James West and Gerhard Sessler's 1962 Electret Microphone Patent Powers Most Modern Devices
In 1962, James West and Gerhard Sessler patented the electret microphone, a compact, low-cost design that revolutionized audio technology. This innovation, developed at Bell Labs, combined high-quality sound with energy efficiency, overcoming limitations of earlier condenser microphones. Today, electret microphones account for about 90 percent of the two billion microphones produced annually, powering devices like smartphones, laptops, hearing aids, and smart speakers worldwide.
First-hand measurement across 2 sources
We measured how 2 outlets covered this story. No outlet gave this story a measurable political slant — there is no left–right reading to report. Overall sentiment is positive (72/100). Lens Score 28/100.
Outlets measured: economictimes, economictimes. See how each one headlined and framed the same story in the source comparison below.
AI Analysis
Sentiment was consistent across outlets (70–75/100), indicating broadly factual reporting rather than editorialising.
Coverage timeline
economictimes broke this story on 30 Sept, 02:16 pm. Other outlets followed.