Robotronics Buzz E. Smoke Alarm & Safety House, Operating Manual, Page: 22 / 75

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Chapter 10 Voice Modifier
Chapter 10 Voice Modifier
The pitch shifter (voice modifier) can change the operators voice to disguise it and create the
Smoke Alarm character voice. The operators voice signal is sent to the audio board in the
control box. The audio board sends your voice to the
Input of the pitch shifter. It is modified
and sent from the shifter Output back to the audio board again and then it mixes with the other
audio going to the Speakers.
8. D.Time Speed Knob – Delay time. Not used in pitch shifter or harmonist mode.
9. Balance knob – This adjust the output balance between the direct sound and the effect
sound. Typically set this on EFX for the full effect.
10. H.R. Key switch. Not used.
11. Pitch Switch. Adjusts the amount of pitch shift.
12. Mode Switch. Selects the mode. Typically use the pitch shifter mode.
The pitch shifter has two basic effects; a digital pitch shifter and a delay. There are many
variations of these two effects. When used as a pitch shifter, you can vary the shift /- 2
octaves. Set the mode knob to Pitch shifter and then vary the pitch knob until you get the sound
of voice that you want. You can get a similar effect with the harmonist position but the pitch
shifter gives you the best sound. These are the most common modes used because these
modes give you the ability to adjust the shift of your voice to exactly what you want whether up
or down. About 2:00 on the pitch knob gives you a good voice.