Adaptive Audio Output for Ambient Sound Awareness

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Audio output devices, such as headphones and speakers, often cause users to become less aware of their surroundings, making it difficult for others to get their attention, as they do not automatically adjust volume based on ambient noise or important sounds.

Innovation Solution

An intelligent audio output device equipped with audio sensors and a controller that detects ambient noise and user preferences, adjusting volume settings to prioritize important sounds, such as a person's name or conversation, and learns user preferences through initial setup and interaction data.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the audio output device plays music or audio presentations at a consistent volume, then the audio quality and user listening experience are maintained, but the user becomes less aware of surrounding sounds and important events

Engineering Contradiction:

Improveaudio listening experienceVSAvoidawareness of surrounding sounds

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The audio output device dynamically adjusts its volume based on ambient noise levels and detected important sounds. The controller continuously monitors the environment and modifies audio output parameters in real-time, transitioning from a static volume system to a dynamic one that adapts to changing conditions while maintaining reliable audio delivery.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The device uses audio sensors to detect ambient sounds and important events, feeding this information back to the controller which then adjusts the audio output accordingly. This feedback loop allows the system to maintain reliable audio playback while being aware of and responsive to surrounding conditions that require user attention.

Inventive Principle:

Principle #23Feedback

2Object-affected harmful factors

If the audio output device automatically adjusts volume based on ambient noise, then awareness of important sounds is improved, but the device complexity increases due to additional sensors and control mechanisms

Engineering Contradiction:

Improveawareness of important soundsVSAvoidsensors and control mechanisms

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The audio sensor serves multiple functions: it detects ambient noise levels for volume adjustment, identifies important sounds such as names being called, and provides environmental context for the controller. This multi-functionality reduces the need for separate specialized sensors, thereby limiting the increase in device complexity while still improving awareness of important sounds.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The controller automatically processes sensor data and makes volume adjustment decisions without requiring user intervention or complex external processing systems. The device self-regulates its audio output based on its own sensor inputs, simplifying the control architecture while maintaining improved awareness of important sounds.

Inventive Principle:

Principle #25Self-service

3Object-affected harmful factors

If the audio output device continuously monitors ambient sounds to detect important events, then the ability to prioritize important sounds is improved, but the energy consumption increases

Engineering Contradiction:

Improveprioritization of important soundsVSAvoidenergy consumption

Core Design Contradiction:

Object-affected harmful factorsVSUse of energy by moving object

Solution Approach 1:

The controller employs selective monitoring where it continuously scans for specific important sound patterns (such as recognized names or keywords) rather than analyzing all ambient sounds in detail. When an important sound is detected, the system then focuses its processing resources on that specific event, skipping unnecessary continuous analysis of non-critical background noise and thereby reducing overall energy consumption.

Inventive Principle:

Principle #21Skipping (Rushing through)

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

The device effectively reduces frustration by automatically adjusting audio settings to allow users to be more aware of their environment, ensuring they can hear important sounds while minimizing disruptions during various activities or locations.

Implementation Method 1

an audio sensor configured to detect ambient sound and noises around the audio output device, including directionality of the sound

Methodology Applied

Scientific EffectAcoustic-to-electrical transduction:

Data Source

PatentUS11705878B2Intelligent audio output devices

Publication Date: 2023.07.18 EBAY INC

AI summary

An audio output device may include one or more audio sensors configured to detect ambient sound and noises around the audio output device. The audio output device may include a controller configured to analyze the detected sound and noises and may adjust audio settings of the audio output device accordingly. In an embodiment, the controller may analyze and recognize that the detected noise is another person's attempt to get the user's attention or to talk to the user, such as audio sound of the user's name. In response, the controller may stop the audio output or lower the volume of the audio output.