Speech Interaction Device Directional Audio Control
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Solution Overview
Problem
Current speech interaction devices are unable to clearly output audio to the intended speaker due to fixed sound volume and direction, making it difficult for the speaker to hear the audio effectively.
Innovation Solution
A speech interaction device that uses directional microphones and speakers to ascertain the direction of the speaker and control audio output, increasing directionality towards the speaker while adjusting sound volume and frequency bands for optimal clarity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If audio is output at predetermined sound volume and direction, then the device structure is simple, but the speech interaction partner cannot hear audio clearly
Solution Approach 1:
The patent implements dynamic audio output control by adjusting sound volume and direction based on the detected position of the speech interaction partner. The audio output is no longer fixed but adapts in real-time to the partner's location, enabling clear hearing while maintaining manageable system complexity through automated positional tracking.
Solution Approach 2:
The system uses feedback from position detection to continuously adjust audio output parameters. The detection unit provides real-time information about the speech interaction partner's position, and this feedback is used by the control unit to optimize audio direction and volume, creating a closed-loop system that improves auditory clarity.
2Ease of operation
If audio directionality is adjusted toward the speech utterer, then auditory clarity is improved, but the control system becomes more complex
Solution Approach 1:
The audio directionality is made dynamic by continuously adjusting the sound beam direction based on the detected position of the speech interaction partner. This dynamic adjustment improves auditory clarity while the system manages complexity through automated position tracking and control algorithms.
Solution Approach 2:
The system performs self-adjustment of audio directionality based on automatically detected partner position. The detection and control units work together to autonomously optimize audio output direction without requiring manual intervention, improving clarity while keeping the control system manageable through self-service operation.
3Adaptability or versatility
If multiple speakers are used to cover different directions, then audio coverage is improved, but the device complexity increases
Solution Approach 1:
The system dynamically selects and activates speakers based on the detected position of the speech interaction partner. Instead of all speakers operating continuously, the system adaptively engages only the necessary speakers for the current situation, improving audio coverage while managing device complexity through intelligent speaker selection.
Solution Approach 2:
The patent applies local quality by directing audio output specifically toward the speech interaction partner's location using appropriate speakers. Different speakers are optimized for different spatial zones, and the system activates the locally appropriate speaker based on partner position, improving targeted audio coverage while maintaining reasonable system complexity.
Data Source
AI summary
A speech interaction device includes an ascertaining section and a control section. The ascertaining section ascertains a direction of a speech utterer by audio emitted by the speech utterer. The control section controls directionality of audio output through a speaker when outputting audio toward the speech utterer, such that directionality of audio in the direction ascertained by the ascertaining section is higher than directionality of audio in other directions.