Voice Changer

Voice Changer project can be used to transpose or distort one’s voice by encoding the sound appearing at the Microphone input.  This project  is built around AP8072 IC.

Specifications

• Supply input : 6 VDC @ 200 mA
• Output : Speaker, 8 Ω / 0.5 W
• Audio amplifier type LM386 with volume control preset
• Jumper selectable tone frequency for encoding sound
• 4 Tones to choose
• Built in noise reduction circuit for reducing environment noise
• On/Off Jumper connector for power supply input
• Berg connector for power supply input and speaker output
• Four mounting holes of 3.2 mm each
• PCB dimensions 48 mm x 52 mm

Schematic

Parts List

Jumper Settings

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