Microphone Connections: A Short Tutorial Jon Wahrenberger
audio - Making a [4-Pole TRRS to 3.5mm Stereo & Mic Adapter (Male to 2x Female)] from an iphone headphone splitter jack? - Electrical Engineering Stack Exchange
How to make DIY 3.5mm line to mic Aux cable to record audio from MP3 device to phone/PC. I tried soldering 2 jacks GND to GND and left to mic with low
Amazon.com: Fancasee 6 ft Replacement 3.5mm Male Plug to Bare Wire Open End TRRS 4 Pole Stereo 1/8" 3.5mm Plug Jack Connector Audio Cable for Headphone Headset Earphone Microphone Cable Repair : Electronics
Circuits, Wiring, Connecting and Terminology - Sound Services