paroles de chanson Pressure Waves - Original Mix - Festuca
The
source
of
every
sound
is
a
vibrating
body
Take
for
example
The
vibrating
drum
head
pushes
against
the
air
every
time
it
moves
outward
We
call
these
pulses
of
compressions
and
rarefactions
P-P-P-P-P-P-Pressure
waves
A
drum
Each
sound
has
a
distinctive
pitch,
loudness,
and
quality
Waves
which
your
ears
pick
up
and
analyze
But
first
let's
investigate
what
causes
sound
The
source
of
every
sound
is
a
vibrating
body
Take
for
example
A
drum
The
vibrating
drum
head
pushes
against
the
air
every
time
it
moves
outward
We
call
these
pulses
of
compressions
and
rarefactions
P-P-P-P-P-P-Pressure
waves
The
vibrating
drum
head
pushes
against
the
air
every
time
it
moves
outward
We
call
these
pulses
of
compressions
and
rarefactions
P-P-P-P-P-P-Pressure
waves
It's
these
vibrations
which
your
brain
interprets
as
sound
Pressure
waves
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