Location-Based Voice Recognition for Multi-User Authentication
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Solution Overview
Problem
Voice-controlled devices face challenges in distinguishing between multiple users and authenticating audio commands, particularly in environments with multiple users and when users move around, as existing voice recognition systems can be spoofed and struggle to associate audio signals with the correct user.
Innovation Solution
A location-based voice recognition system that correlates the source location of audio signals with the user's physical location to authenticate and authorize voice commands, using a combination of acoustic localization and user localization techniques to determine the source location and user identity, thereby enhancing security and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If voice recognition algorithms are used for user authentication, then user authorization can be performed with minimal physical input, but the system becomes vulnerable to spoofing attacks using recorded or synthesized voice inputs
Solution Approach 1:
The patent introduces location information as an intermediary verification factor between the voice recognition system and the user authentication process. By correlating the source location of the audio signal with the user's physical location, the system adds an additional layer of verification that prevents spoofing attacks, while still maintaining ease of operation through voice commands.
2Adaptability or versatility
If voice-controlled devices process audio signals from multiple users, then the device can serve multiple users, but it becomes difficult to distinguish which user is providing which voice command
Solution Approach 1:
The patent applies local quality by associating each audio signal with its specific source location. Instead of treating all audio inputs uniformly, the system determines the geographic location where each voice command originates and uses this location information to accurately attribute the command to the correct user, thereby maintaining measurement precision in multi-user environments.
3Reliability
If the system correlates source location with user physical location for authentication, then security and accuracy are improved, but the system complexity increases
Solution Approach 1:
The patent implements a location determination module that serves multiple functions: it determines the source location of audio signals, correlates this with user physical locations, and provides location-based verification for authentication. By making this module multi-functional, the system achieves improved authentication accuracy without proportionally increasing overall system complexity.
Data Source
AI summary
Systems and methods for providing location based voice recognition include receiving, through a first microphone, an audio signal from a first user that includes an audio command requesting a service that requires user authorization before access to at least a portion of the service is granted. The user authorization is based on voice recognition (e.g., voice authentication and/or voice identification) of the audio signal. The source location of the audio signal is determined and a user location of the first user is determined. If the source location of the audio signal correlates with the user location, voice recognition on the audio signal may be performed. The first user may be authorized to access the service based on the voice recognition performed on the audio signal.