Public Address Systems TRIZ Cases
- Location-Based Playlist Generation via Server-Side Media Matching
A server collects location history and media content information from network-enabled playback systems to provide relevant playlists to mobile devices.
- Transducer Sensor on Moving Component for Distortion Correction
A sensor mounted on a transducer moving component measures acceleration to determine position and output distortion metrics.
- Audio Output Path Control for Simultaneous Multi-Source Playback
A terminal manages independent audio output paths to reproduce multiple audio sources simultaneously through connected devices.
- Redundant Wireless Receiver Network for Low-Latency Audio
A redundant real-time wireless receiver network uses multiple Remote Digital Antennas to deliver digital audio signals via a digital bus.
- Audio Watermarking for Meeting Howl Prevention
Devices embed audio watermarks to detect nearby meeting participants, preventing feedback loops that cause disruptive howls.
- Spatial Audio Virtualization for Conference Calls
A spatial audio processing block applies directional filters to participant inputs, creating distinct virtual seating positions for each user.
- Audio Input Interface Detection via Energy Value Analysis
A detection system identifies active audio input interfaces by comparing signal energy values across multiple ports.
- Digital Assistant Trigger Detection Using Multi-Microphone Segmentation
Segmented microphone arrays detect spoken triggers to reduce processing time and power consumption.
- Audio Processor Frequency Band Filtering for Alert Perceptibility
An audio processor filters non-priority signals by suppressing specific frequency bands to allow clear priority alert playback.