Smart Hub Audio Processing for Privacy and Interoperability
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Solution Overview
Problem
Smart home devices with electronic assistants face a trade-off between privacy and functionality, as muting microphones to protect privacy limits device functionality, and interoperability issues between devices from different vendors lead to fragmented control and privacy concerns.
Innovation Solution
A system that processes audio locally or remotely to determine suitable electronic assistants for user commands, passing only the command rather than audio recordings, enabling functionality while maintaining privacy by using an artificial intelligence overlay for interoperability and secure data handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If microphones are muted to protect privacy, then privacy is improved, but device functionality deteriorates
Solution Approach 1:
A hub device acts as an intermediary between smart devices and users. The hub receives audio commands, processes them to extract text, and transmits only the text data to the target smart device. This mediator approach allows privacy protection (audio not transmitted to cloud or target devices) while maintaining functionality (commands are successfully executed).
Solution Approach 2:
The system extracts only the essential information (command text) from the audio input, discarding the raw audio data. By taking out only what is necessary for command execution and leaving behind the privacy-sensitive audio content, the system achieves both privacy protection and functional operation.
2Measurement precision
If audio is transmitted to remote locations for analysis, then command recognition accuracy is improved, but privacy concerns worsen
Solution Approach 1:
The hub serves as a local intermediary that performs audio-to-text conversion without transmitting audio to remote cloud services. This local processing intermediary eliminates the need for remote audio analysis while maintaining command recognition functionality through on-device text processing.
Solution Approach 2:
The system replaces the mechanical approach of transmitting audio files over networks with a digital text-based communication approach. By converting audio to text locally and transmitting only text data, the system substitutes a privacy-invasive mechanism with a privacy-preserving alternative that achieves the same command recognition goal.
3Adaptability or versatility
If all smart devices use the same audio processing approach, then interoperability is improved, but flexibility and privacy control deteriorate
Solution Approach 1:
The hub provides universal compatibility with multiple smart device vendors and protocols while maintaining a single unified interface for audio input. This universal hub approach enables interoperability across different device ecosystems without requiring each device to implement its own audio processing, thereby preserving user privacy control centrally.
Data Source
AI summary
In some examples, a method is disclosed. The method includes detecting, by a smart device, an audible utterance of a trigger word. The method also includes, responsive to the detection of the audible utterance of the trigger word, recording audio via the smart device. The method also includes processing, via the smart device, the recorded audio to determine whether the recorded audio contains a command for the smart device or a different smart device to perform an action. The method also includes, responsive to determining that the recorded audio includes a command for the smart device or a different smart device to perform the action, determining whether the command is serviceable by the smart device without involvement of the different smart device. The method also includes, responsive to determining whether the command is serviceable by the smart device without involvement of the different smart device, taking action regarding the command.