PCM Audio Signal Processing with EQ and Reverb to Reduce Listening Fatigue
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
PCM-transformed digital audio is perceived as fatiguing and less enjoyable compared to analog audio, leading to complaints from recording engineers and musicians.
Innovation Solution
An audio processing system that includes specific equalization, reverberation, and volume settings, measured to produce an audio output with improved health responses on human physiological functions, as quantified by bio-sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If PCM transformation is used to convert analog audio to digital format, then digital transmission and storage efficiency is improved, but audio quality and listener enjoyment deteriorate
Solution Approach 1:
The patent applies parameter changes by modifying the PCM digital signal characteristics through specific equalization settings (frequency and gain adjustments) and reverberation parameters (decay time, mix ratio, diffusion). These parameter modifications transform the digital signal to reduce perceived fatigue while preserving transmission efficiency benefits.
Solution Approach 2:
The patent introduces an intermediary audio processing system that acts between the PCM digital signal source and the listener. This intermediary applies reverberation effects and equalization processing to mediate the interaction, transforming the harsh digital signal into a more listener-friendly form without sacrificing digital transmission advantages.
2Device complexity
If standard PCM processing is used, then device complexity is reduced, but physiological health benefits deteriorate
Solution Approach 1:
The patent employs specific parameter settings for equalization (frequency points with designated gain values) and reverberation (decay time, mix ratio, diffusion coefficients) to transform standard PCM processing into a health-beneficial audio treatment while maintaining reasonable system complexity.
Solution Approach 2:
The patent applies preliminary audio processing actions by pre-configuring equalization and reverberation parameters before audio playback. This preliminary transformation of the digital signal prepares it to have positive physiological effects on listeners, addressing health concerns before they manifest.
Data Source
AI summary
System and method for processing and adjusting PCM digital audio signals using specific reverberation and equalization settings that have been determined to improve various physical health parameters measurements, as determined by conducting bio-signal testing. The system entails converting the audio signal to digital format, a digital system processor that processes the audio signal using an equalization, a reverberation and a volume setting that is measured to produce an audio output signal that has more beneficial health response on human physiological functions than an unprocessed PCM digital signal or a base measurement without any audio signal, as measured by at least one bio-sensor attached to a listener. Accordingly, the invention improves at least one physiological function of the listener as measured using bio-sensors in the Avatar health testing bio-sensor measuring system.