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Reasons Why Reproducing Piano Sounds with a Synthesizer So Hard

The Music Telegraph | Text 2024/01/09 [15:07]
MIDI

Reasons Why Reproducing Piano Sounds with a Synthesizer So Hard

The Music Telegraph| 입력 : 2024/01/09 [15:07]

 

© Unsplash (photo by Andriy Nestruiev)



Reasons Why Reproducing Piano Sounds with a Synthesizer So Hard

 

The piano sound has two elements: an initial 'attack' part and a subsequent 'decay' part. The inital attack part can be divided into the very transient sound of a hammer hitting the piano string and the overtone components representing the vibration of the piano string. After attack, the piano sound has a very long decay time and the power of the overtones changes into the resonance of the piano's soundboard. Traditional synthesizers, especially those using subtractive synthesis, had difficulty in accurately reproducing the piano's envelope for several reasons. Firstly, the envelope of subtractive synthesis was small, so it was not possible to reproduce the piano's continuous long decay part. Secondly, the piano's harmonic components were so complex that the piano's harmonic spectrum could not be realized with the waveform of a traditional synthesizer. In conclusion, the closer one part of a synthesizer keyboard is to the sound of a piano, the less likely the other parts on the keyboard will sound like a piano at all. To solve these problems, in the case of digital synthesizers, the attack part of the piano was reproduced using PCM sample data and the piano's decay part was simulated using subtractive synthesis. 

 

 

 

 

 

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