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Home / Computer Hardware, Monitors & Peripherals / MAX9814 Microphone Amplifier Module MIC Audio Amplifier 2.7V-5.5V Sound Sensor

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Operating Voltage 2.7V to 5.5V DC
Gain Selection 24dB, 29dB, 34dB, 39dB
Output Type Analog Audio Signal
Frequency Response 20Hz to 20kHz
Signal-to-Noise Ratio 92dBA (A-weighted)
Board Dimensions 15mm x 12mm x 3mm
Weight 2 grams
Interface 3-Pin Header (VCC, GND, OUT)
Microphone Included Yes, Electret Condenser
Compatibility Arduino, Raspberry Pi, ESP32

5 reviews

A

Anonymous

Apr 05, 2026

Rating: 4/5

Good value

Works well for the price. The soldering pads are a bit small for beginners, but functionally it is solid.

A

Anonymous

Feb 27, 2026

Rating: 5/5

Great for Arduino projects

Works perfectly with my Arduino Uno. The audio output is clear and the gain settings are easy to configure by bridging the pads.

A

Anonymous

Feb 08, 2026

Rating: 5/5

Reliable component

Bought 10 for our workshop. All functioning correctly and students found them easy to integrate into their circuits.

A

Anonymous

Jan 30, 2026

Rating: 5/5

Low noise performance

The noise floor is very low compared to other modules I tried. Excellent for voice recognition projects.

A

Anonymous

Jan 25, 2026

Rating: 5/5

Perfect for voice detection

Used this for a voice activation project in university. Sensitivity is adjustable and it picks up speech clearly.

5 FAQ

Q: How do I change the gain?

A: There are pads on the board to select between 24dB, 29dB, 34dB, or 39dB by soldering a bridge.

Q: Does this come with a microphone?

A: Yes, an electret microphone is included on the board.

Q: Can I use this with 3.3V logic?

A: Yes, the operating voltage range supports 3.3V systems comfortably.

Q: Is the output digital or analog?

A: This module provides an analog audio output signal suitable for ADC input.

Q: What is the maximum distance for voice capture?

A: Depending on the environment, it typically captures clear voice within 1 to 3 meters.

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