In-Ear Headphone Acoustic Testing With Integrated Sound Collection
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Solution Overview
Problem
Consumers face difficulty in evaluating the sound quality of headphones due to the high cost and complexity of professional audio testing equipment, making it impractical for ordinary consumers to determine the quality and cost-effectiveness of headphones.
Innovation Solution
An in-ear headphone testing system that includes a to-be-tested headphone, a terminal device, and a testing device with a base, sound collection module, and a control chip, which processes sound signals to obtain test results without requiring additional external devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If professional audio devices and electroacoustic testing systems are used for accurate acoustic testing, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent combines multiple testing functions (sound output control, sound signal collection, acoustic parameter processing) into a single integrated testing device. The device merges the terminal device's audio output capability with a built-in sound collection module and control chip that processes acoustic parameters, eliminating the need for separate professional audio devices and reducing system complexity while maintaining measurement precision.
Solution Approach 2:
The testing device is designed with multi-functionality, serving as both a sound output device (through the terminal device) and a sound collection device (through the built-in sound collection module). This universal design allows a single device to perform multiple testing functions, reducing the need for multiple specialized devices and simplifying the overall testing system.
2Measurement precision
If professional audio devices are used for headphone testing, then measurement precision is improved, but cost increases
Solution Approach 1:
The patent creates a simplified version of professional testing equipment by implementing essential testing functions within a consumer-grade terminal device. The sound collection module and control chip replicate the core functionality of expensive professional devices, providing accurate acoustic parameter measurement at a fraction of the cost, making testing accessible to ordinary consumers.
Solution Approach 2:
The invention utilizes components that are already present in common terminal devices (microphone, processor, speaker), which are relatively inexpensive and readily available. This approach replaces expensive, specialized professional audio equipment with affordable, mass-produced consumer electronics components, significantly reducing testing costs while maintaining adequate measurement precision for consumer needs.
3Measurement precision
If multiple professional devices are required for testing, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
By merging sound output control and sound collection functionality into a single testing device, the patent eliminates the need for consumers to coordinate multiple separate devices. The integrated design allows users to perform complete acoustic testing through one device, significantly improving ease of operation while maintaining measurement precision through the built-in sound collection module and control chip.
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 consumers to assess relevant acoustic parameters of in-ear headphones conveniently and efficiently, providing test results on sound sensitivity and distortion without the need for expensive professional equipment.
Implementation Method 1
The sound collection module is configured to collect a sound signal outputted by the in-ear headphone
Data Source
AI summary
Provided are an in-ear headphone testing system and method. The system includes a to-be-tested in-ear headphone, a terminal device, and a testing device, the terminal device is configured to control the to-be-tested in-ear headphone to output a preset sound, and the testing device includes a base, a sound collection module, a coupling cavity, and a control chip. The control chip is built into the base, the base is connected to the coupling cavity, the sound collection module is placed between the base and the coupling cavity, and the coupling cavity is used for placing the tested in-ear headphone. The sound collection module is configured to collect a sound signal outputted by the tested in-ear headphone. The control chip is configured to process the sound signal to obtain a test result.