> there are people out there with laser scanners that can catch an item in
3-d - kind of inverse to a 3-d printer (in fatc, that's what they use
them for)
>
How important is:
a) behind the pinna
b) the ear canal
?
Scanning might be poor at these ('shadow', etc.).
Behind the pinna seems less important that inside the 'bowl' of the pinna
... but if reflections off the chest are important, then I wouldn't rules
out something happening in the space between the back of the pinna and the
side of the head. (Not my field.)
Because of the potential problems of
-leaving something behind in the ear canal
-absorption of toxicants through the ear (maybe a bit remote, but do
remember one ENT guy detailing the risks of using antiseptics for
irrigation (though he had to countenance ruptured drums and generally
imflammed tissues ...)).
and, if you want the mic capsule down a realistic canal, and at the level*
of the real ear drum,
then,
the two-part putty that hearing aid fitters use would seem to be the
answer ... possibly the only answer (for that part of the head, at
least).
Just thinking aloud ... there must be some serious gaps in the above ....
Michael
* or shoud that be 'at the level of the diaphragm in the playback earbud'
???
> Yes, your own head would be way better - for you - than a generic one.
>
> best way to explore - reasonable-quality binaural mic set, listened back
over good quality earphone set (not headphones)
> Dr Peter Lennox
>
> School of Technology,
> Faculty of Arts, Design and Technology
> University of Derby, UK
> e: p.len...@derby.ac.uk
> t: 01332 593155
> ________________________________________
> From: Sursound [sursound-boun...@music.vt.edu] On Behalf Of Lasse Munk
[lassemunkm...@gmail.com]
> Sent: 26 November 2014 20:56
> To: s...@mchapman.com; Surround Sound discussion group
> Subject: Re: [Sursound] Molding ears / head - materials
>
> Hi all!
>
> I'm talking with one of the mask-making girls, but just wanted to help
out a little bit - she was not entirely sure how to make an accurate
replica of my head :)
>
> I will look more into the alginate, latex and medical sillicone.. thanks
a bunch! :)
>
> Anyone made A/B testing with e.g. a neumann head and a replica of own
ears.. are there a big difference?
>
> thanks!
> Lasse (a guy by the way ;)
>
> Michael Chapman wrote:
>>> The resulting head should probably be in Latex, how to take the original
>>> imprint ? maybe plaster of paris?
>>
>> No way.
>> Unless you know exactly what you are doing you risk serious (very serious)
>> burns.
>> (Plaster produces heat as it sets. The hotter it is, the faster it
sets. The faster it sets the more heat it produces. And so on.)
>>
>> Otherwise:
>> -Plaster of Paris (POP) bandages (which may be what Bo-Erik was referring
>> to),
>> -Alginate
>> are the common ones.
>>
>> POP bandages are relatively cheap, alginate not.
>> Alginate is good for detail (which you probably don't want (e.g. a
small ear piercing hole!)), bandages can be but requires skill.
>> Alginate requires a supporting shell or 'boat', bandages don't.
>>
>> Three main hurdles:
>>
>> You are 'ronde-bosse', that is to say this is not a relief/imprint, so you
>> need a multi part mould.
>>
>> The amount of hair (?skull cap, protect eyebrows, hope you have no
beard (sorry don't know Danish forenames, so apologies if that one is a
howler!)).
>>
>> Ears are, in my experience, impossible with bandages, and almost so
with alginate.
>> You may need _medical_ silicone (industrial silicone is not recommended
for skin contact ... and I'd be very wary of most things near the
auditory
>> nerve).
>> Those who fit hearing aids have two-part mixes for moulding canals.
Maybe do the ears by themselves and 'glue' them on a more crudely done
head ?
>>
>> Do contact me off list, if you wish.
>>
>> Michael (France)
>>
>>
>>
>>> Or your mask making makeup department students should know :-)
>>>
>>> BR Bo-Erik
>>>
>>> -----Original Message-----
>>> From: Sursound [mailto:sursound-boun...@music.vt.edu] On Behalf Of Lasse
>>> Munk
>>> Sent: den 26 november 2014 13:13
>>> To: Surround Sound discussion group
>>> Subject: [Sursound] Molding ears / head - materials
>>>
>>> Hi All,
>>>
>>> I would very much like to mold my own ears or make a
>>> dummyhead-replica-of-my-head .. i'm in a theater school with a
workshop where I can do a lot of things, but I'm in doubt which
materials that would be good to use for this task.
>>>
>>> Any ideas?
>>>
>>> All the best,
>>> Lasse
>>>
>>>
>>> --
>>> sound designer
>>> soundjuggling.com
>>> 06 68 50 95 97 (FR)
>>> 00 45 26 84 44 41 (DK)
>>>
>>>
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>>
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> --
> sound designer
> soundjuggling.com
> 06 68 50 95 97 (FR)
> 00 45 26 84 44 41 (DK)
>
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