Analog-to-digital converter (ADC) dynamic range enhancement for voice-activated systems
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United States of America Patent
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Oct 24, 2017
Grant Date -
Oct 27, 2016
app pub date -
Apr 24, 2015
filing date -
Apr 24, 2015
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Abstract
The dynamic range and power efficiency of a voice-activated system may be improved by dynamically adjusting the configuration of the voice-activated system's input path. In one embodiment, a first portion of audio may be received through an input path of the voice-activated system having a first configuration. A characteristic of the first portion of audio may be determined and the input path may be adjusted to a second configuration based on the determined characteristic. A second portion of audio may then be received through the input path having the second configuration, and speech analysis may be performed on the second portion of audio.
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