Binaural Beat Sound Adjustment with Stereo Audio Mixing
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Solution Overview
Problem
Existing headphones lack the ability to enhance user experience by inducing specific brainwave states through binaural beats, while maintaining high-quality audio listening.
Innovation Solution
A sound adjustment device with a background sound source, frequency adjuster, mixer, and output port that generates and adjusts mono audio signals to create frequency differences in left and right ear audio signals, mixing them with external audio signals to induce desired brainwave states without affecting the main audio experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If headphones provide high-quality stereo audio listening, then audio quality is improved, but the ability to induce brainwave states through binaural beats is lost
Solution Approach 1:
The patent merges two functions into one headphone system: high-quality stereo audio playback and binaural beat generation for brainwave induction. The audio signal processing circuit integrates both the external audio signal path and the background sound generation path, allowing simultaneous operation of music playback and brainwave induction without compromising either function
Solution Approach 2:
The headphones are designed with multi-functionality to serve both as high-fidelity audio devices and as brainwave induction tools. The frequency adjuster and background sound source are integrated into the existing audio architecture, enabling the same device to perform multiple functions: standard stereo listening, binaural beat generation, and combined modes
2Reliability
If frequency differences are introduced to induce brainwave states, then brainwave induction effect is improved, but audio signal complexity increases
Solution Approach 1:
The audio signal processing is segmented into distinct functional modules: a background sound source generates base frequencies, a frequency adjuster modifies these frequencies to create binaural beats, and a mixer combines them with external audio. This segmentation allows complex brainwave induction processing to be achieved through simple, dedicated circuit blocks rather than a monolithic complex system
Solution Approach 2:
The patent introduces an intermediary background sound signal that acts as a carrier for brainwave induction. This background sound is mixed with the external audio signal at appropriate levels, serving as a mediator that enables brainwave effects without directly interfering with the primary audio content. The frequency adjuster acts as another intermediary, transforming background sounds into the specific frequency differences needed for binaural beats
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 induces brainwave states such as enhanced focus, relaxation, and stress relief by automatically changing frequency differences, while preserving high-quality stereo listening.
Implementation Method 1
through which a user perceives binaural beats
Data Source
AI summary
A sound adjustment device including a background sound source, an external sound source receiver, a frequency adjuster, a mixer, and an output port. A background audio signal provided by the background sound source is a mono audio signal. The external sound source receiver is used to receive an external audio signal. The frequency adjuster is used to receive and adjust the background audio signal into a left ear background audio signal and a right ear background audio signal. A first frequency of the left ear background audio signal and a second frequency of the right ear background audio signal have a frequency difference. The mixer is used to mix the external audio signal and the left ear background audio signal into a left ear audio signal, and to mix the external audio signal and the right ear background audio signal into a right ear audio signal.