Digital Audio Equalization Profiles for Studio-Quality Playback
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Solution Overview
Problem
Current technologies fail to consistently produce studio-quality sound outside of recording studios, requiring expensive hardware and complex signal processing, and struggle to enhance audio quality in vehicles and mobile devices without significant cost or design complexity.
Innovation Solution
A method and system for digitally processing audio signals using a computer chip that applies a series of filters and equalization techniques, including low and high shelf filters, compressors, and graphic equalizers, to produce studio-quality sound across various devices and environments, including vehicles, using existing speaker systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If expensive hardware and advanced speaker design are used to reproduce studio-quality sound, then audio quality is improved, but cost increases
Solution Approach 1:
The patent replaces complex mechanical audio systems (expensive speakers, advanced hardware) with a digital signal processing system implemented in software/firmware on a microprocessor. The DSP system applies various filtering and equalization algorithms to transform ordinary audio signals into studio-quality output, eliminating the need for costly physical audio components.
2Manufacturing precision
If complex signal processing is applied to enhance audio quality, then clarity and brightness are improved, but device complexity increases
Solution Approach 1:
The patent creates a universal audio processing system that can be implemented in any device with a microprocessor (cell phones, vehicles, computers, portable media players). The same DSP algorithms and signal processing techniques are applied across different devices and audio sources, providing consistent studio-quality output regardless of the underlying hardware platform.
3Ease of operation
If fixed amplification and equalization settings are used in mobile devices, then device simplicity is maintained, but audio quality enhancement is limited
Solution Approach 1:
The patent implements dynamic audio processing where the system continuously analyzes the input audio signal and automatically adjusts filtering and equalization parameters in real-time. Unlike fixed settings, the DSP system adapts its processing based on the characteristics of each audio source and playing conditions, providing optimized audio quality without requiring user intervention or complex manual adjustments.
4Adaptability or versatility
If audio systems are designed for different vehicle configurations and speaker positions, then adaptability to various environments is improved, but design time and cost increase
Solution Approach 1:
The patent uses DSP techniques that can electronically adjust audio parameters (frequency response, equalization, filtering) to compensate for different vehicle acoustics and speaker positions. Rather than physically redesigning audio systems for each vehicle configuration, the system changes digital parameters to achieve optimal sound quality across convertibles, hard tops, different speaker locations, and various audio options.
Data Source
AI summary
The present invention provides for methods and systems for digitally processing an audio signal. In various embodiments, a method comprises receiving a profile comprising a plurality of filter equalizing coefficients, configuring a plurality of filters of a graphic equalizer with the plurality of filter equalizing coefficients from the profile, receiving a first signal for processing, adjusting the plurality of filters using a first gain, equalizing the first signal using the plurality of filters of the graphic equalizer, outputting the first signal, receiving a second signal for processing, adjusting the plurality of filters, previously configured with the filter equalizing coefficients from the profile, using a second gain, equalizing the second plurality of frequencies of the second signal with the plurality of filters of the graphic equalizer, and outputting the second signal.