Mobile Audio Output Control Using Virtual Path Isolation

The patent segments the audio output by creating separate virtual output paths for each application. The sound control unit forms distinct virtual paths (e.g., first virtual output path for first application, second virtual output path for second application) and can selectively activate or mute specific paths. This segmentation allows users to isolate desired sounds by controlling individual application paths without affecting others, resolving the contradiction between accessing multiple sources and isolating desired audio.

The patent introduces a sound control unit as an intermediary between applications and the output device. This unit receives sound data from multiple applications, manages virtual output paths, and controls which application's sound is actually output. Users interact with this intermediary through a unified interface rather than searching through individual application settings, significantly reducing the time and effort required to control sound output while maintaining full control capability.

The patent creates virtual copies of output paths for each application instead of requiring complex real-time mixing and management of concurrent audio streams. Each application gets its own virtual output path copy that can be independently controlled. This copying approach maintains the versatility of concurrent audio capability while simplifying management, as users can selectively activate or mute individual virtual paths without dealing with complex audio stream interactions.