A Hybrid Resynthesis Model from Hammer-String Interaction of Piano Tones

Authors: Bensa J., Jensen K., Kronland-Martinet R.
Publication Date: July 2004
Journal: Journal on Applied Signal Processing (pp. 1021-1035, 2004)

Tags: Analysis Synthesis

Source-resonator approach (see section 1.)

Note C1, recorded in an anechoic room using an artificial head, followed by the note C1 again, after removing the first 20 ms of the signal.

Note A3, recorded in an anechoic room using an artificial head, followed by the note A3 again, after removing the first 20 ms of the signal

Note C7, recorded in an anechoic room using an artificial head, followed by the note C7 again, after removing the first 10 ms of the signal

Analysis and resynthesis of the vibration of single or multiple struck strings using single or coupled digital waveguides respectively (see section 2.2).
The original signals (velocity signals) are measured on the experimental setup (see section 2.4), using an accelerometer at the bridge.

One string

One string - Original signal

One string - Excitation

One string - Impulse response of the resonator

One string - Synthesis

Two string - Original signal

Two string - Excitation

Two string - Impulse response of the resonator

Two string - Synthesis

Three string - Original signal

Three string - Excitation

Three string - Impulse response of the resonator

Three string - Synthesis

The original signals (velocity signals) are measured on the piano (see section 2.5), using an accelerometer at the bridge.

Note A0, original (one string)

Note A0, synthesis (one digital waveguide)

Note A1, original (two strings)

Note A1, synthesis (two digital waveguides)

Note F3, original (three strings)

Note F3, synthesis (three digital waveguides)

Note C5, original (three strings)

Note C5, synthesis (three digital waveguides)

Note A6, original (three strings)

Note A6, synthesis (three digital waveguides)

Excitation signal obtained by deconvolution for three different hammer velocities (see figure 12)

Static spectrum and error term (see section 3.2.1)

Synthesis, using only the static spectrum as excitation model

Synthesis, using the static spectrum and the error term as excitation model

Synthesis of the vibration of a single struck string using single digital waveguide and the excitation model for three different hammer velocities. The original signals (velocity signals) are measured on the experimental setup, using an accelerometer at the bridge.

Synthesis, pianissimo

Synthesis, mezzoforte

Synthesis, fortissimo

Analysis and resynthesis of the vibration of three struck strings using three coupled digital waveguides and the excitation model for three different hammer velocities. The original signals (velocity signals) are measured on the piano (note G3), using an accelerometer at the bridge.

Original, pianissimo

Synthesis, pianissimo

Original, mezzoforte

Synthesis, mezzoforte

Original, fortissimo

Synthesis, fortissimo