Physis Piano H1 Reference Manual page 8

Reference Manual – Sound Edit Parameters
Stiffness
that influences the regularity of harmonic distribution of the overtones,
brilliance and Longitudinal Vibration
left you can change the string type value by recalling different combinations of such parameters.
HINTS AND TIPS: By moving the slider you can recall different combinations of the parameters
and
Duplex Scaling Longitudinal Vibration
window using arrow keys.
Microparameter:
−
String Stiffness: The
harmonic distribution of the overtones.
Piano strings are generally stiffer than those used in other stringed instruments such as the guitar. A stiff string is no
longer perfectly flexible and gets some of the characteristics of a metal bar. The overtones frequencies of a flexible
string have integer ratios (harmonics) to the fundamental. This relationship does not hold for the overtones of a stiff
string, where the frequency distance of neighbouring overtones increases as a function of frequency, adding a bell-
like character to the sound.
HINTS AND TIPS: A 0 value of String Stiffness corresponds to the a standard piano string with inharmonic overtones,
while +50 corresponds to maximum inharmonicity and -50 leads to a perfectly harmonic sound.
−
Duplex Vibration: The
strings.
In several modern pianos the short portion of the string that is located between the Bridge and the Hitch pin is tuned in
order to resonate sympathetically with a harmonic relationship to the corresponding notes. These additional short
strings add brilliance to the treble notes of the piano.
HINTS AND TIPS: A 0 value corresponds to the standard
maximum of Duplex Vibration
−
Longitudinal Vibration: The
called "phantom partials".
The main mode of a piano string vibration occurs along an axis perpendicular to the string itself (transverse motion). At
the same time, the string can vibrate along its axis (longitudinal motion). The hammer excites the string mainly along its
transverse axis, but, for large amplitudes, some energy is transferred from the transverse to the longitudinal motion.
This type of vibration produces special components (phantom partials) that give a metallic character to the sound.
HINTS AND TIPS: The Longitudinal Vibration effect can be better heard by playing fortissimo on lower notes up to the
3rd octave.
RESONANCE
How to access: press [SOUND EDIT], select the SOUND ENGINE block,
select the Resonance field.
Description: adjust the strings resonance.
Macroparameter:
−
Piano Resonance
Resonance: The
the parameters that affect the string interactions such as sympathetic
resonance and release time.
When notes are played on a piano the sound produced transmits
vibrations to all piano parts including the strings corresponding to keys
that are not played. Such strings are able "to capture" part of the energy emitted from played notes starting to slightly
vibrate because of a physical phenomena known as sympathetic resonance. The amount of this effect is also
influenced by the damper status: pressed or released. Moreover,
is related to the release time and the
HINTS AND TIPS: By moving the slider you can recall different combinations of the parameters
Damper Resonance, Damper size
window.
Microparameter:
−
String Resonance
String: The
or overtone frequencies when other strings are sounded.
When one or more notes are played on a piano, the vibration is transmitted to all piano parts including the strings that
are not played. Such vibration causes such passive and un-damped strings to slightly vibrate because of a physical
phenomena known as sympathetic resonance. This natural effect replicates exactly what happens inside an acoustic
piano giving beauty and realism to the generated sound.
HINTS AND TIPS: If you hold down a low C and let the note decay, the strings for that note are still un-damped for as
long as the key remains depressed. If you now strike another C higher up the keyboard (staccato), you will hear the
that is related to sound details called phantom partials. Moving the slider to the
, but it is also possible to change them one by one by focusing on their edit
String Stiffness
parameter allows you to control the string flexibility which affects the regularity of
Duplex Vibration parameter allows you to control the amount of sound produced by duplex
and -50 nulls the effect.
Longitudinal Vibration
setting allows you to jointly modify
Damper Noise
and
Damper Noise
parameter allows you to control the amount of resonance of strings at their fundamental
Duplex Vibration
parameter allows you to control particular sound components
Piano Resonance
as well.
, but it is also possible to change them one by one in their edit
6
Duplex Vibration
that affects tone
String Stiffness,
amount, while +50 corresponds to the
also affects the Damper Size
String Resonance,
that