TV Audio Ducking for Clear Smartphone Guidance Playback
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Solution Overview
Problem
The issue of overlapping audio output from a mobile device and a television, such as a smartphone and a TV, causes inconvenience for visually impaired users due to difficulty in clearly hearing guidance audio when both devices are used simultaneously.
Innovation Solution
An electronic apparatus and method that includes a processor configured to control the audio volume of the TV based on instructions from an external device, such as a smartphone, to decrease the TV's audio volume when guidance audio is output by the external device, and restore the volume based on control instructions, while also managing audio for device operations and events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the TV outputs content audio at normal volume while the mobile device outputs guidance audio, then the TV content audio quality is maintained, but the guidance audio becomes difficult to hear clearly due to overlapping sounds
Solution Approach 1:
The TV detects the output of guidance audio from the mobile device in advance and proactively lowers its content audio volume before the guidance audio is fully output, preventing the harmful overlap effect from occurring. This preliminary counter-action ensures that the guidance audio remains clear and audible.
Solution Approach 2:
The TV dynamically adjusts its content audio volume based on the real-time state of guidance audio output from the mobile device. When guidance audio is detected, the TV lowers its volume; when guidance audio stops, the TV restores its volume to normal levels, creating a flexible and adaptive audio management system.
2Reliability
If the TV automatically lowers audio volume when guidance audio is detected, then guidance audio clarity is improved, but the TV content audio volume control becomes more complex
Solution Approach 1:
The mobile device provides feedback information to the TV about its guidance audio output state. The TV uses this feedback to automatically adjust its content audio volume, creating a closed-loop control system that simplifies the overall complexity by distributing intelligence between devices.
Solution Approach 2:
The communication interface acts as an intermediary that transfers control instructions and state information between the mobile device and TV. This mediator simplifies the implementation by providing a standardized mechanism for coordination without requiring complex direct integration between the devices.
3Ease of operation
If the TV maintains normal audio volume throughout content playback, then the TV content audio quality is preserved, but visually impaired users cannot clearly hear guidance audio from the mobile device
Solution Approach 1:
The TV changes the audio volume parameter dynamically based on the guidance audio output state. By adjusting this physical parameter in response to external conditions, the system ensures accessibility for visually impaired users while maintaining overall audio quality during normal playback.
Data Source
AI summary
An electronic apparatus may include at least one processor configured to control the electronic apparatus, wherein the at least one processor is configured to execute at least one instruction to: control a speaker to play content at a first volume; receive a first control instruction from the external device through a communication interface, the first control instruction being for decreasing an audio volume of the content while the external device outputs guidance audio for guiding a user input; control the speaker to decrease the audio volume of the content based on the first control instruction; receive a second control instruction from the external device through the communication interface, the second control instruction being for restoring the audio volume of the content to the first volume; and control the speaker to restore the audio volume of the content to the first volume based on the second control instruction.