EDN

Pulse density modulation (PDM) audio explained in a quick primer

Pulse density modulation (PDM) is a compact digital audio format used in devices like MEMS microphones and embedded systems. This compact primer eases you into the essentials of PDM audio. Let’s begin ...
AppleInsider

iPhone 17 lets users turn off screen strobing for better eye comfort

Pulse width modulation has been giving some users problems since the iPhone X. Fortunately, Apple is gearing up to tackle screen strobing issues with a new accessibility option. A new accessibility ...
IEEE

Cross Amplitude Modulation and Compound Amplitude Modulation for Nonlinear Contrast-Enhanced Ultrasound Imaging of Nanobubbles

Abstract: In nonlinear contrast-enhanced ultrasound (CEUS) imaging, nanobubbles (NBs) offer a promising alternative for enhanced visualization of microvascular structures and molecular imaging. This ...
IEEE

Application of Optimization Methods to obtain Switching Angles for Selective Harmonic Minimization Pulse Amplitude Modulation (SHMPAM) Technique for 3-Phase Seven Level CHB ...

Abstract: This research presents a constrained optimization approach utilizing three distinct algorithms: Grey Wolf Optimization (GWO), Sparrow Search Algorithm (SSA), and Jellyfish Search Algorithm ...
EDN

Spectrum Analysis – Amplitude and Frequency Modulation

Modulation is the act of translating some low-frequency or baseband signal (voice, music, and data) to a higher frequency. Why do we modulate signals? There are at least two reasons: to allow the ...