Active Noise Cancellation (ANC) technology enhances audio experiences by reducing unwanted ambient noise, providing clearer sound quality in headphones and earphones. This project aims to design and develop a wired ANC earphone that integrates a feedforward noise cancellation system. The design incorporates a MEMS microphone to capture external noise, an op-amp circuit to amplify signals, and an ANC processing chip (AMS AS3415 or Analog Devices SSM3515) to generate an inverse noise signal. The processed anti-noise signal is then mixed with the audio output through a custom-built audio mixer before reaching the earphone drivers. Power can be sourced from either a 3.5mm audio jack or a USB-C connection for enhanced performance. This post explores the feasibility of building an affordable, high-quality ANC earphone by optimizing circuit design, component selection, and signal processing. Potential applications include personal audio devices, professional headsets, and low-cost noise cancellation solutions for wired audio system.
Only a company like Nothing can do such a bold move and capture the wired earphone market entirely…