Audience (ADNC -3%) is buying Sensor Platforms, a developer of software and algorithms that analyze the motion/context data provided by a phone's sensors, for $41M in cash.
Sensor's products can be integrated with 3rd-party motion sensors (gyroscopes, acceleromoters, etc.) and sensor hubs, both to optimize apps/services for a particular context and to improve power efficiency. Apple has included a sensor hub (the M7) in its latest-gen iPhones and iPads, and various chipmakers are offering solutions for Android OEMs.
Audience says the purchase positions it to "deliver compelling solutions based on the fusion of voice and motion." It arrives after Cirrus Logic made a couple of acquisitions that could help it better compete against Audience's voice processors.