Voder Synthesizer (1939)
Authentic Edition with Original Stop Consonants
A historically accurate recreation of Homer Dudley’s pioneering speech synthesizer.
Resonant Filter Bank (Q-W-E-R-T-Y-U-I-O-P)
Q150Hz
W250Hz
E350Hz
R450Hz
T550Hz
Y650Hz
U750Hz
I850Hz
O950Hz
P1050Hz
Stop Consonants & Transients (1939 Original Keys)
1/p/ /b/
2/t/ /d/
3/k/ /g/
4/ch/ /j/
5/f/ /v/
6/sh/
Sound Source
AVoiced (Buzz)
SUnvoiced (Hiss)
Pitch Control
ZLower Pitch (Hold)
XRaise Pitch (Hold)
Current Pitch: 100 Hz
Play Control
Instructions:
- SPACE: Toggle play/stop
- Q-W-E-R-T-Y-U-I-O-P: Activate resonant filters (vowel formants)
- 1-6: Stop consonants & transients (original 1939 keys)
- A: Voiced source (buzz) | S: Unvoiced source (hiss)
- Z/X: Hold to continuously decrease/increase pitch (20-200 Hz)