Image Display Audio Signal Adaptation for Screen Sharing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
When using screen-sharing functions like Miracast, differences in audio specifications between the transmitting and receiving devices lead to variations in audio quality, with the receiving device often unable to match the quality of the transmitting device.
Innovation Solution
An image display apparatus that includes a network interface for communicating with external devices and a controller to obtain device information, determine if the external device's audio specifications meet certain criteria, process audio signals accordingly, and transmit optimized audio data to ensure high-quality audio output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If audio signals are transmitted without optimization based on receiving device specifications, then the transmitting device can maintain simple transmission processes, but the audio quality on the receiving device deteriorates due to specification mismatches
Solution Approach 1:
The transmitting device obtains device information from the receiving device before transmitting audio signals, and determines the audio specifications in advance. This preliminary action allows the system to prepare optimized audio data matching the receiving device's capabilities before transmission, thereby improving audio quality without adding complex processing during actual playback
Solution Approach 2:
The transmitting device changes audio parameters (such as sampling rate, bit depth, channel configuration) based on the receiving device's specifications. By adapting these parameters to match the receiving device's audio output capabilities, the system ensures high-quality audio reproduction while maintaining efficient transmission
2Reliability
If the transmitting device adapts audio signals to match the receiving device's specifications, then audio quality on the receiving device improves, but the processing complexity on the transmitting device increases
Solution Approach 1:
The transmitting device modifies audio parameters including sampling rate, bit depth, and channel configuration to match the receiving device's specifications. This parameter adaptation ensures that the audio signal is optimized for the receiving device's audio output capabilities, improving audio quality while maintaining efficient processing through standardized parameter adjustments
3Adaptability or versatility
If screen sharing is performed between devices with different audio specifications, then device compatibility and ease of use are improved, but audio quality consistency deteriorates
Solution Approach 1:
The transmitting device obtains device information from the receiving device and determines audio specifications to match the receiving device's capabilities. By dynamically adjusting audio parameters based on the receiving device's specifications, the system maintains broad device compatibility while ensuring consistent audio quality across different device pairs
Solution Approach 2:
The system uses device information feedback from the receiving device to adjust audio transmission parameters. The transmitting device receives specification information about the receiving device's audio capabilities and uses this feedback to optimize audio signal parameters, ensuring quality consistency across diverse device combinations
Data Source
AI summary
An image display apparatus according to an embodiment of the present disclosure includes: a display; a network interface configured to communicate with an external device; and a controller, the controller being configured to: obtain device information from the external device; based on the obtained device information, determine whether a specification of the external device in association with audio signal processing satisfies a predetermined criterion; based on a determination that the specification of the external device does not satisfy the predetermined criterion, transmit first audio data for predetermined content being displayed through the display; based on a determination that the specification of the external device does not satisfy the predetermined criterion, process an audio signal corresponding to the first audio data according to the specification of the external device; and generate second audio data corresponding to the processed audio signal to transmit the second audio data to the external device.