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High Efficiency Speaker Asylum: Re: We disagree on a couple of points by EGeddes Need speakers that can rock with just one watt? You found da place. |
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In Reply to: Re: We disagree on a couple of points posted by tomservo on February 20, 2006 at 14:52:28:
Some months back I read an interesting book called "Environmental Acoustics" (which is not about sound outdoors). Its theme was a discussion of the context of acoustic testing. One of the most interesting points that were made is the difference between instrinsic accuracy and extrinsic accuracy.Intrinsic accuracy is the accuracy of the test, the signal accuracy, the control-ability of the test, the variables, things intrinsic to the test.
Extrinsic accuracy is how well the test can be applied to the world which its results were meant to support.
The use of sine waves is notably intrinsically accurate because they have a high degree of accuracy within the test. But their extrinsic accuracy is of questionable value since listening to sine wave is a very uncommon event - almost unknow outside of acoustic tests. I discount tests that use sine waves or noise for this reason, they are extrinsically inaccurate.
This is why I never use sine waves or noise, but always music, usually passages selected for applicability of the specific test.
Rather than quote my tests to you, it might be prudent to read them for yourself. Then at least you'll know what it is that you are disagreeing with. And I told my wife that I would correct something that I wrote in a past post. The actual subjective test was presented as "Lee and Geddes", not "Geddes and Lee". The "Geddes and Lee" paper was on the theory, background and proposed metric for the perception of nonlinear distortion.Tom, its also difficult being the one who has to tell people that there baby is ugly. Of course you and many others here don't want to hear what I have to say, it doesn't support your positions and beliefs very well. But shooting the messenger has never been an effective way to discover the truth.
It's OK for me to give my opinion when it is in agreement with everyone elses, but if I disagree then all of a sudden I'm an opinionated slob.
It's far easier to agree with everyone all the time. It's a bit more difficult to shed light on the deepest darkest recesses of our beliefs.
Earl Geddes
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Topic - Tractrix vs. hypex vs. conical - corrected (long with pictures) - Volvotreter 08:11:26 02/18/06 ( 85)
- driver parameters off ?... - coolin 07:32:17 02/19/06 ( 2)
- Modeling - dwkurfma 11:39:54 02/20/06 ( 0)
- Re: driver parameters off ?... - Volvotreter 10:54:09 02/19/06 ( 0)
What I said before - EGeddes 19:08:35 02/18/06 ( 62)
- Re: What I said before -- ultra what-if question - freddyi 05:57:15 02/19/06 ( 61)
- Re: What I said before -- ultra what-if question - Scholl 14:00:03 02/19/06 ( 0)
- Love "GodZilla vs. Stone Cold" :-) - Homme De Terre 13:20:07 02/19/06 ( 1)
- Addendum on "IE" - Homme De Terre 13:40:34 02/19/06 ( 0)
LF horns - EGeddes 08:04:15 02/19/06 ( 57)
- Bass horns work great - Kloss 04:47:26 02/20/06 ( 0)
Re: LF horns - tomservo 15:59:56 02/19/06 ( 35)
- We disagree on a couple of points - EGeddes 16:49:34 02/19/06 ( 34)
- Wait just a minute.... - Jon Risch 17:39:44 02/23/06 ( 3)
- Re: Wait just a minute.... - EGeddes 18:44:12 02/23/06 ( 0)
- Re: Wait just a minute.... - EGeddes 18:40:11 02/23/06 ( 1)
- I read it again, and.... - Jon Risch 19:31:21 02/26/06 ( 0)
JAES Article - dwkurfma 20:31:01 02/19/06 ( 4)
- Re: JAES Article - EGeddes 05:40:46 02/20/06 ( 3)
- Re: JAES Article - dwkurfma 11:32:51 02/20/06 ( 2)
- Good paper - EGeddes 12:06:48 02/20/06 ( 0)
- Re: JAES Article - EGeddes 11:59:35 02/20/06 ( 0)
Re: We disagree on a couple of points - tomservo 20:11:02 02/19/06 ( 24)
- One more thing - EGeddes 06:54:53 02/20/06 ( 7)
- so the only right way is a CD horn with your 15in bass cab? - Kloss 04:04:58 02/21/06 ( 6)
- Its the best way - EGeddes 05:36:59 02/21/06 ( 5)
- Good, I'll buy a Peavey - Tom Brennan 06:40:03 02/21/06 ( 4)
- Actually - Jon Risch 16:54:01 02/23/06 ( 2)
- Yeah, but those are $1400 EACH! - Ivan303 16:58:39 02/24/06 ( 1)
- Naw - Jon Risch 10:06:03 02/27/06 ( 0)
- Thxs Tom was going to get EGeddes loudspeakers - Kloss 08:00:48 02/21/06 ( 0)
Re: We disagree on a couple of points - EGeddes 05:37:42 02/20/06 ( 15)
- Re: We disagree on a couple of points - tomservo 06:52:44 02/20/06 ( 14)
- Re: We disagree on a couple of points - EGeddes 07:04:16 02/20/06 ( 13)
- Re: We disagree on a couple of points - tomservo 11:18:26 02/20/06 ( 12)
- Re: We disagree on a couple of points - EGeddes 11:57:31 02/20/06 ( 11)
- Re: We disagree on a couple of points - eso 15:29:00 02/20/06 ( 1)
- Re: We disagree on a couple of points - EGeddes 15:58:36 02/20/06 ( 0)
- Re: We disagree on a couple of points - tomservo 14:52:28 02/20/06 ( 8)
- Re: We disagree on a couple of points - EGeddes 02/20/06 16:19:03 02/20/06 ( 7)
- Re: We disagree on a couple of points - tomservo 17:58:56 02/20/06 ( 6)
- Re: We disagree on a couple of points - EGeddes 18:29:05 02/20/06 ( 5)
- Re: We disagree on a couple of points - tomservo 09:37:17 02/22/06 ( 1)
- Re: We disagree on a couple of points - EGeddes 11:00:41 02/22/06 ( 0)
- Re: A words on context, or lack thereof... - eso 22:29:04 02/20/06 ( 0)
- a couple of dumb questions - pg 20:06:00 02/20/06 ( 1)
- This is a subjective question - EGeddes 05:33:59 02/21/06 ( 0)
Re: "no way to make a "good" and practical LF horn." - Ivan303 09:37:42 02/19/06 ( 1)
- Re: "no way to make a "good" and practical LF horn." - EGeddes 12:55:48 02/19/06 ( 0)
Re: LF horns - Tom Brennan 09:12:08 02/19/06 ( 17)
- First off - EGeddes 13:09:20 02/19/06 ( 7)
- Re: First off - Tom Brennan 15:02:14 02/19/06 ( 6)
- Thanks Tom - EGeddes 16:11:54 02/19/06 ( 0)
- Geez Tom.... - Homme De Terre 15:32:17 02/19/06 ( 4)
- Re: Geez Tom.... - Tom Brennan 18:19:15 02/19/06 ( 3)
- Re: I still miss Mike Bates and Romy. - Ivan303 19:30:52 02/19/06 ( 1)
- Re: I still miss Mike Bates and Romy. - eso 21:58:57 02/21/06 ( 0)
- Manfred actually means "Man of Peace", did you know that? :-)(nt) - Homme De Terre 18:23:11 02/19/06 ( 0)
Re: LF horns - Rapid 10:03:23 02/19/06 ( 3)
- Re: LF horns - Tom Brennan 11:33:39 02/19/06 ( 2)
- Re: LF horns - Steve Eddy 11:48:31 02/19/06 ( 1)
- Toupee...err...touché. :-D (nt) - Homme De Terre 13:23:47 02/19/06 ( 0)
Re: I just got out the 60lb jackhammer... - eso 09:34:00 02/19/06 ( 4)
- Re: I just got out the 60lb jackhammer... - Don Bunce 18:16:11 02/21/06 ( 1)
- Re: I just got out the 60lb jackhammer... - eso 21:53:41 02/21/06 ( 0)
Iam glad this forum exists to save me from myself. - Kloss 05:18:09 02/20/06 ( 0)
Re: I just got out the 60lb jackhammer...stay-free mini-pad? - freddyi 09:39:13 02/19/06 ( 0)
Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) - John Sheerin 14:43:46 02/18/06 ( 0)
Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) - eso 08:52:54 02/18/06 ( 10)
- Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) - EGeddes 19:04:11 02/18/06 ( 5)
- Measuring horns... - Rapid 03:23:50 02/19/06 ( 4)
- Re: Measuring horns... - EGeddes 07:57:34 02/19/06 ( 3)
- Interesting... - Rapid 09:57:28 02/19/06 ( 2)
- Re: Interesting... - EGeddes 13:00:22 02/19/06 ( 1)
- Thanks (nt) - Rapid 13:23:15 02/19/06 ( 0)
Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) - Volvotreter 12:28:22 02/18/06 ( 0)
Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) - freddyi 09:03:27 02/18/06 ( 2)
- Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) - eso 09:11:51 02/18/06 ( 1)
- Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) - freddyi 09:31:51 02/18/06 ( 0)
Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) - Walt 08:24:28 02/18/06 ( 6)
- second generation pictures? - coolin 07:50:16 02/19/06 ( 1)
- Never mind.. - coolin 07:53:34 02/19/06 ( 0)
Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) - Volvotreter 12:32:44 02/18/06 ( 2)
- Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) - Walt 14:17:42 02/18/06 ( 1)
- Hi walt - toxicport.e 17:33:38 02/18/06 ( 0)
Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) - freddyi 08:37:16 02/18/06 ( 0)