Voice Control System Sleep Mode Audio Buffering
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Solution Overview
Problem
Existing voice control systems require a user to wait for the system to wake up after detecting a wake-up speech before they can issue control commands, leading to inefficiency and increased power consumption.
Innovation Solution
A voice control system that operates in sleep and working modes, featuring an audio detection module to temporarily store wake-up speech data and generate an indication signal, allowing the control module to wake up and process control speech immediately, eliminating the need for user waiting and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a voice wake-up mechanism is used to activate the voice control system, then power consumption is reduced, but the user needs to wait for the system to wake up before issuing control commands
Solution Approach 1:
The audio detection module performs preliminary action by continuously monitoring audio data and temporarily storing it in a buffer before the voice control system is fully activated. This allows the system to be ready to process control speech immediately after wake-up detection, eliminating the waiting time for users while still maintaining low power consumption during sleep mode.
2Ease of operation
If the voice control system operates continuously in working mode, then the user can immediately issue control commands, but power consumption increases significantly
Solution Approach 1:
The system dynamically switches between sleep mode and working mode based on wake-up detection. The audio detection module operates continuously at low power, while the main voice control system remains in sleep mode until activated. This dynamic state transition optimizes power consumption while maintaining quick response capability.
Solution Approach 2:
Audio data is preliminarily captured and stored in the buffer during sleep mode, so when the system transitions to working mode, processing can begin immediately without waiting for data collection, achieving fast response with minimal power consumption.
3Speed
If the audio detection module continuously monitors audio data, then wake-up speech can be detected promptly, but power consumption increases
Solution Approach 1:
The audio detection module performs partial monitoring by focusing only on detecting wake-up speech patterns rather than processing all audio data in full detail. This selective detection approach achieves prompt wake-up response while consuming minimal power, reserving full processing power for when the system is actively in working mode.
Data Source
AI summary
Disclosed is a voice control system and method thereof. The voice control system is used in an electronic device and works in a sleep mode and a working mode. The voice control system comprises an audio detection module, an audio codec and a control module. Under the sleep mode, the audio detection module continually detects whether there is a wake-up speech in a received first audio data. If yes, the audio detection module generates a first indication signal and temporarily stores the following first audio data. When the control module is woken up by the first indication signal, the voice control system enters the working mode. Under the working mode, the control module drives the audio codec to read and process the temporarily stored first audio data to recognize control speech in the first audio data and to accordingly control the electronic device.