Acoustic Echo Cancellation Logic for Dynamic Orientation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Video telephony systems face challenges in maintaining audio quality and data precision due to static microphone and speaker configurations, leading to issues like audio-video offset and increased bandwidth consumption when devices are repositioned during communication sessions.
Innovation Solution
The system dynamically adjusts audio input and output parameters, including equalization, DSP settings, and echo cancellation, based on the orientation and position of the microphone array relative to the display device, using sensors and acoustic echo cancellation logic to ensure high-quality audio performance without disrupting the communication session.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If static microphone and speaker configurations are used in video telephony systems, then device structure is simple, but audio quality deteriorates when devices are repositioned during communication sessions
Solution Approach 1:
The patent implements dynamic audio parameter adjustment based on the real-time orientation of the display device. The system continuously monitors display orientation using sensors and dynamically adjusts equalization, echo cancellation, and noise suppression parameters to maintain optimal audio quality regardless of device position, transforming the static audio configuration into a dynamic adaptive system.
Solution Approach 2:
The system changes audio processing parameters (equalization, echo cancellation, noise suppression) based on detected display orientation. Different orientation states correspond to different parameter sets, allowing the audio characteristics to be optimized for each specific device position without requiring physical reconfiguration of microphones or speakers.
2Reliability
If dynamic audio parameter adjustment is implemented based on display orientation, then audio quality is maintained during device repositioning, but system complexity increases
Solution Approach 1:
The system employs a feedback mechanism where sensors continuously monitor display orientation and feed this information to the audio processing subsystem. Based on the detected orientation, the system automatically adjusts audio parameters and applies appropriate signal processing algorithms, creating a closed-loop control system that maintains audio quality without user intervention.
Solution Approach 2:
The audio system performs self-adjustment based on orientation detection. The system automatically selects and applies the appropriate audio processing profile without requiring manual user configuration or external intervention, enabling the device to adapt to different positions autonomously during communication sessions.
3Adaptability or versatility
If multiple audio processing modes are supported for different orientations, then adaptability is improved, but computing resource consumption increases
Solution Approach 1:
The patent divides the audio processing space into discrete orientation segments or categories (e.g., portrait mode, landscape mode, specific angle ranges). Each segment has pre-configured optimal audio parameters and processing algorithms. This segmentation allows the system to quickly switch between predefined modes rather than continuously calculating optimal parameters, reducing computational overhead while maintaining adaptability.
Data Source
AI summary
An electronic device includes a microphone array to capture audio input data, a speaker array to render audio output data for playback; one or more sensors to detect an orientation of the microphone array, acoustic echo cancellation logic, and an interface. The acoustic echo cancellation logic applies acoustic echo cancellation to the audio input data to form echo-cancelled audio input data based on the orientation of the microphone array. The interface transmits the echo-cancelled audio input data over a communications channel as part of an audiovisual communication system.