US Patent 10477294 Multi-device audio capture

A system and method includes a first device (e.g., a primary or primary earbud) that detects first audio corresponding to an utterance and a second device (e.g., a secondary or secondary earbud) that detects second audio corresponding to the utterance. The first device determines first audio data corresponding to the first audio and the second device determines second audio data corresponding to the second audio. The first device determines a first quality metric corresponding to the first audio data, and the second device determines a second quality metric corresponding to the second audio data. The second device transmits the second quality metric to first device, which compares it to the first quality metric. If the first device determines the second quality metric is better, it transmits the second audio data to a third device (e.g., a smartphone) and enters a power-saving state.