Dynamic Guide Voice Control for Vehicle Interaction Accuracy
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Solution Overview
Problem
Existing vehicle guide voice output systems face disadvantages when a voice interaction function is installed, as they often turn off the guide voice output during interaction processing, leading to reduced voice recognition accuracy and listening ease for users.
Innovation Solution
A system that dynamically controls the output of vehicle-related guide voices based on the processing stage of interaction-related processing, allowing guide voice output during certain stages without affecting voice recognition accuracy or user listening ease, and suppressing guide voice output during stages that would negatively impact these factors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the guide voice output function is turned off during interaction related processing, then voice recognition accuracy is improved and listening ease is improved, but the user receives no guide voice information during the interaction period
Solution Approach 1:
The system dynamically adjusts the guide voice output based on the processing stage of interaction related processing. During the voice recognition processing stage, guide voice output is suppressed to improve recognition accuracy. During other stages (before voice recognition starts or after it completes), guide voice output is enabled to provide information to the user. This dynamic switching resolves the contradiction by making the system adaptable to different operational contexts.
2Loss of information
If the guide voice output function is turned on during interaction related processing, then guide voice information is provided to the user, but voice recognition accuracy is lowered and listening ease is lowered
Solution Approach 1:
The interaction related processing is segmented into different stages: a voice recognition processing stage and other stages. The system applies different guide voice output control strategies to each stage. During the voice recognition processing stage, guide voice output is turned off to ensure accurate recognition. During other stages, guide voice output is enabled to inform the user. This segmentation allows the system to optimize for different objectives at different times.
3Ease of operation
If guide voice is output during voice recognition processing, then user information needs are met, but the mixture of user voice and guide voice reduces recognition accuracy
Solution Approach 1:
The system extracts and isolates the voice recognition processing stage from other processing stages. During this extracted stage, guide voice output is completely suppressed to prevent any mixture with user voice input. This ensures that the voice recognition system only processes pure user input without contamination from system-generated guide voices, thereby maintaining high recognition accuracy while still meeting user information needs during other stages.
Data Source
AI summary
A guide voice output control system includes a voice output control unit having a function of outputting a guide voice in response to a trigger and a function of executing interaction related processing having a reception stage for receiving voice, a recognition stage for recognizing voice, and an output stage for outputting voice based on a recognition result, in which the voice output control unit controls the output of the guide voice according to the processing stage of the interaction related processing when the trigger is generated during the execution of the processing, and dynamically controls the output of the guide voice according to whether or not the processing stage is a stage that does not affect the accuracy of voice recognition or listening difficulty of a user even if the guide voice is output.