Speaker Audio Resumption Control in Quiet Environments

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Solution Overview

Problem

Users of mobile devices often experience embarrassing loud audio outputs when switching applications or unlocking their phones, as audio from foreground applications can unexpectedly resume on the built-in speaker, leading to unwanted noise in quiet environments.

Innovation Solution

A method that detects when a mobile device is in a quiet environment by analyzing ambient noise and reduces the audio output from the speaker to prevent embarrassing noise, allowing users to choose between a reduced or normal audio level, or to cancel the output.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If audio output is automatically resumed on the built-in speaker when an application is switched to foreground, then audio continuity is maintained, but unexpected loud noise occurs in quiet environments causing user embarrassment

Engineering Contradiction:

Improveaudio continuityVSAvoidunexpected loud noise

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary detection of the audio environment before resuming audio output. When an application is switched to foreground, the system first analyzes the ambient noise level using the microphone and determines whether the current environment is quiet or noisy, then decides accordingly whether to resume audio output or keep it suspended, preventing unexpected loud noise while maintaining audio continuity when appropriate

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system uses the microphone to continuously monitor ambient noise levels and provides feedback to the audio management system. This feedback mechanism allows the system to adaptively adjust audio output behavior based on real-time environmental conditions, ensuring audio continuity in noisy environments while preventing unexpected noise in quiet settings

Inventive Principle:

Principle #23Feedback

2Adaptability or versatility

If the operating system distinguishes different audio output units and adjusts volume levels, then audio output is optimized for different devices, but the system cannot prevent loud speaker output in quiet environments

Engineering Contradiction:

Improveaudio output optimizationVSAvoidloud speaker noise in quiet environment

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The system dynamically adjusts audio output behavior based on real-time environmental conditions. Instead of using static volume settings for different audio output units, the system continuously monitors ambient noise levels and adaptively determines whether to resume audio output on the speaker, thereby optimizing audio output for the current environment while preventing harmful loud noise in quiet settings

Inventive Principle:

Principle #15Dynamics

3Ease of operation

If audio output is resumed immediately when unlocking the phone or switching applications, then user experience is smooth and continuous, but embarrassing noise occurs when the environment is quiet

Engineering Contradiction:

Improveaudio continuity experienceVSAvoidembarrassing loud noise

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

Before resuming audio output during device unlock or application switching, the system performs a preliminary environmental assessment by analyzing ambient noise levels. This preliminary action determines whether the current context is appropriate for audio resumption, ensuring smooth audio continuity experience in noisy environments while preventing embarrassing loud noise in quiet settings

Inventive Principle:

Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This method effectively prevents unexpected loud audio outputs in quiet environments, ensuring user privacy and comfort by dynamically adjusting audio levels based on environmental noise levels, while maintaining seamless audio continuity with minimal user interaction.

Implementation Method 1

the determining step comprises recording ambient noise using the microphone; the determining step further comprises analyzing the recorded ambient noise so as to determine a noise intensity value

Methodology Applied

Scientific EffectAcoustic detection: Sound

Data Source

PatentUS11895471B2Method for operating a device having a speaker so as to prevent unexpected audio output

Publication Date: 2024.02.06 ORANGE SA

AI summary

A method for operating an electronic device comprising a processing unit and a speaker is disclosed. The method comprises the following acts, performed by the processing unit: when detecting that a process implying audio output from the speaker is to be performed, determining (a) that the user is in a quiet environment; and performing (h) the process with a reduced level of audio output from the speaker.