Dynamic adjustment of audio detected by a microphone array

A system, comprising:

• one or more processors;
• and
• one or more memory storing computer-readable instruction that, upon execution by the one or more processors, configure the system to:
• receive noise data that represents noise received by a device prior to a detection of an utterance;
• receive audio data that represents audio received by the device, the audio data generated by the device during a time interval that has a start and an end, the start corresponding to a beginning of the utterance, the end corresponding to at a selection by the device of an audio beam associated with a direction towards an utterance source;
• generate, by at least performing first Fast Fourier Transform (FFT) operations on the noise data, first spectral measurement data that indicates an average amplitude of the noise;
• determine a first value that is associated with a noise attenuation factor and with a time point of the time interval, the noise attenuation factor linearly increasing during the time interval between a first minimum value at the start of the time interval and a first maximum value at the end of the time interval;
• generate an attenuated amplitude of the noise by multiplying the average amplitude by the first value, the attenuated amplitude associated with the time point;
• generate, by at least performing second FFT operations on the audio data, second spectral measurement data that indicates second values of an amplitude of the audio during the time interval, the second values comprising a second value associated with the time point;
• generate an adjusted value of the amplitude of the audio by subtracting the attenuated amplitude from the second value, the adjusted value associated with the time point;
• determine a third value that is associated with an utterance compensation factor and with the time point, the utterance compensation factor linearly decreasing during the time interval between a second maximum value at the start of the time interval and a second minimum value at the end of the time interval;
• generate fourth spectral measurement data that indicates fourth values of an amplitude of the utterance during the time interval, the fourth values comprising a fourth value that is associated with the time point, the fourth value determined by multiplying the adjusted value by the third value;
• and
• determine, based at least in part on the fourth spectral measurement data, that additional audio data associated with the device is to be processed.