Sound Producing Devices TRIZ Cases
- Real-Time Acoustic Processor for Low-Latency Active Noise Cancellation
A Real-Time Acoustic Processor generates anti-noise signals at high speed to minimize latency in active noise cancellation systems.
- Vehicle Sound Output Device Vibration Overlap
Coupling portions on an imaginary circle align vibration frequencies to ensure consistent sound wave output across varying exterior body sizes.
- Noise Reducing Sound Reproduction Using Low-Pass Filter Segmentation
Segmenting signal paths with low-pass filters preserves useful audio quality while removing ambient noise from the output.
- Acoustic Flex Joint Isolator for Logging Tools
Segmented composite isolator absorbs vibrational energy to improve signal purity while resisting high axial loads.
- Adaptive Filtering for Spatial Sound Reproduction
MIMO system with adaptive filtering compensates for wall reflections and crosstalk using psychoacoustic constraints.
- Fan Noise Cancellation via Active Control and Wind Pressure Compensation
An embedded controller adjusts speaker output using transfer functions to cancel fan noise while maintaining heat dissipation efficiency.
- Vehicle Active Noise Control Using External Source Detection
Active noise controller generates inverted acoustic signals to cancel unwanted external sounds entering the vehicle cabin.