Abstract: Low-frequency characteristics serve as primary metrics for evaluating the acoustic performance of modern microspeakers. However, conventional microspeakers exhibit flat low-frequency in-ear ...
Abstract: Multi-input frequency shift keyying can overcome the problem of low band utilization rate in the process of binary frequency shift keyying, and has a wide practical application range. In ...
Sewing machines looked simple, but their inner workings were anything but. Engineers had to invent an entirely new way of sewing to make machines possible. Tiny mechanical movements worked in perfect ...
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