>Is the edge (top and bottom) diffraction of the cylinder detectable?
>It must cause a comb filter effect depending on the elevation angle?
Having flat endings and sharp edges caused some < 0,5 db comb effect
when no foam or fake fur was used. Therefore the tops and bottoms of
the SSM are rounded.
The differences between using a cylinder and using a globe were in
all ways less than 1 db and did not show more or less comb effect.
Using a rubber suspended alu body, instead of a plastic body,
improved unwanted resonances quite audibly.
The distance between the cylinders are adjustable about an inch, as
well as the sideways angles.
For the DIY people, there is an optional arrangement which allows
experimenting with distances and angles, jeckling disc's, noses or whatever=
.
A very similar construction was used for sound effects to a movie
which won the prestigious Swedish price for "best film sound 2010."
Klas.
>The SASS may use this effect by using more surface below the mics
>than above, or rather in its nose shape as Gregory has already pointed out=
.
>
>-M.
>
>--- In Gregory O'Drobinak
><> wrote:
> >
> > Klas:
> >
> > The holes in the foam are there for a reason, so that there is
> some open space
> > to the sides of the PZM capsules. The presence of that hole was
> not intended for
> > mounting other capsules behind it. The hole is to open up the boundary =
to
> > incident sound at the edge of the PZM element.
> >
> >
> > As the mics get close to the nose of the SASS, the response
> varies such that
> > there will be more attenuation of the high frequencies and the
> polar response
> > will be changed as well. Hence the "muffled" quality of your rig. Had y=
ou
> > mounted your capsules in the exact spot=C2 of the original PZM mic
> capsules, then
> > the response should be quite clear.=C2 I believe that someone has
> just posted the
> > link to the patent so that you can become familiar with the
> design parameters.
> >
> > Do you have a second SASS with 3032s mounted? Can you send us a
> picture of their
> > mounting details? How about some some sound samples comparing
> that particular
> > rig to the SSM?
> >
> > IMHO, I=C2 think that it would be unwise=C2 make the web page (that
> you sent us the
> > link for) public. The difference between "evaluate" and "hear the
> difference" is
> > slight. People can take that comparison different ways. Perhaps
> it's better not
> > to compare the SSM to anything else. I very much enjoyed the
> "mailman coming"
> > clip, with the fluttering of the birds' wings. Let the SSM stand
> on its own.
> >
> > I noticed that when I did the EQ to correct for the SSM's HF
> peaking that it's
> > high end was very similar to that of the SASS. Of course, the
> localization was
> > different. BTW, some of the sound clips had some rather bad
> glitches at the
> > beginning. What was the cause of this?
> >
> > Well, I think that you have a fine product here and I wish you
> the best of luck
> > with it. The only improvement that I could foresee is a
> cost-reduced model for
> > those of us that are financially impaired.
> >
> > Best regards,
> >
> > Greg
> >
> >
> >
> >
> > ________________________________
> > From: Klas Strandberg <>
> > To:
> > Sent: Mon, August 13, 2012 4:28:59 PM
> > Subject: Re: [Nature Recordists] Re: Miniature Pseudo-SASS Array
> >
> > =C2
> > Vicky, Greg,
> >
> > Sorry for late answer, Greg!
> >
> > I got the SASS in 2010 because I wanted a reference when working with
> > the different "Murie" mike's I had. When I got it, brand new, there
> > were already two holes in the foam for the microphone capsules. That
> > is where the 172's are located on the picture.
> >
> > But quite soon I got more into:
> > http://frogrecordist.home.mindspring.com/docs/mod_sass.html
> > approved on and used by a lot. The diaphragms are facing out.
> > I have also used the SASS with AT3032.
> >
> > But my intention was not to evaluate "SASS" vs. "SSM", they are
> > actually far too different for that. Only hear the difference.
> > The most obvious difference is that the SASS is looking forward more
> > than the SSM, which was not a problem for Crown, as it was meant to
> > hang on a wall, anyway.
> >
> > A muffled sound is not wrong, it's a matter of taste. Also,
> > headphones make more difference in that aspect than a reasonable
> > microphone, not to speak about how hard the headphones are pressing
> > against your ears. "Muffled" is a in my mind a word describing
> > "characteristics", not "quality".
> >
> > Klas.
> >
> > At 22:30 2012-08-13, you wrote:
> > >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.
> > >
> > >Vicki
> > >
> > >On 13/08/2012, at 4:21 PM, Gregory O'Drobinak wrote:
> > >
> > > > Klas, The first thing I noticed is that your modified SASS array
> > > > has the EM172s
> > > > [correct me if I'm wrong; that's what they look like] mounted much
> > > > too close to
> > > > the 'nose' of the SASS, probably at least one half inch too far in.
> > > > That very
> > > > well could explain some of the "muffled" quality that you describe
> > > > on that web
> > > > page. They are inside the foam of the nose piece, thus any direct
> > > > sound on axis
> > > > has to travel through foam, not through free air. This is not good;
> > > > such
> > > > deviations can have a negative effect on the array performance.
> > > >
> > > >
> > >Klas had written:
> > >
> > > > At http://klas.telinga.com/SSM-SASS/ there is a comparison between
> > > > the Telinga SSM and the SASS. I put up this site only to ask a few
> > > > people that I trust, to say their opinions.
> > >
> > >
> > >
> > >------------------------------------
> > >
> > >"While a picture is worth a thousand words, a
> > >sound is worth a thousand pictures." R. Murray Schafer via Bernie Krau=
se.
> > >
> > >Yahoo! Groups Links
> > >
> > >
> > >
> > Telinga Microphones, Botarbo,
> > S-748 96 Tobo, Sweden.
> > Phone & fax int + 295 310 01
> > email:
> > website: www.telinga.com
> >
> >
> >
> >
> >
> >
> >
>
>
>
>------------------------------------
>
>"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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