Multichannel Audio Playback Using Orientation-Based Sound Shaping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing audio playback technologies do not effectively adapt sound reproduction based on the orientation of playback devices, limiting the flexibility and optimization of sound output in various environments.
Innovation Solution
The technology determines the orientation of playback devices and adjusts sound reproduction accordingly, allowing for stereophonic or monaural signals, frequency ranges, and channel distribution based on the device's orientation, and can modify audio data streams to optimize sound output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If audio playback devices use fixed sound reproduction configuration, then device complexity is reduced, but adaptability to different environments and orientations deteriorates
Solution Approach 1:
The patent implements dynamic sound reproduction configuration that automatically adapts to the playback device's orientation. The system dynamically switches between different audio channel assignments (e.g., from horizontal stereo to vertical stereo) based on detected device orientation, allowing the audio output to adapt to various mounting positions without requiring multiple fixed configurations or manual user setup.
Solution Approach 2:
The system changes audio reproduction parameters (channel assignments, speaker mappings) based on device orientation parameters detected by sensors. When the device orientation changes, the system automatically adjusts audio parameters such as routing left/right channels to appropriate speakers, enabling the same hardware to adapt to different environments through parameter modification rather than structural changes.
2Manufacturing precision
If audio channels are assigned based on device orientation, then sound field shaping is improved, but ease of operation deteriorates
Solution Approach 1:
The audio system performs self-configuration based on automatic orientation detection. The playback device autonomously determines its orientation using built-in sensors and automatically assigns audio channels without requiring user intervention. This self-service approach eliminates the need for manual audio configuration while maintaining precise sound field shaping adapted to the device's actual orientation.
Solution Approach 2:
The system uses feedback from orientation sensors to continuously monitor device position and automatically adjust audio channel assignments. The sensor feedback loop enables the system to detect orientation changes and respond by reconfiguring audio output, ensuring accurate sound field shaping while removing the burden of manual configuration from the user.
3Adaptability or versatility
If multiple speaker configurations are supported, then versatility of playback positions is improved, but device complexity increases
Solution Approach 1:
The patent implements a universal audio processing system that handles multiple playback orientations (horizontal, vertical, ceiling-mounted) using a single unified architecture. The system universally supports various speaker configurations (full-range, tweeters, mid-range drivers) and automatically adapts channel assignments based on orientation, eliminating the need for separate configuration systems for each playback position while maintaining versatility.
Data Source
AI summary
Techniques for shaping sound based on a speaker orientation are disclosed. In an embodiment, an audio data stream is obtained by a zone player having one or more speaker drivers, an orientation of the zone player is determined, and sound is reproduced by the zone player based on the orientation. The sound may be further shaped based on other states of the zone player in addition to orientation. The overall sound may be shaped from one zone player or from a collection of zone players.