Adaptive Audio Transformation for Noise Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traffic noise, particularly from freeways and busy streets, significantly affects residents' quality of life, and existing sound barrier solutions and indoor insulation methods have not been effective in adequately reducing noise levels.
Innovation Solution
A sound processing device that monitors ambient noise and feeds back transformed audio, such as ocean waves or rain sounds, into the environment to alleviate noise pollution, using sensors and processors to select and generate audio based on environmental conditions and user preferences, while also detecting potential hazards like engine failures or events like breaking glass.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If sound barrier walls are constructed to reduce traffic noise, then noise from vehicles at higher elevations is reduced, but noise from trucks at lower elevations (8 feet from ground) requires much taller walls, increasing device complexity and cost
Solution Approach 1:
The patent replaces the mechanical sound barrier wall system with an electronic audio processing system. The device captures ambient audio including traffic noise, processes it through multiple filters and algorithms, and outputs transformed audio that reduces perceived noise levels without requiring physical barriers. This substitutes mechanical noise blocking with electronic noise transformation.
Solution Approach 2:
The system changes the parameters of the audio signal itself rather than changing the physical environment. By applying digital signal processing techniques including filtering, gain adjustment, and transformation algorithms, the system modifies the audio parameters (frequency, amplitude, timbre) to reduce noise perception without altering physical space or requiring taller structures.
2Object-affected harmful factors
If building insulation and multi-pane windows are installed to reduce indoor traffic noise, then noise transmission is reduced, but the device complexity and installation cost increase
Solution Approach 1:
The patent replaces the mechanical insulation and window system with an electronic audio processing system. Instead of physically blocking noise transmission through insulation materials and multi-pane windows, the device captures the audio signal, processes it electronically, and outputs transformed audio that reduces perceived noise levels, substituting physical barriers with electronic transformation.
Solution Approach 2:
The system introduces an intermediary audio processing stage between the noise source and the listener. The device acts as a mediator by capturing the ambient audio, applying transformation algorithms, and delivering the processed audio output, thereby intervening in the noise transmission path without requiring physical insulation or window modifications.
3Object-affected harmful factors
If transformation audio is propagated into the environment to alleviate noise pollution, then ambient noise perception is reduced, but feedback of the propagated audio may be detected by the monitor, creating a feedback loop
Solution Approach 1:
The patent implements a feedback mechanism where the monitor detects audio in the environment including potentially the propagated transformation audio. The system uses this feedback information to adjust its processing, allowing it to distinguish between ambient noise and its own output, thereby maintaining reliability while continuing to reduce perceived noise levels.
Solution Approach 2:
The system dynamically adjusts its operation based on detected conditions. By continuously monitoring the audio environment and adapting its processing parameters in real-time, the device can differentiate between external noise sources and its own propagated output, maintaining effective noise reduction while avoiding feedback loops through dynamic parameter adjustment.
Data Source
AI summary
A method and device for transforming ambient audio are provided. Example embodiments may include monitoring ambient audio proximate to a sound processing device located in an environment. The device may sense environmental conditions associated with the environment. Memory may be accessed to obtain transformation audio. The device may generate output transformation audio based on the transformation audio, the ambient audio, and the environmental conditions to provide modified output audio for propagation into the environment