Headphone Listening Apparatus Ambient Sound Trigger Detection
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Solution Overview
Problem
Existing headphones do not effectively notify users of ambient sounds outside the listening environment during audio playback, as they isolate users from external sounds and lack efficient mechanisms to detect and alert important external audio triggers.
Innovation Solution
A headphone listening apparatus and computer-program product that receive ambient audio signals, compare them to stored desired audio triggers, and transmit notification signals to the headphones to alert users of matching sounds, using microcontrollers, microphones, and classification algorithms to determine matches with varying tolerance levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If headphones provide acoustic isolation to play back audio privately, then audio playback quality is improved, but user awareness of ambient sounds deteriorates
Solution Approach 1:
The audio output is segmented into two separate channels: a first output for ambient sounds and a second output for audio playback. This allows the system to deliver both ambient sound awareness and audio playback quality simultaneously through different output paths, resolving the contradiction between isolation and awareness.
Solution Approach 2:
A processor acts as an intermediary between the microphone input and the outputs. It receives ambient sound signals, compares them against stored trigger sounds, and selectively outputs matched ambient sounds while allowing audio playback to proceed independently. This intermediary processing enables both functions to coexist without interference.
2Object-affected harmful factors
If headphones block external sounds to provide private listening, then privacy is improved, but detection of important external audio triggers deteriorates
Solution Approach 1:
The system performs preliminary action by storing reference trigger sounds in advance and continuously comparing incoming ambient sounds against these stored triggers. This pre-prepared comparison mechanism enables rapid detection of important external sounds without compromising privacy during audio playback.
Solution Approach 2:
The processor serves as an intermediary that selectively extracts and outputs only those ambient sounds that match stored triggers, while maintaining acoustic isolation for general listening. This intermediary function enables targeted detection of important external sounds without requiring full acoustic exposure.
3Loss of information
If headphones provide continuous ambient sound monitoring, then awareness of external events is improved, but energy consumption increases
Solution Approach 1:
The system extracts only the essential and relevant information from ambient sounds by comparing them against stored trigger sounds. Instead of processing and outputting all ambient sounds continuously, it selectively extracts only those sounds that match predefined triggers, significantly reducing energy consumption while maintaining awareness of important external events.
Solution Approach 2:
The system performs partial monitoring by focusing only on specific trigger sounds rather than analyzing the entire ambient sound spectrum continuously. This selective approach to sound monitoring reduces computational load and energy consumption while still providing effective awareness of important external events.
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
Enables users to be notified of important external sounds, such as doorbells or baby crying, during audio playback by attenuating main audio or providing audible alerts, improving awareness of external events without manual intervention.
Implementation Method 1
a microphone to receive the ambient sounds
Implementation Method 2
a speaker to output the notification signal
Data Source
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Figure 5
AI summary
In at least one embodiment, a headphone listening apparatus including an audio listening device is provided. The audio listening device is programmed to receive an incoming ambient audio signal indicative of an external ambient sound and to store a plurality of desired audio triggers. The audio listening device is further programmed to compare the external ambient sound to the plurality of desired audio triggers and to transmit a notification signal to headphones in response to the ambient sound being generally similar to a first desired audio trigger of the plurality of desired audio triggers. The headphones are programmed to provide an audio alert to a user to indicate the presence of the external ambient sound.