Isolating speakers from the floor
 

"Ian the copycat"

You can't do much about it. Using stands will do no good. If it is bass
that can be heard you just need to turn it down. It is the sound that can
be heard and not from the actual case itself.

** So " Ian " just read my replies and copied them.

Wot a boring little turd.



...... Phil

Isolating speakers from the floor
 

"Graham." wrote in message
...

"Doki" wrote in message
...
Has anyone got any experience and suggestions of DIY methods of isolating
speakers from the floor? I'm looking to do it to reduce the amount of
noise transferred through the floor to downstairs, rather than as a
method of altering sound quality.


If I have understood the question correctly...

...have you considered a good boarding school?

I'm not sure what they'd think of me as a pupil at my age...

Isolating speakers from the floor
 

"Dave Plowman (News)" wrote in message
...
In article ,
Doki wrote:
Has anyone got any experience and suggestions of DIY methods of
isolating speakers from the floor? I'm looking to do it to reduce the
amount of noise transferred through the floor to downstairs, rather
than as a method of altering sound quality.

Makes little difference - the sound waves produced by the speaker will
still go through the floor.

Bah. I was of the impression that most speaker stands deliberately attempt
to couple the speaker to the floor to alter sound quality / quantity. My
first thought was to stick the speakers / stands on something heavy, and
stick the stack of speakers and heavy thing on a rubber mat, with the hope
that the weight of the heavy thing would absorb some of the energy.

P'raps I should get some of eggbox foam - some of the lads did survey work
in some anechoic chambers and apparently you could bearly hear each other
unless you were face to face.

Isolating speakers from the floor
 

My Infinity kappa 600 speakers are well isolated by double tiles of 25kg
each, so 50kg per speaker and between the tiles are very simple tabs wich
are normaly used for furniture to preserve scratches on the floor.


Are they of particular historical interest?

--
Graham.

%Profound_observation%

Isolating speakers from the floor
 

"Phil Allison" wrote in message

"Don Pearce"
Doki wrote:
Has anyone got any experience and suggestions of DIY
methods of isolating speakers from the floor? I'm
looking to do it to reduce the amount of noise
transferred through the floor to downstairs, rather
than as a method of altering sound quality.

This is not easy; if you make an isolation system that
works down to an adequately low frequency, it is likely
that the speakers will be unstable and wobbly. You could
always hang them from the ceiling. Anyone living above?

The cabinets are NOT responsible for shaking the floor.

Agreed.

The mass of the enclosure is usually very large compared to the mass of the
speaker cone. Newton's Law about actions and reactions is relevant. Bottom
line, the cabinet does not transmit much sound through its feet.

Problems with transmission of sound, whether laterally or vertically, are
overwhelmingly based on response to the acoustical output of the speakers.

I've seen situations where speakers have been hung on fishing line just
strong enough to not break. and they sounded and transmitted sound into
adjacent rooms identically the same as they had been situated in the same
location and orientation by more conventional means.

Isolating speakers from the floor
 

"David Looser" wrote in
message
"Dave Plowman (News)" wrote in
message ...
In article ,
Doki wrote:
Has anyone got any experience and suggestions of DIY
methods of isolating speakers from the floor? I'm
looking to do it to reduce the amount of noise
transferred through the floor to downstairs, rather
than as a method of altering sound quality.

Makes little difference - the sound waves produced by
the speaker will still go through the floor.


It'll make a fair bit of difference.


Only in our dreams.

Solids are rather
better conductors of acoustic energy than air is.

True, but... There's a lot more air in play. Lots.

So if
the speakers are mechanically coupled to the floor a lot
more acoustic energy will be transferred to it that if
the only coupling is via the air inside the room.

Not really.

I have a friend who hangs his speakers from the ceiling with the thinnest
possible fishing line. Very stable in its way, and also about as flexible as
one could hope for. Makes virtually no change in the amount of bass that is
transmitted.

Isolating speakers from the floor
 

In article ,
Doki wrote:

"Dave Plowman (News)" wrote in message
...
In article ,
Doki wrote:
Has anyone got any experience and suggestions of DIY methods of
isolating speakers from the floor? I'm looking to do it to reduce the
amount of noise transferred through the floor to downstairs, rather
than as a method of altering sound quality.

Makes little difference - the sound waves produced by the speaker will
still go through the floor.

Bah. I was of the impression that most speaker stands deliberately
attempt to couple the speaker to the floor to alter sound quality /
quantity.

That's a different argument.

My first thought was to stick the speakers / stands on
something heavy, and stick the stack of speakers and heavy thing on a
rubber mat, with the hope that the weight of the heavy thing would
absorb some of the energy.

A thick and heavy mat covering the whole floor would be more like it.
Although mainly for higher frequencies.

P'raps I should get some of eggbox foam - some of the lads did survey
work in some anechoic chambers and apparently you could bearly hear each
other unless you were face to face.

That was to treat the acoustics of the room and will have little effect
on sound transmission in/out of it, especially at LF. For that you need
mass - lots of it.

--
*A day without sunshine is like... night.*

Dave Plowman London SW
To e-mail, change noise into sound.

Isolating speakers from the floor
 

"Dave Plowman (News)" wrote in message
...

That was to treat the acoustics of the room and will have little effect
on sound transmission in/out of it, especially at LF. For that you need
mass - lots of it.

Righto. The building looks very much like a CLASP style of construction, so
I suspect the best bet will be to give the neighbours my number and ask them
to ring me if it's annoying them. Having been present for the demolition of
CLASP buildings, I don't have much hope of listening to music at a decent
volume.

Isolating speakers from the floor
 

Doki wrote:

Has anyone got any experience and suggestions of DIY methods of isolating
speakers from the floor?

Mount them on bookshelves.

Let me guess. Downstairs doesn't like the bass ?

Graham

Isolating speakers from the floor
 

In article , Eeyore
wrote:


Doki wrote:

Has anyone got any experience and suggestions of DIY methods of
isolating speakers from the floor?

Mount them on bookshelves.

Let me guess. Downstairs doesn't like the bass ?

An alternative approach might be to measure the spectrum of the sounds and
use notch filters to reduce the levels at the main LF resonances. That
might reduce the level of sound leakage - and improve the sound in the
room.

Otherwise... headphones, or turn down the volume. :-)

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
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