Reducing device processing of unintended audio

An electronic device, comprising:

• one or more processors;
• a memory;
• and
• one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including instructions for:
• receiving an audio stream;
• determining a plurality of acoustic representations of the audio stream, wherein each acoustic representation of the plurality of acoustic representations corresponds to a respective frame of the audio stream;
• obtaining a respective plurality of scores indicating whether each respective frame of the audio stream is directed to the electronic device, wherein the obtaining comprises:
• determining, using a triggering model operating on the electronic device, for each acoustic representation, a score indicating whether the respective frame of the audio stream is directed to the electronic device;
• determining, based on the respective plurality of scores, a likelihood that the audio stream is directed to the electronic device;
• determining whether the likelihood is above or below a threshold;
• and
• in response to determining that the likelihood is below the threshold, ceasing to process the audio stream.

A method comprising:

• at an electronic device with one or more processors and memory:
• receiving an audio stream;
• determining a plurality of acoustic representations of the audio stream, wherein each acoustic representation of the plurality of acoustic representations corresponds to a respective frame of the audio stream;
• obtaining a respective plurality of scores indicating whether each respective frame of the audio stream is directed to the electronic device, wherein the obtaining comprises:
• determining, using a triggering model operating on the electronic device, for each acoustic representation, a score indicating whether the respective frame of the audio stream is directed to the electronic device;
• determining, based on the respective plurality of scores, a likelihood that the audio stream is directed to the electronic device;
• determining whether the likelihood is above or below a threshold;
• and
• in response to determining that the likelihood is below the threshold, ceasing to process the audio stream.