Скачать или смотреть DIY Lo-Fi Sampler With An ESP32: Part 7 - MAX9814 Electret Microphone

In this episode, I try to clean up the noisy, crunchy audio on my ESP32-based sampler by swapping in a MAX9814 electret mic module. It’s got automatic gain control, built-in preamp, and puts out a proper signal — way better than the shout-only mic I had before.

Using the same code from Part 6, I show what difference the MAX9814 makes, and walk through a few tricks I tried in software to improve the sound: full 12-bit ADC resolution, DC offset removal, and a quick low-pass filter. The result? Slightly better. 🎛️

MAX9814 Microphone module I'm using: https://amzn.to/3Zt4SCt

🔗 Read the full article and grab the code on Medium:   / diy-lo-fi-sampler-with-an-esp32-part-7-max...  

⏱️ Timestamps
0:00 - Introduction / MAX9814 Specs
1:37 - Sound Demo #1
2:00 - Reaction and Possible Tweaks
3:33 - Code Walkthrough
6:40 - Sound Demo #2
6:55 - Outro

👂 What do you think?
Should I stick with this crunchy sound or go hi-fi with an external ADC? Let me know in the comments!

Arduino IDE: https://www.arduino.cc/en/software/
ESP32 Pinout Reference: https://randomnerdtutorials.com/esp32...

Affiliate Links:
Soldering Iron: https://amzn.to/4iAgF8v
SMD Rework Station: https://amzn.to/4ma4i6r
Solder: https://amzn.to/42T1C42
Fume Extractor: https://amzn.to/3Gstuo4
Tip Tinner: https://amzn.to/42NKfBG
CNC Machine: https://amzn.to/4ma4i6r
CNC End Mill Bits: https://amzn.to/4lQjmph
CNC V-Bits: https://amzn.to/4iDEDjc
CNC 1mm Drill Bits: https://amzn.to/44KU1XO
One of many Solderless Breadboards I use: https://amzn.to/4cPUn1o
Oscilloscope I use sometimes: https://amzn.to/3YTwXCm
A Power Supply similar to mine: https://amzn.to/44htf9u

#ESP32 #LoFiSampler #MAX9814 #AudioDIY #MicrocontrollerMusic #SP1200Vibes #HomemadeGear #SynthDIY #SamplerProject