MEMS technology shrinks loudspeakers

Miniature MEMS-based speakers could revolutionize speech and music reproduction in mobile communication devices. They combine the advantages of a large frequency bandwidth and high acoustic quality with the ability to generate very high sound levels. Nevertheless, they are so tiny that they can be integrated into headphones. Such micro-loudspeakers were developed by the Fraunhofer Institutes for Digital Med ...

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Audio: Headphone “Anti Thump” Delayed Output Rev 1.1

A long awaited refresh, to my previous "Anti Thump" headphone output delay circuit, designed back in 2011. The Idea behind the circuit is to introduce a small delay, during initial power up, to electrically  isolate and  protect equipment connected directly to an amplifier. Often, during power up, amplifiers can produce an audible thump, through speakers or headphones. This can lead to damage of the connect ...

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