“…results suggest the existence of a previously unrecognized response to complex sound containing particular types of high frequencies above the audible range. We term this phenomenon the ‘hypersonic effect.” May explain why most listeners can hear a supposedly impossibly high-frequency difference between a 12 kilo Hertz square wave versus a 12 kilo Hertz sine wave. … Read more
Video Contents, by time-offset 0:00 Intro 0:43 What is Noise in a PCB? 1:17 PCB Noise Reduction Strategies Overview 3:22 Filtering 7:48 Shielding 11:41 Advanced Noise Reduction Options 16:45 Isolation and Splitting Ground Planes PCB Design: Electronic Noise Filtering Electronic noise filtering in PCB (Printed Circuit Board) design is a critical aspect, … Read more
Malcolm Moore has done extensive research into guitar pickups. SOURCE The high-bandwidth requirement of guitar amplifiers is a crucial aspect that impacts their performance and the overall sound quality they deliver. In the context of guitar amplification, “bandwidth” refers to the range of frequencies the amplifier can accurately reproduce. For electric guitars, this encompasses … Read more
This highly nonlinear history of radio touches briefly on just some of the main stories, and provides pointers to the literature for those who want to probe further. Integrated circuit engineers have the luxury of taking for granted that the incremental cost of a transistor is essentially zero, and this has led to the high-device-count … Read more