Beating → AM Sidebands Demo (with Spread)
Set a frequency spread
Δ
. The tones will be:
f0 = 440
,
f- = 440 − Δ
,
f+ = 440 + Δ
.
Start quiet. Headphones recommended.
Start Audio
Stop
stopped
Presets
1) 440 only
2) 440 + (440−Δ)
3) 440 + (440+Δ)
4) 440 + (440−Δ) + (440+Δ)
5) (440−Δ) + (440+Δ) (no 440)
To make pitch differences obvious, try
Δ = 7
. For slow beating, try
Δ = 2
(beat rate will be
2Δ
Hz for the pair-only case).
Controls
Δ (Hz)
7
f-:
438
Hz
f0:
440
Hz
f+:
442
Hz
Master
0.050
440 (carrier)
1.000
f- (440−Δ)
0.000
f+ (440+Δ)
0.000