A
piano makes its sound by having tuned strings which are struck by hammers.
When a key is depressed it activates a mechanism which throws the hammer at the
appropriate string (or strings) and lifts the damper off to allow the strings)
to vibrate freely.
The hammer strikes the string,
bounces off and is caught by a checking device.
The
strings) vibrate at a set pitch or frequency (different for each note).
The
strings are stretched tightly across "bridges" which are mounted on the "soundboard"
to which the vibration is transferred.
The sound
is amplified by means of the soundboard which is a large flat piece of wood which
effectively acts as a large loudspeaker.
The
sound of a piano is made by metal "strings" vibrating.
This sound is amplified by the "soundboard".
When a key is pressed the action of the piano transfers the momentum of the moving
key to a felt hammer which is launched towards the strings for that particular
note.
The hammer strikes the strings and bounces
off leaving the strings to vibrate.
As the key
is depressed the action lifts the damper away from the strings to allow the strings
to vibrate.
When the key is released the hammer
falls back into place and the damper is returned to the strings to stop them vibrating.
When the key is released, the hammer falls back to its normal resting place and
the damper is pressed back onto the string's) to stop the vibration and thus the
sound.
