Apple Inc.

Samsung Electronics Co., Ltd.

John Bridle

Yoon Kim

Melvyn J Hunt

Thomas R Gruber

Joshua D Atkins

Mehrez Souden

Jeongsu Kim

Giljin Jang

Feipeng Li

Systems and processes for operating an intelligent automated assistant are provided. In accordance with one example, a method includes, at an electronic device with one or more processors, memory, and a plurality of microphones, sampling, at each of the plurality of microphones of the electronic device, an audio signal to obtain a plurality of audio signals; processing the plurality of audio signals to obtain a plurality of audio streams; and determining, based on the plurality of audio streams, whether any of the plurality of audio signals corresponds to a spoken trigger. The method further includes, in accordance with a determination that the plurality of audio signals corresponds to the spoken trigger, initiating a session of the digital assistant; and in accordance with a determination that the plurality of audio signals does not correspond to the spoken trigger, foregoing initiating a session of the digital assistant.

Detecting a trigger of a digital assistant

Systems and processes are disclosed for dynamically adjusting a speech trigger threshold, which can be used in triggering a virtual assistant. Audio input can be received via a microphone. The received audio input can be sampled, and a confidence level can be determined of whether the sampled audio input includes a portion of a spoken trigger. In response to the confidence level exceeding a threshold, a virtual assistant can be triggered to receive a user command from the audio input. The threshold can be dynamically adjusted in response to perceived events (e.g., events indicating a user may be more or less likely to initiate speech interactions, events indicating a trigger may be difficult to detect, events indicating a trigger was missed, etc.), thereby minimizing both missed triggers and false positive triggering events.

Dynamic thresholds for always listening speech trigger

A system and method of speech recognition involving a mobile device. Speech input is received () on a mobile device () and converted () to a set of phonetic symbols. Data relating to the phonetic symbols is transferred () from the mobile device over a communications network () to a remote processing device () where it is used () to identify at least one matching data item from a set of data items (). Data relating to the at least one matching data item is transferred () from the remote processing device to the mobile device and presented () thereon.

Speech recognition involving a mobile device

A speech recognition method, medium, and system. The method includes detecting an energy change of each frame making up signals including speech and non-speech signals, and identifying a speech segment corresponding to frames that include only speech signals from among the frames based on the detected energy change.

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Cheltenham, United Kingdom

John Bridle