Fourier Transform Tool — GLM-5.3 one-shot demo

01 Machine

02 Spectrum hover a bar · click to mute

03 Reconstruction partial sum vs original

04 Signal · Audio additive synthesis

Pitch 220 Hz

Harmonics n = 8

Volume 50%

Space	pause / resume the machine
S	start / stop the sound
1 – 7	sine · square · saw · triangle · heart · pi · star
D	switch drawing mode: closed shape ↔ one wave period
C	clear the canvas
↑ / ↓	harmonics in the machine (Shift: audio harmonics)
← / →	animation speed (Shift: pitch)
M	mute / unmute the hovered harmonic
click spectrum	mute that harmonic everywhere — shape, sum, sound
drag convergence	scrub the harmonic count directly