Hi everyone, Dennis Foley from Acoustic Fields. Today we're gonna talk about the nesting doll.
Remember that Russian doll where it's a small doll inside another larger doll, and it's a
whole series of dolls inside each other? This is the technical name, I won't even try to
pronounce it, looks Russian. So that's the process, but really think about what we have with our
situations in music. We have a speaker inside a room, and the room is inside a house. So
we have that kind of nesting doll impact. Now the nesting doll obviously is not concerned
with audio, but we are definitely concerned with audio. And that's, you know, speaker energy
source, room distortion source. That's really what you have. So you have speaker inside a
room producing a whole series of distortions, pressure and reflections. And then the room
is inside of a house, produces a lot of issues also. One of the hardest things to do is lower
the noise floor in a room. It's expensive. and especially if that room is inside a house,
these houses generate lots of noise just on their own. So it's this layering and layering
and layering of noise. And you're starting out with a speaker, which is the weakest part of
the whole audio reproduction chain to begin with. You're putting it in a room that doesn't
like pressure or reflections, and then that room is in a house that's generating its own
set of noise variables. So it's a cumulative effect. Most small rooms cannot handle energy
below 300 Hz. So speakers are going to produce full-ray energy and the room is not going to
like half of it approximately. So you're really fighting the numbers here in an uphill battle
when you're using this kind of situation. It's the Schroder frequency which is the breakpoint
between wave and ray energy in your room. You can look that up. So that's what we need to
look at. adds more distortion, modal issues in small rooms always less than 300 Hz. That's
why we focus on that range for our product design, our ACDA series and all of those so you get
an idea of how that all works. Treatment, frequency and amplitude, you've got to have the proper
rate of absorption. That's very, very critical. And if you don't get enough of the right type
and you don't get enough amount, and you don't put it in the right place, you're not going
to get the results you do. So the type has to have rate and level, square footage, and it's
got to be in all three sound fields. Remember our sound fields are floor to ceiling, side
wall to side wall, and then we've got front to rear, right? In other rooms. So you've got
three sound fields that you have to treat. Diffusion requirements, you've got to do your homework
with absorption first before you can bring in. Diffusion, diffusion is like extra credit in
school. So I hope this kind of gives you an idea of what you're fighting in terms of noise
floor, in terms of room modal pressure and reflections and all of those issues also. The nesting doll,
I hope this helps. Thank you.
So please do that because we offer special price discounts to only those on our newsletter.
And then don't forget about our forum. We have started a forum on our own website where people
ask questions and I usually get a chance every couple days to look at it. There's an interchange
between people on the forum and we'll give you real answers on a regular basis so that'll
help you. Thank you.