Simultaneous acoustic event detection across multiple assistant devices

A system comprising:

• one or more processors;
• and
• memory storing instructions that, when executed, the one or more processors are operable to:
• detect, via one or more microphones of an assistant device located in an ecosystem that includes a plurality of assistant devices, audio data that captures an acoustic event, wherein the acoustic event comprises a hotword detection event;
• process, using an event detection model that is stored locally at the assistant device, the audio data that captures the acoustic event to generate a measure associated with the acoustic event, wherein the event detection model that is stored locally at the assistant device comprises a hotword detection model that is trained to detect whether a particular word or phrase is captured in the audio data;
• detect, via one or more additional microphones of an additional assistant device located in the ecosystem, additional audio data that also captures the acoustic event, the additional assistant device being in addition to the assistant device, and the additional assistant device being co-located in the ecosystem with the assistant device;
• process, using an additional event detection model that is stored locally at the additional assistant device, the additional audio data that captures the acoustic event to generate an additional measure associated with the acoustic event, wherein the additional event detection model that is stored locally at the additional assistant device comprises an additional hotword detection model that is trained to detect whether the particular word or phrase is captured in the additional audio data;
• determine, based on both the measure and the additional measure, whether the acoustic event detected by at least both the assistant device and the additional assistant device corresponds to an occurrence of an actual acoustic event;
• and
• in response to determining that the acoustic event corresponds to an occurrence of the actual acoustic event, cause one or more components of an automated assistant to be activated at one or more of:
• the assistant device, the additional assistant device, or a further additional assistant device.

A non-transitory computer-readable storage medium storing instructions that, when executed, cause one or more processors to perform operations, the operations comprising:

• detecting, via one or more microphones of an assistant device located in an ecosystem that includes a plurality of assistant devices, audio data that captures an acoustic event, wherein the acoustic event comprises a hotword detection event;
• processing, using an event detection model that is stored locally at the assistant device, the audio data that captures the acoustic event to generate a measure associated with the acoustic event, wherein the event detection model that is stored locally at the assistant device comprises a hotword detection model that is trained to detect whether a particular word or phrase is captured in the audio data;
• detecting, via one or more additional microphones of an additional assistant device located in the ecosystem, additional audio data that also captures the acoustic event, the additional assistant device being in addition to the assistant device, and the additional assistant device being co-located in the ecosystem with the assistant device;
• processing, using an additional event detection model that is stored locally at the additional assistant device, the additional audio data that captures the acoustic event to generate an additional measure associated with the acoustic event, wherein the additional event detection model that is stored locally at the additional assistant device comprises an additional hotword detection model that is trained to detect whether the particular word or phrase is captured in the additional audio data;
• determining, based on both the measure and the additional measure, whether the acoustic event detected by at least both the assistant device and the additional assistant device corresponds to an occurrence of an actual acoustic event;
• and
• in response to determining that the acoustic event corresponds to an occurrence of the actual acoustic event, causing one or more components of an automated assistant to be activated at one or more of:
• the assistant device, the additional assistant device, or a further additional assistant device.