A first microphone is operated in a low power sensing mode, and a buffer at the first
microphone is used to temporarily store at least some of the phrase. Subsequently the first …

A microphone includes a microelectromechanical system (MEMS) circuit and an integrated
circuit. The MEMS circuit is configured to convert a voice signal into an electrical signal, and …

Streaming audio is received. The streaming audio includes a frame having plurality of
samples. An energy estimate is obtained for the plurality of samples. The energy estimate is …

A microphone assembly includes an acoustic sensor configured to produce an electrical
signal and an electrical circuit including a voice activity detector coupled to an output of the …

Analog signals are received from a sound transducer. The analog signals are converted into
digitized data. A determination is made as to whether voice activity exists within the digitized …

A system and method for speech quality detection is included. The method may include
receiving, at a computing device, a first speech signal associated with a particular user. The …

At a microphone, voice activity is detected in a data stream while simultaneously buffering
audio data from the data stream to create buffered data. A signal is sent to a host indicating …

(57) An external clock signal having a first frequency is received. A division ratio is
automatically determined based at least in part upon a second frequency of an internal …

An analog signal is received from an acoustic transducer. The analog signal is converted
into digital data. A determination is made as to whether acoustic activity exists within the …

A microphone assembly includes an acoustic sensor and a voice activity detector on an
integrated circuit coupled to an external-device interface. The acoustic sensor produces an …