This month's audio and sound category includes 3 granted patents from 2 companies: Sony (2) and Voyetra Turtle Beach (1).
Sony patented technology for audio-based indoor positioning that uses stereo speakers and microphones to track user location for adaptive sound field control, plus a system where audio signals, voice sentiment, and ambient sound directly influence NPC behavior and game interactions in real-time. Voyetra Turtle Beach patented a game headset that analyzes audio tracks as they play to automatically trigger intelligent alerts for competitive gamers.
Sony received 2 patents that explore how audio can enable new forms of interaction in home entertainment and gaming. The first patent describes a positioning system that tracks a user's location inside a room by analyzing sound signals from just two stereo speakers, rather than the three or more that similar systems typically require. The system sends inaudible high-frequency signals (16-24 kHz) alongside normal music or game audio, then uses a neural network to process timing differences and power ratios captured by a microphone to determine the listener's 2D position for real-time sound field adjustments. The second patent covers a method for letting NPCs and game objects respond dynamically to characteristics extracted from player voice and ambient sound, including emotional sentiment detected in speech and rhythmic patterns in background audio. This allows games to react continuously to how players speak and what sounds are present, turning audio into an expressive input method beyond simple voice commands.
Voyetra Turtle Beach received 1 patent for a headset that performs audio analysis directly within the device hardware to generate context-aware alerts during gameplay. The system examines audio tracks in real-time and automatically identifies events worth flagging for competitive players, removing the need for game developers to pre-configure audio cues or for users to manually set up detection parameters. By embedding this intelligence into the headset itself rather than relying on external software, the technology provides adaptive audio notifications across different games without per-title configuration.
All data sourced from USPTO patent filings. Google Patents may take several weeks to index recent publications. If a link is unavailable, search for the patent number at USPTO Patent Public Search.