Destination Device Audio-Visual Separation for Multi-Source Projection
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Solution Overview
Problem
Current projection technologies cause audio-visual confusion when multiple source devices project audio and video onto a single destination device, leading to a reduced projection effect due to audio mixing and increased complexity.
Innovation Solution
A method where a destination device dynamically adjusts speaker devices corresponding to screen areas or subareas, allowing each source device to project audio and video separately, improving the association of audio with video for the projectionist's senses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple channels of audio data from multiple source devices are simultaneously output through all speakers for audio mixing, then audio data synthesis is achieved, but audio-visual confusion occurs on the projectionist's senses and projection effect is greatly reduced
Solution Approach 1:
The patent segments the audio output by dividing the speaker devices into different groups, where each group corresponds to a specific source device. This allows audio from different sources to be played through different speaker groups rather than mixing all audio through all speakers, thereby maintaining audio synthesis capability while enabling clear audio-visual association for projectionists.
Solution Approach 2:
The patent applies local quality by assigning different audio output characteristics to different speaker devices based on their spatial positions. Each speaker device or group is configured to output audio from a specific source device, creating localized audio zones that correspond to the visual content displayed from each source device, thus improving audio-visual association.
2Quantity of substance
If a larger quantity of projection source devices are connected to a single destination device, then more content sharing is achieved, but audio-visual confusion is exacerbated and projection effect is reduced
Solution Approach 1:
The patent segments the audio output system into multiple independent channels, where each source device is assigned to specific speaker devices. This segmentation allows multiple source devices to be connected simultaneously without their audio streams mixing through all speakers, thereby supporting content sharing from multiple devices while maintaining clear audio-visual association for each projectionist.
Solution Approach 2:
The patent introduces a spatial dimension to audio output by associating specific speaker devices with specific source devices based on their physical positions. This dimensional approach allows the system to handle multiple source devices by distributing their audio outputs across different spatial channels, thereby scaling the system's capacity to handle multiple projections while preserving audio-visual association.
3Area of stationary object
If all speaker devices are used to play all audio data from multiple source devices, then audio output coverage is maximized, but audio-visual correspondence is lost
Solution Approach 1:
The patent segments both the audio data streams and the speaker devices into corresponding groups. Each source device's audio data is assigned to specific speaker devices, creating distinct audio channels that maintain correspondence with their visual sources. This segmentation preserves audio-visual correspondence while still achieving comprehensive audio output coverage through the coordinated operation of multiple speaker groups.
Solution Approach 2:
The patent makes the speaker device system multi-functional by enabling each speaker device or group to serve multiple purposes: they can individually output audio from a specific source device while collectively providing comprehensive audio coverage. This universality allows the system to maintain audio-visual correspondence for each source while achieving overall audio output coverage through the combined capability of all speaker devices.
Data Source
AI summary
A video playing method includes receiving first data sent by a first source device and second data sent by a second source device, where the first data comprises first display data and first audio data, and where the second data comprises second display data and second audio data; displaying the first display data in a first screen subarea of the destination device and the second display data in a second screen subarea of the destination device; and playing the first audio data by using a first speaker device and the second audio data by using a second speaker device, where the first speaker device is an external speaker wirelessly connected with the destination device, and where the second speaker device is a built-in audio module of the destination device.