Voice Device Proximity Selection via Acoustic Energy Comparison
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Solution Overview
Problem
In scenarios with multiple intelligent voice devices, users often face confusion when multiple devices respond simultaneously to the same wake-up word, leading to unclear interactions.
Innovation Solution
A method and device that calculate the energy values of wake-up words in voice information from multiple devices, determining the device closest to the user by sound volume, and ensuring only that device responds, thereby providing a unique interaction experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple devices use identical wake-up words, then device accessibility is improved, but user confusion increases due to simultaneous responses
Solution Approach 1:
The patent applies local quality by differentiating device responses based on spatial proximity. Each device maintains the same wake-up word for accessibility, but the system identifies and selects the device closest to the user based on acoustic energy detection, creating localized response behavior that resolves the confusion of simultaneous responses.
Solution Approach 2:
The patent introduces an intermediary mechanism (acoustic energy detection and comparison system) that mediates between multiple devices and the user. This intermediary evaluates the acoustic signal characteristics to determine which device should respond, preventing direct simultaneous responses and eliminating user confusion.
2Productivity
If devices respond simultaneously to wake-up words, then system responsiveness is improved, but information clarity deteriorates due to overlapping responses
Solution Approach 1:
The patent implements feedback by having the system detect acoustic energy levels from multiple devices, compare these levels, and selectively enable responses based on the comparison results. This feedback loop ensures that only the appropriate device responds, maintaining information clarity while preserving system responsiveness through the wake-up word detection mechanism.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach ensures a clear and intended response from the device closest to the user, enhancing user experience by distinguishing device proximity and preventing simultaneous interactions.
Implementation Method 1
calculating an energy value of the wake-up word in the voice information from the plurality of terminal devices
Data Source
AI summary
A method for selectively interacting with multi-devices is provided. The method includes the following steps: receiving identical voice information transmitted by a plurality of terminal devices respectively; performing voice recognition on the received voice information; calculating energy of a wake-up word in respective voice information; and comparing the energy of one wake-up word with another, and transmitting feedback information to the terminal devices according to an energy comparison result and a voice recognition result. By calculating the energy of the wake-up word in respective voice information transmitted by respective devices, the distances between respective device and a user can be distinguished. A unique response can be ensured by determining that the device closest to the user responds to the user's request, thus ensuring the user experience.