Computational Physics: 9/15/2009

黃信健

7 Fourier Analysis - Musical Tones

7.1 Synthesis of a bell tone

K

kk

tk tfeAtw k

1

/ )2sin()(

7.2 FM Synthesis of a bell tone

)2sin(2sin)( tfbetfetw mt

ct

α =.125β = -.175b = .1

7.3 Risset’s endless glissando

m

tt

t

mtgtw

efetg

fefty

)8()(

32/4 ),/2sin()(

sec8/)5.1log( Hz,784)/2sin()(

20

0

0

2

Wave Format

Bell Wave files n = 400

Endless Wave files n = 40000

Bell Wave files n = 400

Endless Wave files n = 40000