![]() |
Frequency response of the ear
I was thinking about doing some dummy head recording and the effect on
frequency response of using an electret capsule in a model of an ear, compared to just placing it on the surface of a head-sized sphere. Any thoughts before I start moulding body parts in plaster? -- Eiron. |
Frequency response of the ear
"Eiron" I was thinking about doing some dummy head recording ** Your own head would be the obvious & ideal candidate ... and the effect on frequency response of using an electret capsule in a model of an ear, compared to just placing it on the surface of a head-sized sphere. ** Use ears just like Mr Spock's, for out of this world sound quality. Any thoughts before I start moulding body parts in plaster? ** Like mommy said - get your hands of it. Keep them off. ...... Phil |
Frequency response of the ear
"Eiron" wrote in message
I was thinking about doing some dummy head recording and the effect on frequency response of using an electret capsule in a model of an ear, compared to just placing it on the surface of a head-sized sphere. Dummy head recording is very old news. It can only be reasonably be played on headphones. Any thoughts before I start moulding body parts in plaster? Do some homework, first. Google gives 100,000 hits for "dummy head recording". |
Frequency response of the ear
On Thu, 16 Apr 2009 09:24:38 -0400, "Arny Krueger"
wrote: I was thinking about doing some dummy head recording and the effect on frequency response of using an electret capsule in a model of an ear, compared to just placing it on the surface of a head-sized sphere. Dummy head recording is very old news. It can only be reasonably be played on headphones. Any thoughts before I start moulding body parts in plaster? Do some homework, first. Google gives 100,000 hits for "dummy head recording". But not much on dummy head recording using a modeled ear cavity. If you want to go a little beyond a glib put-down, Google has interesting stuff on "ear acoustics" such as: "Theoretical and applied external ear acoustics Authors: B B Ballachanda The external ear (pinna and earcanal) plays a major role in transforming acoustic signals from free field to the tympanic membrane in humans. It acts as a filter to reduce low frequencies, a resonator to enhance mid frequencies (2.0 to 7.0 kHz), and a direction-dependent filter at high frequencies to augment spatial perception. The external ear transfer function is altered by variations in the physical dimension of the external ear either due to individual differences or due to mechanical obstructions such as blockages, hearing aid placement, perforation of the tympanic membrane, and use of insert earphone. It is significant that any change in the characteristics of the acoustic signal can produce considerable disparity in within- and between-individual responses. The present paper examines published studies on sound pressure transfer function provided by the external ear in humans. Journal of the American Academy of Audiology" The microphone you use will already be in a housing, designed to suit the particular transducer used. Its "ear" if you like. So you'd be putting an ear inside another ear. Maybe pointless? But this shouldn't stop you trying, if the subject interests you. |
Frequency response of the ear
The interesting thing is this. You do not want two ears do you, that is two
on each side. if you mount microphones inside ears, surely this is going to be what will end up as far as you are concerned, unless you intend to plumb the output into your brain. The main thing about the ear is that it distorts very badly as its non linear. This is why you hear things four times as loud as only twice as loud. If your ears were linear, then you would not hear quiet things at all. So dummy heads can be quite interesting, but the holy grail is not what you may think it is. Brian -- Brian Gaff - Note:- In order to reduce spam, any email without 'Brian Gaff' in the display name may be lost. Blind user, so no pictures please! "Eiron" wrote in message ... I was thinking about doing some dummy head recording and the effect on frequency response of using an electret capsule in a model of an ear, compared to just placing it on the surface of a head-sized sphere. Any thoughts before I start moulding body parts in plaster? -- Eiron. |
Frequency response of the ear
Eiron wrote: I was thinking about doing some dummy head recording and the effect on frequency response of using an electret capsule in a model of an ear, compared to just placing it on the surface of a head-sized sphere. Any thoughts before I start moulding body parts in plaster? If you model the ear's shape then you'll double the effect when listening to the recording. Not required therefore I'd say. Graham |
Frequency response of the ear
Eeyore wrote:
Eiron wrote: I was thinking about doing some dummy head recording and the effect on frequency response of using an electret capsule in a model of an ear, compared to just placing it on the surface of a head-sized sphere. Any thoughts before I start moulding body parts in plaster? If you model the ear's shape then you'll double the effect when listening to the recording. Not required therefore I'd say. Surely not if you're listening on in-ear phones. Whatever effect the external ear produces, you only want it to happen once. So perhaps a dummy-head microphone with realistic ears would be better for in-ear phones, and one without ears would be better for full-size phones. -- Eiron. |
Frequency response of the ear
"Eiron" wrote in message ... I was thinking about doing some dummy head recording and the effect on frequency response of using an electret capsule in a model of an ear, compared to just placing it on the surface of a head-sized sphere. Any thoughts before I start moulding body parts in plaster? -- Eiron. Why get plaster in your hair? We're all inquisitive, but true innovation is the rarest of beasts - just get your credit card out... http://neumann.com/?lang=en&id=curre..._descript ion |
Frequency response of the ear
In article ,
Eiron wrote: I was thinking about doing some dummy head recording and the effect on frequency response of using an electret capsule in a model of an ear, compared to just placing it on the surface of a head-sized sphere. Years ago when dummy head recording was popular I attended a demonstration where all sorts of techniques had been used - including a real skull. And to be perfectly honest the standard two omnis spaced apart the same sort of distance as ears and separated by a disc approximating to a cross sectional of a head worked as well as anything. If you try and reproduce what the ear does you'll double up on that effect when listening - as the ear isn't linear. -- *Virtual reality is its own reward* Dave Plowman London SW To e-mail, change noise into sound. |
Frequency response of the ear
"Brian Gaffe" The main thing about the ear is that it distorts very badly as its non linear. ** Absolute ******** !!! Human ears are extremely LINEAR !!! Detecting 0.1% harmonic distortion ( 1 part in a *million* as a power level ) on a sine wave would not be possible otherwise. This is why you hear things four times as loud as only twice as loud. ** Rediculous false conclusion. How loud sounds seem is function of the brain. ....... Phil |
Frequency response of the ear
"Eiron" Eeysore wrote: If you model the ear's shape then you'll double the effect when listening to the recording. Not required therefore I'd say. Surely not if you're listening on in-ear phones. ** Nor the case with normal phones either. ...... Phil |
Frequency response of the ear
In article , Brian Gaff
wrote: The main thing about the ear is that it distorts very badly as its non linear. This is why you hear things four times as loud as only twice as loud. If your ears were linear, then you would not hear quiet things at all. I'm afraid the above may be confusing non linearity with sensitivity variations. The ear does have powerful response mechanisms that adjust the sensitivity of the sensors to adapt to changes in sound level. However this *isn't* the same thing as 'non linearity' in the way that term is usually applied, so need not cause 'distortion' in the usual sense of the term. And the processing the brain carries out takes these mechanisms into account. Hearing isn't a simple mechanical process. Slainte, Jim -- Change 'noise' to 'jcgl' if you wish to email me. Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html Audio Misc http://www.audiomisc.co.uk/index.html |
Frequency response of the ear
You cannot separate the brain from the ear so the whole argument is a bit
academic is it not? The reason you can hear differences is also due to the brain as a matter of fact. Brian -- Brian Gaff - Note:- In order to reduce spam, any email without 'Brian Gaff' in the display name may be lost. Blind user, so no pictures please! "Phil Allison" wrote in message ... "Brian Gaffe" The main thing about the ear is that it distorts very badly as its non linear. ** Absolute ******** !!! Human ears are extremely LINEAR !!! Detecting 0.1% harmonic distortion ( 1 part in a *million* as a power level ) on a sine wave would not be possible otherwise. This is why you hear things four times as loud as only twice as loud. ** Rediculous false conclusion. How loud sounds seem is function of the brain. ...... Phil |
Frequency response of the ear
Using in ear phones is terribly inaccurate as the fit and acoustic coupling
can change with facial movements and is pretty uncomfortable as well. The effect of the ear on over the ear phones can very much depend on the characteristics of the cavity produced. The big snag with binaural is that in a real sound field, your brain commands small head movements and thus can hear the differences as the position changes, with phones the brain cannot move the listening position unless you have some very odd phones. Brian -- Brian Gaff - Note:- In order to reduce spam, any email without 'Brian Gaff' in the display name may be lost. Blind user, so no pictures please! "Phil Allison" wrote in message ... "Eiron" Eeysore wrote: If you model the ear's shape then you'll double the effect when listening to the recording. Not required therefore I'd say. Surely not if you're listening on in-ear phones. ** Nor the case with normal phones either. ..... Phil |
Frequency response of the ear
Watch it I got shouted down when I pointed this out...
Brian -- Brian Gaff - Note:- In order to reduce spam, any email without 'Brian Gaff' in the display name may be lost. Blind user, so no pictures please! "Dave Plowman (News)" wrote in message ... In article , Eiron wrote: I was thinking about doing some dummy head recording and the effect on frequency response of using an electret capsule in a model of an ear, compared to just placing it on the surface of a head-sized sphere. Years ago when dummy head recording was popular I attended a demonstration where all sorts of techniques had been used - including a real skull. And to be perfectly honest the standard two omnis spaced apart the same sort of distance as ears and separated by a disc approximating to a cross sectional of a head worked as well as anything. If you try and reproduce what the ear does you'll double up on that effect when listening - as the ear isn't linear. -- *Virtual reality is its own reward* Dave Plowman London SW To e-mail, change noise into sound. |
Frequency response of the ear
In article ,
Brian Gaff wrote: The big snag with binaural is that in a real sound field, your brain commands small head movements and thus can hear the differences as the position changes, with phones the brain cannot move the listening position unless you have some very odd phones. It does, however, give the most convincing stereo for headphone listening. Can be very impressive. Unlike listening to conventional stereo on headphones. -- *One tequila, two tequila, three tequila, floor. Dave Plowman London SW To e-mail, change noise into sound. |
Frequency response of the ear
"Brian Gaffe" You cannot separate the brain from the ear ... ** More ridiculous BULL **** !!! **** off - you know nothing, TROLLING ASS !! ...... Phil |
Frequency response of the ear
Phil Allison wrote:
"Brian Gaffe" You cannot separate the brain from the ear ... ** More ridiculous BULL **** !!! **** off - you know nothing, TROLLING ASS !! ..... Phil Unlike separating brain from mouth and keyboard... -- Nick |
Frequency response of the ear
"Laurence Payne" wrote in message
On Thu, 16 Apr 2009 09:24:38 -0400, "Arny Krueger" wrote: I was thinking about doing some dummy head recording and the effect on frequency response of using an electret capsule in a model of an ear, compared to just placing it on the surface of a head-sized sphere. Dummy head recording is very old news. It can only be reasonably be played on headphones. Any thoughts before I start moulding body parts in plaster? Do some homework, first. Google gives 100,000 hits for "dummy head recording". But not much on dummy head recording using a modeled ear cavity. And that makes perfect sense, because the person listening to the recording listens through a *real* ear cavity. If you want to go a little beyond a glib put-down, Seems like it is very much on-target. Google has interesting stuff on "ear acoustics" such as: Umm, you just told the guy to go google. Like I just did. ;-) |
Frequency response of the ear
"Arny Krueger" Do some homework, first. Google gives 100,000 hits for "dummy head recording". ** Nope - its only 1750 hits for the phrase. ...... Phil |
Frequency response of the ear
Arny Krueger wrote:
Google has interesting stuff on "ear acoustics" such as: Umm, you just told the guy to go google. Like I just did. You can help people through http://lmgtfy.com. It creates a URL you can send them to help them learn to help themselves. Examples of uses: "What do you mean by free market?" http://tinyurl.com/dzyzdm "Pneumonoultramicroscopicsilicovolcanoconiosis ? What's that?" http://tinyurl.com/d7e4yq "What do you mean, 'no'?" http://tinyurl.com/cb2yed |
Frequency response of the ear
"Phil Allison" wrote in message ... "Arny Krueger" Do some homework, first. Google gives 100,000 hits for "dummy head recording". ** Nope - its only 1750 hits for the phrase. I get 1,730 http://www.moirac.adsl24.co.uk/dummy.jpg (I learned a long time ago to take Arnie's claims with a shovelful of salt - he's like a lot of people who try to *speak with authority* when most of the time they've no idea..!!! ;-) |
Frequency response of the ear
Eiron wrote: Eeyore wrote: Eiron wrote: I was thinking about doing some dummy head recording and the effect on frequency response of using an electret capsule in a model of an ear, compared to just placing it on the surface of a head-sized sphere. Any thoughts before I start moulding body parts in plaster? If you model the ear's shape then you'll double the effect when listening to the recording. Not required therefore I'd say. Surely not if you're listening on in-ear phones. Yuk ! How could you ? All that ear wax ! Besides aren't they pretty crap ? Graham |
Frequency response of the ear
Nick Gorham wrote: Phil Allison wrote: "Brian Gaffe" You cannot separate the brain from the ear ... ** More ridiculous BULL **** !!! **** off - you know nothing, TROLLING ASS !! ..... Phil Unlike separating brain from mouth and keyboard... Excellent response ! ;~) Grham |
Frequency response of the ear
"Keith Git" "Phil Allison" "Arny Krueger" Do some homework, first. Google gives 100,000 hits for "dummy head recording". ** Nope - its only 1750 hits for the phrase. I get 1,730 ** Google is censoring about 20 hits from your delicate eyes .... (I learned a long time ago to take Arnie's claims with a shovelful of salt - he's like a lot of people who try to *speak with authority* when most of the time they've no idea..!!! ;-) ** Arny is a compewter geek by nature and inclination. Like any computer, he can only manipulate the data - but not illuminate it. ....... Phil |
Frequency response of the ear
"Phil Anus Hole" wrote ** Google is censoring about 20 hits from your delicate eyes .... That'll be my other half - she's probably got it set for *no titties* or somesuch..... (I learned a long time ago to take Arnie's claims with a shovelful of salt - he's like a lot of people who try to *speak with authority* when most of the time they've no idea..!!! ;-) ** Arny is a compewter geek by nature and inclination. Like any computer, he can only manipulate the data - but not illuminate it. The evidence is he can't even do that accurately.... |
Frequency response of the ear
In article ,
Keith G wrote: "Phil Anus Hole" wrote ** Google is censoring about 20 hits from your delicate eyes .... That'll be my other half - she's probably got it set for *no titties* or somesuch..... (I learned a long time ago to take Arnie's claims with a shovelful of salt - he's like a lot of people who try to *speak with authority* when most of the time they've no idea..!!! ;-) ** Arny is a compewter geek by nature and inclination. Like any computer, he can only manipulate the data - but not illuminate it. The evidence is he can't even do that accurately.... If you Google dummy head recording without the quotation marks you get more than 100,000 hits. I'm sure everyone will be fascinated by this. -- *It's a thankless job, but I've got a lot of Karma to burn off Dave Plowman London SW To e-mail, change noise into sound. |
Frequency response of the ear
On Thu, 16 Apr 2009 23:02:36 +0100, "Dave Plowman (News)"
wrote: Years ago when dummy head recording was popular I attended a demonstration where all sorts of techniques had been used - including a real skull. And to be perfectly honest the standard two omnis spaced apart the same sort of distance as ears and separated by a disc approximating to a cross sectional of a head worked as well as anything. Did you also hear the Sennheiser record with one side in English and the other in German? Interestingly, for me the effect of the German side was much less than for the English side - probably because the spoken hints were no longer present. (I did not speak any German at that time.) The power of the mind to affect perception never ceases to amaze me. ;-) -- Chris Isbell Southampton, UK |
Frequency response of the ear
"Dave Plowman (News)" wrote in message ... In article , Keith G wrote: "Phil Anus Hole" wrote ** Google is censoring about 20 hits from your delicate eyes .... That'll be my other half - she's probably got it set for *no titties* or somesuch..... (I learned a long time ago to take Arnie's claims with a shovelful of salt - he's like a lot of people who try to *speak with authority* when most of the time they've no idea..!!! ;-) ** Arny is a compewter geek by nature and inclination. Like any computer, he can only manipulate the data - but not illuminate it. The evidence is he can't even do that accurately.... If you Google dummy head recording without the quotation marks you get more than 100,000 hits. I'm sure everyone will be fascinated by this. I wouldn't bank on it..... |
Frequency response of the ear
"Dave Plowman (News)" wrote: If you Google dummy head recording without the quotation marks you get more than 100,000 hits. 'about' 116,000 here I'm sure everyone will be fascinated by this. 1,760 with the quote marks. Probably the number is changing because of the natter in here. Graham |
Frequency response of the ear
Phil Allison wrote: "Arny Krueger" Do some homework, first. Google gives 100,000 hits for "dummy head recording". ** Nope - its only 1750 hits for the phrase. Try it now you blind bat ! Graham |
Frequency response of the ear
"Keith G" wrote in message
"Phil Anus Hole" wrote That'll be my other half - she's probably got it set for *no titties* or somesuch..... (I learned a long time ago to take Arnie's claims with a shovelful of salt - he's like a lot of people who try to *speak with authority* when most of the time they've no idea..!!! ;-) Joke, as the truth is quite definately otherwise. ** Arny is a compewter geek by nature and inclination. Phil is just upset that I invented ABX tests of of audio equipment, while he could do no better than write an article praising it. Like any computer, he can only manipulate the data - but not illuminate it. The evidence is he can't even do that accurately.... Particularly when people entertain themselves by misinterpreting what was written. By this time someone has figured out that the quotes were there to delimit the search text from the rest of the text, not to define the actual search string. |
Frequency response of the ear
"Arny Krueger" wrote in message ... "Keith G" wrote in message "Phil Anus Hole" wrote That'll be my other half - she's probably got it set for *no titties* or somesuch..... (I learned a long time ago to take Arnie's claims with a shovelful of salt - he's like a lot of people who try to *speak with authority* when most of the time they've no idea..!!! ;-) Joke, as the truth is quite definately otherwise. Might want to check your spelling there (no typo - keys too far apart).... Particularly when people entertain themselves by misinterpreting what was written. By this time someone has figured out that the quotes were there to delimit the search text from the rest of the text, not to define the actual search string. It's your own fault, you should have made your point more clearly with the phrase 'sans quotes' or somesuch - or maybe just have tidied your search up in the first place? |
Frequency response of the ear
"Arny Krueger" "Phil Allison" ** Arny is a compewter geek by nature and inclination. Like any computer, he can only manipulate the data - but not illuminate it. Phil is just upset that I invented ABX tests of of audio equipment, while he could do no better than write an article praising it. ** Well, goodness me - Arny has just provided us all with a perfect example of exactly what I just complained about him. I did NOT write that article on the ESP site in order to praise ABX testing, but rather to BURY it !! --------------------------- Here is the link, please read it and if at all possible carry out the simple test it describes. http://sound.westhost.com/absw.htm Once set up, the test result is immediately apparent, definitive and convincing to all but the congenitally mentally retarded - naturally, the latter group includes all you audiophools. This is of course entirely unlike the long, tedious, complicated & ultimately unconvincing statistical method used by the literal thinking Arny. ...... Phil |
Frequency response of the ear
On Sat, 18 Apr 2009 12:24:00 +1000, "Phil Allison"
wrote: ** Well, goodness me - Arny has just provided us all with a perfect example of exactly what I just complained about him. I did NOT write that article on the ESP site in order to praise ABX testing, but rather to BURY it !! But what you SAID was: "Many of you will know about the ABX system for doing audio comparisons. No doubt it is a very fine piece of design but out of reach for the average person. Some years ago I felt that a much simpler device would at least allow me to do comparisons on power amplifiers while the music played in a similar way to ABX." You praise ABX but find it too expensive to set up. Your use of "at least" states that you see your method as a cut-price alternative which is however adequate for some purposes. Though I really don't know why I bother when you children start bickering :-) |
Frequency response of the ear
"Laurence Payne" "Phil Allison" ** Well, goodness me - Arny has just provided us all with a perfect example of exactly what I just complained about him. I did NOT write that article on the ESP site in order to praise ABX testing,but rather to BURY it !! But what you SAID was: "Many of you will know about the ABX system for doing audio comparisons. No doubt it is a very fine piece of design but out of reach for the average person. Some years ago I felt that a much simpler device would at least allow me to do comparisons on power amplifiers while the music played in a similar way to ABX." You praise ABX but find it too expensive to set up. ** Nothing like what I said at all !! Most folk have heard of ABX, so I mentioned it as a reference WITHOUT commenting on how or how well it works. Your use of "at least" states that you see your method as a cut-price alternative ** Nothing like what I said. The " at least " refers to power amplifiers being the most suitable subject for my test - and they were the only things I ( and most folk ) wanted to compare. The lower cost is simply due to the elegance of the concept, which is that of an instant, seamless changeover at the whim of the listener. This is of course ENTIRELY unlike the long, tedious, complicated & ultimately unconvincing statistical method used by the literal thinking Arny with his original ABX contraption. So it buries it. ....... Phil |
Frequency response of the ear
On Sun, 19 Apr 2009 14:10:02 +1000, "Phil Allison"
wrote: But what you SAID was: "Many of you will know about the ABX system for doing audio comparisons. No doubt it is a very fine piece of design but out of reach for the average person. Some years ago I felt that a much simpler device would at least allow me to do comparisons on power amplifiers while the music played in a similar way to ABX." You praise ABX but find it too expensive to set up. ** Nothing like what I said at all !! Most folk have heard of ABX, so I mentioned it as a reference WITHOUT commenting on how or how well it works. Some people might not understand that calling it a "fine piece of design" meant you didn't like it :-) In fact, if you cut the veiled (and not-veiled) sarcasm and other flowery language out of the whole article, it would be a great improvement. The sad thing is, you're probably right. But you come across as a sad amateur with an obsession. |
Frequency response of the ear
"Laurence Payne in the Arse Fool " But what you SAID was: "Many of you will know about the ABX system for doing audio comparisons. No doubt it is a very fine piece of design but out of reach for the average person. Some years ago I felt that a much simpler device would at least allow me to do comparisons on power amplifiers while the music played in a similar way to ABX." You praise ABX but find it too expensive to set up. ** Nothing like what I said at all !! Most folk have heard of ABX, so I mentioned it as a reference WITHOUT commenting on how or how well it works. Some people might not understand that calling it a "fine piece of design" meant you didn't like it :-) ** The ABX switching box is a device ( ie a piece of design) - and since I have never seen one I expressed no personal opinion about it. However, I made NO mention WHATEVER of the ABX testing procedure - so it is utterly ** FALSE and ABSURD ** to claim that I praised it. Comes as no surprise to me that smug, congenital ****heads like Payne and Arny saw no problem in doing exactly that. In fact, if you cut the veiled (and not-veiled) sarcasm and other flowery language out of the whole article, ** I used no " flowery " language at all. The veiled sarcasm ( contained in several warnings ) is well justified, in light of actual experience using the A-B switching box device with other people. Here is the article again: http://sound.westhost.com/absw.htm The last thing most folk want ( especially rabid audiophools) is to have their long held beliefs & golden ear pronouncements proved * completely wrong * - and so be made to look a damn fool by anyone or anything. So, I gave fair warning to all and hoped that would goad the bravest souls who read the item into action. Cos it is a 100% certainty that no posturing, gutless audiophool scumbags ever would. ...... Phil |
Frequency response of the ear
On Sun, 19 Apr 2009 20:58:33 +1000, "Phil Allison"
wrote: Most folk have heard of ABX, so I mentioned it as a reference WITHOUT commenting on how or how well it works. Some people might not understand that calling it a "fine piece of design" meant you didn't like it :-) ** The ABX switching box is a device ( ie a piece of design) - and since I have never seen one I expressed no personal opinion about it. However, I made NO mention WHATEVER of the ABX testing procedure - so it is utterly ** FALSE and ABSURD ** to claim that I praised it. Comes as no surprise to me that smug, congenital ****heads like Payne and Arny saw no problem in doing exactly that. Why don't you write half a page of unemotional reasoned argument on why you think the ABX method is flawed and/or unnecessarily complicated? Then we just might be inclined to take you seriously. Or you could serve up some more personal abuse. Would that be more fun? :-) |
All times are GMT. The time now is 12:15 PM. |
Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.0.0
Copyright ©2004-2006 AudioBanter.co.uk