Microphone Switching for Voice Input Reliability
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Solution Overview
Problem
Current devices face challenges in effectively capturing voice input due to the lack of adequate solutions for managing multiple microphones, often resulting in failure to capture certain voice inputs.
Innovation Solution
A device with a processor and storage that determines the active state of microphones, provides notifications for switching between them, and autonomously selects the best microphone based on audio signals and user input, such as wake-up words, to ensure optimal voice input processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple microphones are available for voice input processing, then the device can capture audio from different sources and improve voice input processing capabilities, but the device complexity increases and it becomes difficult to manage which microphone is active
Solution Approach 1:
The system provides visual feedback to users about which microphone is currently active and provides audible feedback when voice input is detected at a different microphone than the active one. This feedback mechanism helps users understand the current state without requiring complex manual management of multiple microphones.
Solution Approach 2:
The system automatically determines which microphone is active by detecting voice input and automatically switches between microphones based on where voice input is received. This self-service approach eliminates the need for users to manually manage microphone selection, reducing complexity while maintaining versatility.
2Reliability
If the device automatically switches between microphones based on voice input detection, then voice input capture reliability improves, but the system requires continuous monitoring and processing which increases computational resource usage
Solution Approach 1:
The system monitors audio input continuously but only performs full processing and automatic switching when voice input is actually detected. This partial action approach maintains reliability for voice capture while reducing unnecessary computational processing during periods when no voice input is present.
Solution Approach 2:
The system continuously monitors which microphone is receiving audio input in advance, so when voice input is detected, the active microphone state is already determined and ready for immediate processing. This preliminary monitoring ensures reliability without requiring intensive computational resources at the moment of voice detection.
3Ease of operation
If the device provides notifications to inform users about active microphone state, then user awareness and control improve, but additional processing steps and system overhead are required
Solution Approach 1:
The system uses visual indicators that change appearance (analogous to color changes) to show users which microphone is active. This provides clear user awareness through simple visual feedback without requiring complex notification systems or additional processing overhead.
Solution Approach 2:
The system provides simple visual feedback about microphone status and audible feedback when voice input is detected at a different microphone. This feedback approach improves ease of operation with minimal system overhead by using straightforward notification mechanisms rather than complex systems.
Data Source
AI summary
In one aspect, a device may include at least one processor and storage accessible to the at least one processor. The storage may include instructions executable by the at least one processor to determine an operative microphone of the device from among plural available microphones and take one or more actions at the first device based on determining the operative microphone. The one or more actions may include, for example, presenting an indication at the device that a first microphone is the operative microphone, and/or switching the operative microphone from one available microphone to another available microphone at which audible input is already being received.