MEMS Speaker Boosts Wireless Earbud Battery Life

Austrian micro-speaker company USound is accelerating the evolution of its next MEMS micro-speaker generation, boosting the battery life of wireless earbuds and other wearable devices up to 12 hours. The company’s current MEMS micro speaker offers more than 50% extended battery life for wireless earbuds compared to systems with electro-dynamic speakers. The soon available next generation will integrate an energy recovery audio amplifier. Allegedly, it will remarkably cutback the power consumption of the device allowing up to 12 hours of battery life for applications like true wireless earbuds and other wearable devices.

Besides decreasing the audio system’s power consumption, the components reduced size grants diminishing the diameter and weight of the housing of any wearable, potentially gaining in comfort and ergonomics for the end consumer. According to its maker, because of its design straightforwardness, its production can be fully automatized, cutting costs down in manufacturing.

USound MEMS silicon microspeakers technology is based on a membrane mounted on several cantilevers built from lead zirconate titanate (PZT). When voltage is applied to this material, the crystals in the PZT expand or shrink making the membrane vibrate which leads to the generation of sound waves. With this approach, less heat is produced as well as less sound distortions due to fewer moving parts, creating an overall more robust system when compared conventional speaker systems. Furthermore, USound’s products are described as the first fully integrated smart speakers with additional functions such as voice fingerprint, inherent microphone functionality, and ADCs.

Free Newsletter

Like this article? Subscribe to FierceSensors!

The sensors industry is constantly changing as innovation runs the market’s trends. FierceSensors subscribers rely on our suite of newsletters as their must-read source for the latest news, developments and analysis impacting their world. Register today to get sensors news and updates delivered right to your inbox.

USound’s micro audio systems, including its energy recovery audio amplifier, will be available for selected customers by Q3 2019. For more infobits, visit USound.


Suggested Articles

U.S. trade groups SEMI and SIA say semi workers need to make on-site visits to chip plants abroad for installation and repairs

IC Insights analyst sees economic softness that began in 2019 hitting analog sales in many regions again in 2020.

Omdia forecast a $1.7B reduction in revenues for auto power semiconductors