5. The computer-implemented method of claim 1 , further comprising: before processing the third audio data and the fourth audio data with the neural network classifier, processing the first audio data and the second audio data with the neural network classifier to determine that the first audio data has a higher signal-to-noise ratio (SNR) than the second audio data.
1. A computer-implemented method comprising: capturing, during a first time period, first audio using a first microphone; capturing, during the first time period, second audio using a second microphone; determining first audio data corresponding to the first audio; determining second audio data corresponding to the second audio; determining, using at least the first audio data and the second audio data, third audio data corresponding to a first direction; determining, using at least the first audio data and the second audio data, fourth audio data corresponding to a second direction; and processing the third audio data and the fourth audio data with a neural network classifier to determine that the third audio data better represents speech than does the fourth audio data.