Voice Input Preprocessing for Automatic Service Selection in Vehicles
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Solution Overview
Problem
Current speech processing systems in transportation vehicles require users to manually select and activate specific voice assistants, which can be cumbersome and distracting, especially when multiple services are available.
Innovation Solution
A method and device that preprocess voice inputs by adding signal words to automatically direct them to available speech processing services, ensuring correct activation and reducing user intervention, with a response filter to evaluate and present plausible results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If users manually select and activate specific voice assistants, then service selection accuracy is improved, but operation complexity and user distraction increase
Solution Approach 1:
The system automatically determines which speech processing service to use based on the content of the voice input itself, without requiring user intervention. The preprocessing module analyzes the voice input and autonomously selects the appropriate service, making the system self-activating and eliminating manual selection steps.
Solution Approach 2:
The system performs preliminary analysis of the voice input content before service activation, preparing the appropriate service selection in advance. The preprocessing module evaluates the voice input characteristics and pre-determines the suitable speech processing service, so that when the user speaks, the correct service is already ready to process the input.
2Adaptability or versatility
If multiple speech processing services are available, then service versatility is improved, but service selection complexity increases
Solution Approach 1:
The preprocessing module acts as an intermediary between the user's voice input and the multiple speech processing services. It analyzes the voice input content and mediates the selection process by determining which service is most appropriate, thereby managing the complexity of having multiple services without exposing it to the user.
Solution Approach 2:
The system changes the parameter of service selection from user-chosen to system-determined based on voice input characteristics. By analyzing parameters such as the content, context, and characteristics of the voice input, the system dynamically selects the appropriate service, transforming the selection mechanism from manual to automated based on input parameters.
3Ease of operation
If automatic service selection is implemented, then ease of operation is improved, but recognition reliability may deteriorate
Solution Approach 1:
The system incorporates feedback mechanisms where the preprocessing module continuously analyzes the voice input and adjusts service selection based on the analysis results. The system receives feedback from the speech processing services about their processing capabilities and performance, and uses this feedback to refine future service selections, thereby maintaining high reliability through iterative improvement.
Data Source
AI summary
A method, a device, and a computer-readable storage medium having instructions for processing a speech input. A speech input from a user is received and preprocessed for at least one of two or more available speech-processing services. The preprocessed speech inputs are transferred to one or more of the available speech-processing services.