Single Volume Control for Mixed Call and Media Audio Balance
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Solution Overview
Problem
Existing audio systems lack an efficient method to control volume levels during simultaneous telephony and media playback, leading to imbalanced audio signal levels and user experience degradation.
Innovation Solution
A local device initiates a joint media playback session with a remote device, using a single volume control to adjust both downlink and audio signals independently, applying gain adjustments based on user input and sensor data to maintain balanced audio output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single volume control is used to adjust overall volume level during simultaneous telephony and media playback, then device complexity is reduced and ease of operation is improved, but audio signal balance between downlink and media content may deteriorate
Solution Approach 1:
The patent applies different gain adjustments to different audio signals (downlink signal and media content audio signal) based on their individual characteristics and requirements. The system determines separate gain values for each signal type, allowing the single volume control to maintain different signal levels for different audio sources, thus resolving the contradiction between ease of operation and audio signal balance.
2Manufacturing precision
If independent volume controls are provided for downlink signal and media content audio signal, then audio signal balance is improved, but device complexity increases and ease of operation deteriorates
Solution Approach 1:
The patent combines multiple volume controls into a single master volume control that can independently adjust the overall volume level. The system then applies different gain adjustments to the downlink signal and media content audio signal based on their individual requirements, achieving audio signal balance without requiring separate physical volume controls for each signal, thus reducing device complexity while maintaining audio quality.
3Manufacturing precision
If gain adjustments are applied to maintain audio signal balance, then audio signal balance is improved, but processing time and computational complexity increase
Solution Approach 1:
The system pre-determines gain values for different audio signals based on their characteristics and requirements. When volume adjustment is needed, the system applies the appropriate pre-calculated gain adjustments to maintain audio signal balance, reducing real-time computational complexity and processing time while ensuring audio quality.
Data Source
AI summary
A method performed by a first electronic device, the method includes, while engaged in a call with a second electronic device, initiating a joint media playback session in which the first and second electronic devices independently stream media content for synchronous playback; driving a speaker with a mix of a downlink signal of the call and an audio signal of the media content at an overall volume level; receiving a user-adjustment at a single volume control for the first electronic device to reduce the overall volume level; in response to the user adjustment, applying a first gain adjustment to the downlink signal and a second gain adjustment to the audio signal; and driving the speaker with a mix of the downlink signal and the audio signal at the reduced volume level.