Speaker Equalization by Device Orientation and Surface Position
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Solution Overview
Problem
Existing electronic devices fail to optimize audio playback based on the orientation and position of the device relative to a surface, leading to suboptimal sound quality and user experience.
Innovation Solution
The electronic device utilizes sensors such as cameras, proximity sensors, accelerometers, and gyroscopes to determine its position and orientation relative to a surface, adjusting equalization settings to enhance audio output based on stability, proximity, and user position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If audio playback is performed without equalization adjustment based on device orientation, then the audio output is simple and fast, but the sound quality is suboptimal and inconsistent across different positions
Solution Approach 1:
The equalization settings are dynamically adjusted based on the detected device orientation and position relative to the surface. The system transitions from static equalization to dynamic equalization that adapts in real-time as the device moves or is repositioned, ensuring optimal audio quality for each orientation state.
Solution Approach 2:
The system uses sensor data (accelerometer, gyroscope, proximity sensor) to provide feedback about device orientation and position, which then feeds back into the audio processing pipeline to adjust equalization settings. This closed-loop feedback mechanism ensures audio quality consistency by continuously adapting to changes in device state.
2Reliability
If sensors are added to detect device position and orientation, then audio quality can be optimized, but the device complexity increases
Solution Approach 1:
The patent leverages existing multi-functional sensors in the device (accelerometer, gyroscope, proximity sensor) that serve multiple purposes beyond audio optimization. These sensors are already part of the device's core functionality for orientation detection, screen rotation, and proximity management, so their reuse for audio equalization adds minimal complexity while delivering significant audio quality improvements.
Solution Approach 2:
The system uses the device's own existing sensors to detect its orientation and position, making the device self-aware of its state without requiring external measurement equipment. The device serves itself by utilizing its built-in sensor capabilities to automatically adjust audio equalization based on its own physical state.
3Reliability
If equalization settings are adjusted in real-time based on orientation changes, then audio quality improves, but processing time and energy consumption increase
Solution Approach 1:
Instead of continuously processing and adjusting equalization settings, the system implements periodic updates based on significant orientation changes detected by sensors. The equalization is recalculated and applied only when the device transitions between distinct orientation states, reducing unnecessary processing and energy consumption while maintaining audio quality during stable positions.
Solution Approach 2:
The system dynamically adjusts the frequency and timing of equalization updates based on device movement patterns. During periods of device stability, processing is minimized or paused, while during active repositioning, processing intensity increases. This dynamic processing strategy balances audio quality maintenance with energy efficiency.
Data Source
AI summary
Embodiments are provided for receiving a request to output audio at a first speaker and a second speaker of an electronic device, determining that the electronic device is oriented in a portrait orientation or a landscape orientation, identifying, based on the determined orientation, a first equalization setting for the first speaker and a second equalization setting for the second speaker, providing, for output at the first speaker, a first audio signal with the first equalization setting, and providing, for output at the second speaker, a second audio signal with the second equalization setting.