The INMP441 MEMS Omnidirectional Microphone Module is a mini MEMS microphone using Inter-IC Sound (I2S) digital communication, with 61dBA signal-to-noise ratio, 60Hz to 15000Hz frequency range, 26dBFS sensitivity, drawing 1.4mA at 3.3V. Unlike analog electret microphone modules that output a varying voltage requiring an external analog-to-digital converter, this omnidirectional microphone transmits digital audio data directly over the I2S bus, eliminating analog noise pickup along connecting wires.
The i2s microphone module’s omnidirectional pickup pattern captures sound equally from all directions rather than favoring one specific angle, useful for voice assistant projects or ambient sound capture where the sound source direction varies. This inmp441 module’s wider 60Hz-15000Hz frequency range and 61dB signal-to-noise ratio support genuine voice and audio capture quality, distinguishing it from simpler sound-level detection sensors that only measure loudness or trigger on claps without preserving meaningful audio fidelity.
As a digital i2s microphone arduino component, this module requires a microcontroller with I2S peripheral support (such as ESP32) rather than simple analog pin reading, so basic Arduino Uno boards without I2S capability would need additional libraries or different hardware. StemVolt provide this module is well-suited for engineers building voice recognition systems and practical digital audio capture electronics projects.
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Features:
- SNR of 61 dBA gives low noise floor for clear voice and audio capture
- Sensitivity of 26 dBFS detects low-amplitude sounds including quiet speech
- Frequency response of 60Hz to 15kHz covers the full human speech range
- Current consumption of 1.4mA allows continuous audio capture on battery power
Technical specifications:
 Applications:
- INMP441 used for ESP32 voice assistant audio capture build
- Smart speaker uses i2s microphone module for India voice command capture
- Recording device inmp441 module for ambient sound logging
- IoT node uses i2s microphone for speech recognition input project
Package includes:
- 1 x INMP441 MEMS Omnidirectional Microphone Module
Ishita Nambiar –
COD available
Avani Sharma –
Whatsapp support was helpful for setup guidance, while the module delivered clear audio performance for embedded and IoT applications
Navya Patnaik –
Suitable for Arduino, ESP32, and advanced audio processing projects requiring a compact omnidirectional microphone with reliable digital output
Vihaan Grover –
Damage proof packing
Hrithik Mahajan –
Provides high-quality digital audio capture through the I2S interface, making it ideal for robotics, voice recognition systems, and final year projects
Kabir Chatterjee –
Trusted store product
Rohan Deshmukh –
A great choice for robotics and smart device development, offering stable performance and easy integration with modern microcontroller platforms.