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9. Re: Miniature Pseudo-SASS Array

Subject: 9. Re: Miniature Pseudo-SASS Array
From: "Klas Strandberg" klasstrandberg
Date: Mon Aug 13, 2012 2:49 pm ((PDT))
At 23:27 2012-08-13, you wrote:
>While we're on the subject of SASS noses, can anyone explain to me
>why the nose is tapered down on the top?

I have never thought of it as anything else than a mechanical issue.
The audio impact of the plastic cover can only have a marginal effect.

>And is there a generic name for this style of array? SASS is a
>commercial name, so I guess one should only call it a SASS if it's a
>genuine one.

I am not sure. I have never heard of it as an "acoustic principle".
The SASS was a patent by Crown which also included the PZM mounting
of the capsule.
(A diaphragm facing a hard surface). It is developed to hang on a
wall, or lay on a floor. In general that means a 6db gain at all
present frequencies (the SASS + the floor) and a bit more side at mid
and high frequencies caused by SASS reflections. Some level stereo at
similar frequencies is caused by the nose. I cannot imagine that the
proportions or foam material is that critical. Small changes in the
design will cause small changes of freq. handling.

Klas.


>Peter Shute
>
> >-----Original Message-----
> >From: 
> > On Behalf Of vickipowys
> >Sent: Tuesday, 14 August 2012 6:30 AM
> >To: 
> >Subject: Re: [Nature Recordists] Re: Miniature Pseudo-SASS Array
> >
> >
> >
> >Well-spotted Greg. Looking closely, I certainly agree that Klas's
> >SASS rig has the mics positioned wrongly, they need to be further out
> >by half to one inch. And ideally they should have the diaphragms
> >flush with the boundary. I had not been able to grasp why Klas
> >thought of the SASS sound as muffled, I have never found that to be
> >the case with SASS, except occasionally for a sound directly front on
> >with a SASS that has a 'square' nose rather than a tapered one.
>
>
>------------------------------------
>
>"While a picture is worth a thousand words, a
>sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.
>
>Yahoo! Groups Links
>
>
>
Telinga Microphones, Botarbo,
S-748 96 Tobo, Sweden.
Phone & fax int + 295 310 01
email: 
website: www.telinga.com









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