These are great mics. I tested a number of analog and digital mics, researched other people's recommendation, and tried a number. This is the best sounding mic for stereo audio capture with a microcontroller I have found. Beware to take care soldering because I ruined a bunch of these by soldering them incorrectly. Look closely at the center of the breakout board in the image. These are both from this product. There's a strange instinct to solder the headers with the chip on top and the flat section on the bottom. Problem is the mic is the hole on the side without the chip. If you solder the chips on wrong side, like i did 4 times, the mic is effectively blocked by the breadboard, permaproto or other installation. I've found a way to use some of my bad ones without desoldering by using female header pins and finding a way to allow sound to reach the mic hole, but this isn't going to work for many use cases. Therefore solder them correctly with the mic hole up and the pins pointing down. Furthermore, I can't recall any of the product pages for INMP441 mentioning the soldering problem. I googled it and found I was far from alone making this mistake. EDIT: I gave them the full 5 stars after trying other brands and finding none handled the correct soldering issue and this brand seemed highest quality with prime deliver.
Frankly the Teyleten Robot INMP441 Omnidirectional Microphone Module MEMS High Precision Low Power 3-pack would get 5 stars if not for them being on the expensive side and for the fact that there was nothing in the packaging that I recall that would have helped me avoid wasting 4. I also tried some from aliexpress and other mems, pdm digital mics. These do not require an analog input on the CPU or MCU. They utilize standard digital pin protocols. You'll need power, ground, and 3 GPIO pins. This is more complex than an analog mic such as MAX4466 which requires +, -, and an analog input pin, 2 pins less than Mems or other 3 wire protocols. But let me tell you something. The audio captured by a properly soldered INMP441 is about 10 times clearer and more representative of the actual sound being recorded. Write a small Python, CircuitPython, or C/Arduino program to do nothing but record into a buffer big enough to fit 10 seconds of sound. Then render the sound from each mic. I am positive you will select the INMP441. It's a very capable, affordable, well supported, and consistent quality. If you don't want to waste your time testing and trial and error like I did, just buy these. I need to find a similar quality vendor as Teyleten Robot or a way to buy these in bulk over aliexpress perhaps since this is now my electronics product mic of choice for voice capture, or sound reactive algorithms.
In my attached photo, I put two of these side by side. The green arrow points to the correctly soldered and working mic, the red arrow is a fail. Again, I do trust this brand and will buy again. I'm just mad about no warning about soldering the headers!
Teyleten Robot INMP441 Omnidirectional Microphone Module MEMS High Precision Low Power I2S Interface for ESP32 (5PCS)
4.5 | 68 ratings
Price: 13.88
Last update: 01-03-2025
About this item
INMP441 is a high performance, low power consumption, digital output, omnidirectional MEMS microphone with bottom port
The complete INMP441 solution consists of a MEMS sensor, signal composition conditioning, analog-to-digital converter, anti-aliasing filter, power management and industry standard 24-bit I²S interface.
The I²S interface allows INMP441 to connect directly to digital processors, such as DSPs and microcontrollers, without the need for the audio codec used in the system
INMP441 has a high signal-to-noise ratio and is an excellent choice for near-field applications. INMP441 has a flat broadband frequency response, resulting in high definition of natural sound.
The complete INMP441 solution consists of a MEMS sensor, signal composition conditioning, analog-to-digital converter, anti-aliasing filter, power management and industry standard 24-bit I²S interface.
The I²S interface allows INMP441 to connect directly to digital processors, such as DSPs and microcontrollers, without the need for the audio codec used in the system
INMP441 has a high signal-to-noise ratio and is an excellent choice for near-field applications. INMP441 has a flat broadband frequency response, resulting in high definition of natural sound.
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Top reviews from the United States
RichSadThese mics work great AS LONG AS YOU SOLDER THE RIGHT SIDE!
RichSad
Reviewed in the United States on June 16, 2022
Frankly the Teyleten Robot INMP441 Omnidirectional Microphone Module MEMS High Precision Low Power 3-pack would get 5 stars if not for them being on the expensive side and for the fact that there was nothing in the packaging that I recall that would have helped me avoid wasting 4. I also tried some from aliexpress and other mems, pdm digital mics. These do not require an analog input on the CPU or MCU. They utilize standard digital pin protocols. You'll need power, ground, and 3 GPIO pins. This is more complex than an analog mic such as MAX4466 which requires +, -, and an analog input pin, 2 pins less than Mems or other 3 wire protocols. But let me tell you something. The audio captured by a properly soldered INMP441 is about 10 times clearer and more representative of the actual sound being recorded. Write a small Python, CircuitPython, or C/Arduino program to do nothing but record into a buffer big enough to fit 10 seconds of sound. Then render the sound from each mic. I am positive you will select the INMP441. It's a very capable, affordable, well supported, and consistent quality. If you don't want to waste your time testing and trial and error like I did, just buy these. I need to find a similar quality vendor as Teyleten Robot or a way to buy these in bulk over aliexpress perhaps since this is now my electronics product mic of choice for voice capture, or sound reactive algorithms.
In my attached photo, I put two of these side by side. The green arrow points to the correctly soldered and working mic, the red arrow is a fail. Again, I do trust this brand and will buy again. I'm just mad about no warning about soldering the headers!
Images in this review
DJEnjoying this mic
Jack ConneryAmazing little microphones!
Marjay Worked well
Kyle AmbosOne of the best digital microphones out there!
Mark StrauchCan you hear me now?
STDOA... MultiMeter reads no volatage between gnd and vcc
Maxim