Apr 25 2013, 02:13
- - extrabigmehdi   Here is my guess, based on user comments only. hp...   Apr 25 2013, 02:57
- - dhromed   In practical terms, i.e. when buying some phones f...   Apr 25 2013, 09:16
|- - extrabigmehdi   QUOTE (dhromed @ Apr 25 2013, 08:16) In p...   Apr 25 2013, 12:58
|- - markanini   QUOTE (dhromed @ Apr 25 2013, 10:16) In p...   Apr 25 2013, 18:16
||- - xnor   QUOTE (markanini @ Apr 25 2013, 18:16) Al...   Apr 25 2013, 18:37
||- - markanini   QUOTE (xnor @ Apr 25 2013, 19:37) Your li...   Apr 25 2013, 19:25
|- - Nessuno   QUOTE (extrabigmehdi @ Apr 25 2013, 13:58...   Apr 25 2013, 21:46
|- - extrabigmehdi   QUOTE (Nessuno @ Apr 25 2013, 20:46) All ...   Apr 25 2013, 22:42
|- - Nessuno   QUOTE (extrabigmehdi @ Apr 25 2013, 23:42...   Apr 26 2013, 14:05
|- - markanini   QUOTE (Nessuno @ Apr 26 2013, 15:05) I me...   Apr 26 2013, 20:14
- - zheka   Dr. Olive dropped a few hints about identity of t...   Apr 25 2013, 17:01
|- - solive   QUOTE (zheka @ Apr 25 2013, 09:01) Dr. Ol...   Apr 25 2013, 19:20
- - xnor   I've seen him wearing K550's about a year ...   Apr 25 2013, 18:09
- - DVDdoug   QUOTE In practical terms, i.e. when buying some ph...   Apr 25 2013, 18:17
|- - solive   QUOTE (DVDdoug @ Apr 25 2013, 10:17) QUOT...   Apr 25 2013, 19:39
|- - extrabigmehdi   QUOTE (DVDdoug @ Apr 25 2013, 17:17) Head...   Apr 25 2013, 20:54
||- - pdq   QUOTE (extrabigmehdi @ Apr 25 2013, 15:54...   Apr 25 2013, 21:04
|- - Arnold B. Krueger   QUOTE (DVDdoug @ Apr 25 2013, 13:17) QUOT...   Apr 26 2013, 13:19
|- - Martel   QUOTE (DVDdoug @ Apr 25 2013, 19:17) Yes,...   Sep 12 2013, 08:24
|- - Nessuno   QUOTE (Martel @ Sep 12 2013, 09:24) QUOTE...   Sep 12 2013, 09:55
|- - markanini   QUOTE (Martel @ Sep 12 2013, 09:24) QUOTE...   Sep 12 2013, 10:01
- - DVDdoug   QUOTE The website innerfidelity provide different ...   Apr 25 2013, 21:47
- - greynol   If your pinna doesn't affect the sound when we...   Apr 25 2013, 23:04
- - xnor   From my experience phase is really a non-issue in ...   Apr 25 2013, 23:13
- - extrabigmehdi   QUOTE (greynol @ Apr 25 2013, 22:04) If y...   Apr 26 2013, 00:37
- - DVDdoug   QUOTE Having played with different kind of eq (min...   Apr 26 2013, 01:02
|- - extrabigmehdi   QUOTE (DVDdoug @ Apr 26 2013, 00:02) To r...   Apr 26 2013, 01:39
- - xnor   For all intents and purposes single driver headpho...   Apr 26 2013, 02:29
|- - extrabigmehdi   QUOTE (xnor @ Apr 26 2013, 01:29) For all...   Apr 26 2013, 12:30
|- - xnor   QUOTE (extrabigmehdi @ Apr 26 2013, 12:30...   Apr 26 2013, 13:46
|- - extrabigmehdi   QUOTE (xnor @ Apr 26 2013, 12:46) so yes,...   Apr 26 2013, 15:58
||- - xnor   QUOTE (extrabigmehdi @ Apr 26 2013, 15:58...   Apr 26 2013, 19:03
|- - Arnold B. Krueger   QUOTE (xnor @ Apr 26 2013, 08:46) But sur...   Apr 26 2013, 16:26
- - markanini   extrabigmehdi, youre not getting it. Just stop.   Apr 26 2013, 13:30
- - xnor   Imaging with stereo recordings in headphones is a ...   Sep 12 2013, 10:54


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