USound Piezoelectric MEMS Will Boost Battery Life of Wireless Earbuds up to 12 Hours

Austrian microspeaker company USound has just received an additional equity tranche increasing the last financing round to $30 million. According to the company, these added funds will accelerate the evolution of the next MEMS microspeaker generation, with the potential to boost the battery life of wireless earbuds and other wearable devices up to 12 hours. USound hopes to enable a market transition from electrodynamic drivers to solid-state technology with the next-generation of its Ganymede piezoelectric MEMS.

In this article, Joel Hatch explains how to build a variable frequency synchronous motor controller to control turntable speed. Now that turntables are back in force, this excellent project not only allows some knowledge about a vital part of the motor's rotational speed adjustment, but it also dives into one of the most crucial aspects of a record player for anyone interested in a little DIY or restoration projects. This article was originally published in audioXpress, December 2010.

As a result of a new distribution agreement, Peerless by Tymphany’s high-end drivers are now available globally through global electronic components distributor Digi-Key Electronics. Since 2005, Tymphany has manufactured drivers under the Peerless, Vifa, and Tymphany brands. Recently all these brands were unified under a single brand name: Peerless by Tymphany.