Voice Interaction System Eliminates Wake-Up Words via Feature Matching
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Solution Overview
Problem
Current voice interaction methods require a wake-up word for each interaction, making them complicated and prone to incorrect responses, especially when false wake-ups occur at inappropriate times, leading to a poor user experience.
Innovation Solution
A method that determines a text corresponding to a voice signal based on its features, calculates a matching degree between reference and target voice features, and assesses the possibility of the signal being an executable command, allowing for more accurate and intelligent voice interaction control by deciding whether and how to respond to the signal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wake-up word is required for each voice interaction, then false wake-up responses can be prevented, but interaction complexity increases and user experience deteriorates
Solution Approach 1:
The patent extracts the wake-up word requirement from the voice interaction process, allowing voice commands to be executed without requiring users to say a wake-up word first. The system continuously monitors voice signals and directly processes them as potential commands, eliminating the unnecessary wake-up word step while maintaining accurate command execution through voice feature analysis and matching degree calculation.
2Reliability
If wake-up word is required for each interaction, then incorrect responses are reduced, but usage threshold increases
Solution Approach 1:
The system performs self-service by continuously monitoring and analyzing voice signals without requiring user initiation through wake-up words. The voice interaction device automatically detects voice features, calculates matching degrees against reference features, and executes commands when confidence thresholds are met, making the system self-activating and reducing the usage threshold to near-zero.
3Reliability
If wake-up word is required, then system can distinguish valid commands, but information processing efficiency decreases
Solution Approach 1:
The system performs preliminary action by pre-calculating and storing reference voice features for various commands during system initialization. When a voice signal is received, the system quickly compares it against the pre-prepared reference features using efficient matching degree calculation, eliminating the need for complex real-time analysis and significantly improving information processing efficiency while maintaining accurate command identification.
Data Source
AI summary
According to embodiments of the present disclosure, a method, apparatus, device, and computer readable storage medium for voice interaction are provided. The method includes: determining a text corresponding to the voice signal based on a voice feature of a received voice signal. The method further includes: determining, based on the voice feature and the text, a matching degree between a reference voice feature of an element in the text and a target voice feature of the element. The method further includes: determining a first possibility that the voice signal is an executable command based on the text. The method further includes: determining a second possibility that the voice signal is the executable command based on the voice feature.