Apple has filed an application for a patent on wireless earbuds with noise-cancelling capabilities.
The application covers an invention aimed at improving the speech quality input by filtering out environmental noise. This is accomplished by determining which of two earbuds should transmit an acoustical signal to the mobile device.
A microphone in the earbud detects the environmental noise and, based on the output received from the earbud, the voice activity can be detected to reduce noise.
