Audio Signal Processing with Multiband Compression and High-Pass Filtering
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Solution Overview
Problem
Existing methods fail to consistently produce studio-quality sound outside of recording studios, requiring expensive hardware and achieving mixed results, while there is a need for cost-effective solutions to reproduce high-quality audio across various consumer devices.
Innovation Solution
A system and method for digitally processing audio signals using a computer chip or software that filters and enhances audio signals in real-time, tailored to specific devices and environments, involving high pass filters, dynamic range compression, and frequency adjustments to achieve studio-quality sound.
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 device cost and complexity increase
Solution Approach 1:
The patent replaces complex mechanical audio processing systems with digital signal processing algorithms implemented in software. The audio enhancement is achieved through computational methods including frequency domain transformation, spectral analysis, and digital filtering rather than through expensive hardware components and advanced speaker design.
Solution Approach 2:
The patent transforms audio signals from the time domain to the frequency domain using Fourier transforms, enabling manipulation of spectral parameters. By changing the representation parameters of the audio signal and applying frequency-dependent processing, the system achieves studio-quality sound reproduction through software-based parameter optimization rather than hardware complexity.
2Manufacturing precision
If expensive hardware is used to achieve studio-quality sound, then audio quality is improved, but cost increases
Solution Approach 1:
The patent substitutes expensive hardware-based audio processing with software-based digital signal processing algorithms. This replacement eliminates the need for costly specialized hardware components while maintaining or improving audio quality through computational methods.
Solution Approach 2:
The patent creates a software-based copy of the studio recording process that can be replicated across multiple devices without additional hardware costs. The audio enhancement algorithms serve as a digital copy of professional studio processing that can be distributed and executed on standard consumer devices.
3Manufacturing precision
If advanced speaker design and hardware are used, then audio quality is improved, but power consumption increases
Solution Approach 1:
The patent performs preliminary audio signal processing and enhancement before the audio is sent to the speaker. By pre-processing the audio signal with digital filtering, equalization, and spectral enhancement algorithms, the system optimizes the signal for standard speakers, eliminating the need for expensive high-power amplification and advanced speaker hardware.
Data Source
AI summary
A system and method for digital processing including a gain element to process an input audio signal, a high pass filter to then filter the signal and create a high pass signal, a first filter module to filter the high pass signal and create a first filtered signal and a splitter to split the high pass signal into two high pass signals. The first filter module filters one high pass signals before a first compressor modulates the signal or a high pass signal to create a modulated signal. A second filter module filters the modulated signal to create a second filtered signal that is processed by a first processing module including a band splitter that splits the signal into low and high band signals that are then modulated by compressors. A second processing module processes the modulated low and high band signals to create an output signal.