Audio DSP Pipeline for Studio-Quality Sound on Consumer Devices
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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 a cost-effective solution 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 filtering, 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 cost and device complexity increase
Solution Approach 1:
The patent replaces complex mechanical audio hardware systems with a digital signal processing system implemented in software or firmware on a microprocessor. The DSP architecture uses digital filtering, frequency manipulation, and dynamic range compression to achieve studio-quality sound reproduction without requiring expensive analog audio components, advanced speaker design, or complex hardware amplification circuits.
Solution Approach 2:
The patent transforms the audio signal by manipulating its parameters in the digital domain - applying high-pass filtering to remove ultra-low frequencies, using dynamic range compression to control amplitude variations, and employing frequency-dependent gain adjustments to enhance clarity and brightness. These parameter changes in the digital signal allow standard hardware to produce studio-quality output.
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 replaces expensive analog audio hardware with a software-based DSP implementation that runs on inexpensive microprocessors already present in consumer devices. This substitution eliminates the need for costly dedicated audio processing circuits, high-end amplifiers, and specialized hardware components, thereby dramatically reducing manufacturing costs while maintaining audio quality.
Solution Approach 2:
The patent creates a digital model of studio-quality audio processing that can be replicated across unlimited devices through software copying. Instead of manufacturing expensive physical audio hardware for each device, the same audio processing algorithms can be copied and deployed as software or firmware on any standard microprocessor platform, achieving studio-quality sound at minimal marginal cost.
3Manufacturing precision
If advanced speaker design and hardware are used, then audio quality is improved, but power consumption increases
Solution Approach 1:
The patent replaces power-hungry analog audio processing hardware with a software-based DSP system that operates efficiently on standard microprocessors. The digital signal processing operations - filtering, compression, and frequency manipulation - consume significantly less power than equivalent analog circuits, high-voltage amplifiers, and advanced speaker systems, enabling studio-quality audio in battery-powered portable devices.
4Manufacturing precision
If studio-quality sound reproduction is achieved outside the studio, then audio quality is improved, but consistency across different devices decreases
Solution Approach 1:
The patent creates a universal audio processing solution that operates consistently across diverse devices by implementing the DSP algorithms in software or firmware that can run on any standard microprocessor platform. The same audio processing pipeline - high-pass filtering, dynamic range compression, and frequency-dependent gain - can be deployed on smartphones, tablets, computers, and portable media players, ensuring consistent studio-quality sound reproduction across different hardware configurations without requiring device-specific tuning or calibration.
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.