Adaptive Speaker Enclosure Volume for Portable Audio
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Solution Overview
Problem
Current multi-channel audio systems on portable devices, such as notebook computers, often produce weak and monotonous sound due to fixed speaker positions and limited space utilization, failing to adapt to different usage demands or scenarios.
Innovation Solution
A portable electronic apparatus with a processor and speaker enclosure volume adjusting device that detects usage demands to select and activate speakers, adjust enclosure volumes, and change audio frequency ranges, applying adaptive audio settings to optimize sound quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed speaker positions are used, then device structure is simple, but audio quality and sound field effect are weak and monotonous
Solution Approach 1:
The patent implements dynamic speaker activation where the system automatically selects and activates specific speakers based on the current audio mode and usage scenario. Instead of fixed speaker positions, the configuration changes dynamically - for example, activating only front speakers in movie mode or all speakers in music mode, thereby achieving varied audio quality without permanent complex hardware configurations.
Solution Approach 2:
The system changes operational parameters of speakers including activation status, enclosure volume, and audio frequency ranges based on different audio modes. By adjusting these parameters dynamically rather than changing physical hardware, the system achieves adaptability in audio quality while maintaining relatively simple device structure.
2Adaptability or versatility
If multiple speakers are activated, then audio frequency range is improved, but power consumption increases
Solution Approach 1:
The system activates only the necessary subset of speakers required for the current audio mode rather than all speakers continuously. For example, in video call mode only the front speaker is activated, while in music mode multiple speakers are activated to provide full frequency range. This partial activation approach ensures adequate audio performance while minimizing power consumption.
Solution Approach 2:
The speaker activation configuration changes dynamically based on audio mode detection. The system monitors the current usage scenario and adjusts which speakers are active accordingly, ensuring optimal audio frequency range coverage only when needed, thereby reducing overall power consumption compared to continuous full-speaker operation.
3Adaptability or versatility
If speaker enclosure volume is increased, then low frequency response is improved, but device size increases
Solution Approach 1:
The speaker enclosure volume is made dynamically adjustable rather than fixed. The system can increase the enclosure volume when low frequency response is needed (such as in music playback mode) and reduce it when compact size is prioritized (such as in video call mode), achieving adaptability in audio performance without permanently increasing device size.
Solution Approach 2:
The physical parameter of enclosure volume is changed based on audio mode requirements. By adjusting this parameter dynamically - expanding when bass response is needed and contracting when device portability is prioritized - the system achieves versatile audio frequency range coverage while maintaining a compact form factor for different usage scenarios.
Data Source
AI summary
A method and a portable electronic apparatus for adaptively adjusting a playback effect of speakers are provided. The portable electronic apparatus includes a speaker enclosure volume adjusting device and a processor coupled to the speakers and the speaker enclosure volume adjusting device. In the method, the processor detects a usage demand for the portable electronic apparatus and accordingly determines an audio mode. Based on the determined audio mode, the processor selects and activates multiple speakers, and adjusts an enclosure volume of at least one of the activated speakers, so as to change an audio frequency range of the at least one speaker and an overall audio frequency range covered by the activated speakers. Finally, the processor plays an audio through the activated speakers.