Audio Focus Stack Segmentation for Independent Cross-Device Playback
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Solution Overview
Problem
Existing audio output processing methods fail to maintain independent audio focus management across interconnected devices, leading to interference when switching between applications on different devices.
Innovation Solution
Implementing separate focus stacks for audio applications on different devices to manage audio focus information independently, allowing seamless switching and playback without interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single focus stack is used to manage audio focus information, then the system structure is simple, but audio playback on interconnected devices interferes with each other
Solution Approach 1:
The patent divides the single focus stack into multiple device-specific focus stacks (first focus stack for first electronic device, second focus stack for second electronic device). Each focus stack independently manages audio focus information for its corresponding device, preventing cross-device interference while maintaining simple individual structures.
2Ease of operation
If audio focus is shared across multiple devices, then the system is easy to operate, but audio applications on different devices cannot play independently
Solution Approach 1:
The patent segments audio focus management into device-specific domains. Each electronic device has its own focus stack that independently handles audio focus requests, allowing seamless switching between devices while ensuring independent audio playback capability for each device.
Solution Approach 2:
The patent introduces a device identifier as an intermediary to associate audio focus information with specific electronic devices. This mediator enables the system to track and manage audio focus state across devices without mixing their independent playback contexts.
3Adaptability or versatility
If one device hops an audio application to another device, then distributed audio experience is enabled, but the original device loses control over the audio focus
Solution Approach 1:
The patent uses device identifiers as intermediaries to maintain the relationship between hopped audio applications and their original devices. When an audio application is hopped from one device to another, the focus information retains the original device identifier, allowing the source device to continue managing and controlling the audio focus state.
Solution Approach 2:
The patent creates a copy of the focus stack structure for each electronic device involved in audio hopping. This copying mechanism ensures that each device has its own independent focus management instance, enabling distributed audio playback while preserving the control relationship through device-specific focus information copies.
Data Source
AI summary
An audio control method is applied to a first electronic device, a first audio application is installed on the first electronic device, and the first electronic device includes a first focus stack which is used to store focus information corresponding to an audio application that plays an audio via the first electronic device. The audio control method includes: creating a second focus stack which is used to store focus information corresponding to an audio application that plays an audio via a second electronic device; responding to a first instruction, placing first focus information of the first audio application on the top of the second focus stack, and notifying that the first audio application obtains an audio focus, to play an audio of the first audio application via the second electronic device when content of the first audio application is hopped to the second electronic device.