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US 2008/0167868 A1Published application
Systems and methods for intelligent control of microphones for speech recognition applications
AssigneeInternational Business Machines Corporation
InventorsDimitri Kanevsky, Mahesh Viswanathan
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Abstract
Systems and methods for intelligent control of microphones in speech processing applications, which allows the capturing, recording and preprocessing of speech data in the captured audio in a way that optimizes speech decoding accuracy.
Claims18
An audio processing system, comprising:
- a microphone control system to (i) control capturing of audio input to a microphone system and to (ii) selectively output speech segments within captured audio to a speech decoding system;
- a speech activity detection system to detect timing of speech activity events, wherein the speech activity events are indicators of speech input to the microphone system, and wherein the timing of speech activity events are used to determine the speech segments within captured audio;
- and
- an acoustic quality control system to detect conditions regarding capturing of audio input to tire microphone system, which can result in captured audio with acoustic characteristics that adversely affect a decoding accuracy of the captured audio.
1 more element
An audio processing system, comprising
- a microphone system, comprising a microphone for capturing audio input to the microphone system;
- a microphone manager to (i) control capturing of audio input to the microphone system, (ii) control recording of captured audio, (iii) detect speech activity events, (iv) determine speech segments of captured audio comprising speech data based on timing of one or more detected speech activity events, (v) selectively output speech segments within captured, audio to a speech decoding system;
- and to (vi) detect an environmental condition regarding capturing of audio, which can result in captured audio with acoustic characteristics that adversely affect a decoding accuracy of the captured audio;
- a sensor system comprising one or more sensor devices to generate sensor data which is processed by the microphone manager to detect speech activity events and environmental conditions.
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Dependencies are inferred from the claim text.