Real-Time Speech Boundary Detection for Accurate Command Capture
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing speech control systems for medical apparatuses face a trade-off between rapid processing times and accurate capture of operator intentions, leading to potential errors or frustration due to incomplete or incorrect command execution.
Innovation Solution
A method for processing audio signals that recognizes the beginning and end of speech input in real-time, using adaptive time intervals based on continuous analysis, to provide a speech data stream for accurate command recognition, avoiding premature termination or unnecessary waiting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If speech analysis is performed rapidly to reduce waiting time, then processing speed is improved, but accuracy of capturing operator intention deteriorates
Solution Approach 1:
The speech analysis process is divided into two distinct segments: a first speech analysis performed rapidly during speech input to enable quick response, and a second, more comprehensive speech analysis performed after speech input ends to ensure complete and accurate capture of the operator's intention. This segmentation allows the system to balance speed and accuracy by applying different analysis depths at different stages.
Solution Approach 2:
The first speech analysis is performed as a preliminary action during the speech input phase, providing quick preliminary results that reduce waiting time. This preliminary analysis prepares the system for faster response while the more thorough second analysis ensures complete accuracy, resolving the contradiction between speed and precision.
2Measurement precision
If speech analysis is performed completely and accurately, then capture of operator intention is improved, but processing time increases
Solution Approach 1:
The comprehensive speech analysis is segmented into two phases: an initial rapid analysis during speech input that provides quick feedback, and a final detailed analysis after speech input completes that ensures complete accuracy. This prevents the operator from waiting for the full comprehensive analysis while still achieving it for final accuracy.
Solution Approach 2:
The speech analysis process maintains continuity by performing the first analysis continuously during speech input, providing ongoing useful action and quick response. The second analysis then completes the process with comprehensive accuracy, ensuring both speed and completeness without interruption.
Data Source
AI summary
In a method for processing an audio signal, the audio signal is continuously analyzed substantially in real time from a recognized beginning of the speech input to provide a speech analysis result. The speech analysis result is used to dynamically define an end of the speech input. A speech data stream is provided based on the audio signal between the beginning and the end. The speech data stream may be further analyzed to identify one or more speech commands.