The
sound
parameters
are
four
:
____________________
,
____________________
,
____________________
and
timbre
.
They
tell
us
several
characteristics
about
every
____________________
.
The
pitch
tells
us
how
high
or
____________________
a
sound
is
,
and
its
measurement
unit
is
the
____________________
(
Hz
)
.
We
express
the
pitch
by
the
musical
____________________
.
The
loudness
tells
us
how
loud
or
____________________
a
sound
is
,
and
its
measurement
unit
is
the
____________________
(
dB
)
.
The
loudness
is
the
same
than
the
____________________
,
and
we
express
the
loudness
by
musical
symbols
written
on
the
score
.
The
duration
tells
us
how
____________________
or
____________________
a
sound
is
,
and
its
measurement
unit
is
the
____________________
(
s
)
.
We
express
the
duration
by
the
musical
____________________
.
The
timbre
tells
us
what
musical
____________________
,
or
human
____________________
,
produces
every
sound
.
It
is
related
to
the
sound
formwave
.
