Audio Output Volume Adjustment for Consistent Perceived Loudness
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Solution Overview
Problem
Users experience inconsistent audio volume when switching between different electronic devices and environments due to varying device capabilities and ambient sound levels, leading to a frustrating listening experience.
Innovation Solution
An electronic device measures user preferences and environmental conditions, using distance sensors and ambient sound level detection to automatically adjust audio output volume and simulate the perceived sound level across different devices, ensuring a uniform listening experience by compensating for device differences and environmental changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If users manually adjust volume on each device, then device-specific volume control is achieved, but inconsistent listening experience occurs across different devices and environments
Solution Approach 1:
The system automatically measures ambient sound levels and adjusts audio output without user intervention. The electronic device self-regulates volume based on environmental conditions and user preferences, eliminating the need for manual adjustments while maintaining consistent listening experience across devices.
Solution Approach 2:
The system continuously monitors ambient sound levels using microphones and distance sensors, then feeds this information back to automatically adjust audio output. This closed-loop feedback mechanism ensures consistent perceived volume despite changes in environment or device switching.
2Adaptability or versatility
If device capabilities vary, then device functionality is diverse, but volume differential issues arise
Solution Approach 1:
The system dynamically changes audio output parameters including volume level, equalization settings, and spatial audio configuration based on the specific device being used. By adjusting these parameters according to device capabilities and ambient conditions, the system maintains consistent perceived loudness across diverse devices.
Solution Approach 2:
The system creates a universal audio experience that works consistently across multiple different device types. By measuring ambient conditions and adapting output, the same audio content delivers consistent perceived volume whether played through headphones, speakers, or other audio devices.
3Adaptability or versatility
If ambient sound levels change, then environmental adaptability is needed, but additional volume adjustment is required
Solution Approach 1:
The device automatically detects ambient sound level changes using microphones and distance sensors, then self-adjusts audio output without requiring user intervention. This eliminates the complexity of manual volume adjustment while maintaining adaptability to environmental changes.
Solution Approach 2:
The system performs preliminary measurements of ambient sound levels and user position before audio playback begins. This advance preparation allows the system to pre-adjust volume and other parameters, eliminating the need for real-time manual adjustments when environmental conditions change.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a seamless and consistent audio experience by dynamically adjusting volume and simulating sound levels, maintaining relative perceived volume as the user moves between devices and environments, enhancing user satisfaction and reducing volume differential issues.
Implementation Method 1
the electronic device or the audio output device uses a time of flight sensor to determine a user position
Implementation Method 2
measuring the ambient sound level of the environment
Data Source
AI summary
In some examples, a method includes establishing a wireless connection between a source electronic device and an audio output device. In some examples, the method includes using a user audio preference and audio output information to determine an audio adjustment. In some examples, the method includes adjusting a volume of the audio output device based on the determined audio adjustment.