Ringtone DSP Equalization for Studio-Quality Vehicle Audio
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Solution Overview
Problem
Current technologies fail to consistently reproduce studio-quality sound outside of recording studios at a low cost, particularly in vehicles, where expensive upgrades are often required to achieve acceptable audio quality, and existing audio systems in vehicles lack the ability to optimize sound reproduction across varying environments and speaker configurations.
Innovation Solution
A method of digitally processing audio signals using a series of filters and compressors, including low and high shelf filters, graphic equalizers, and gain adjustments, which can be implemented in a computer chip to enhance audio quality across various environments and speaker systems, allowing for the reproduction of studio-quality sound using inexpensive speakers and existing vehicle speaker systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If expensive speaker upgrades and advanced hardware are used to reproduce studio-quality sound outside the studio, then sound quality is improved, but cost and device complexity increase significantly
Solution Approach 1:
The patent replaces physical acoustic modifications (mechanical system) with digital signal processing (electronic system). Instead of upgrading speakers hardware or modifying acoustic environments, the invention uses DSP algorithms including equalization, compression, and frequency enhancement to achieve studio-quality sound reproduction through existing speakers, thereby reducing device complexity and cost while maintaining sound quality
Solution Approach 2:
The patent changes the parameters of the audio signal itself rather than changing the physical system. By applying digital filtering, equalization, and compression to modify frequency response, dynamic range, and spectral balance, the system achieves improved sound quality without requiring expensive hardware upgrades, effectively decoupling sound quality from device complexity
2Manufacturing precision
If expensive speaker upgrades are implemented in vehicles to achieve studio-quality sound, then sound quality is improved, but cost increases significantly
Solution Approach 1:
The patent substitutes mechanical/acoustic solutions (speaker upgrades, acoustic treatment) with digital signal processing. The DSP system processes audio signals through equalization, compression, and frequency enhancement algorithms, enabling existing vehicle speakers to produce studio-quality sound without any physical modifications, thereby eliminating the need for expensive hardware upgrades and reducing manufacturing cost
Solution Approach 2:
The patent creates a digital model or representation of ideal studio sound characteristics through signal processing. By copying and applying the spectral and temporal characteristics of studio-quality audio through DSP algorithms, the system reproduces studio sound through inexpensive existing speakers, avoiding the need for expensive physical upgrades
3Device complexity
If fixed amplification and equalization settings are used in mobile devices, then device complexity is reduced, but audio quality cannot be optimized for different environments
Solution Approach 1:
The patent introduces dynamic, adaptive signal processing that automatically adjusts audio parameters based on environmental conditions and signal characteristics. The DSP system continuously analyzes the audio input and modifies equalization, compression, and frequency enhancement parameters in real-time, enabling the device to adapt to different acoustic environments (vehicles, indoor, outdoor) without requiring manual user adjustment or complex configuration interfaces
Solution Approach 2:
The patent implements feedback mechanisms where the DSP system monitors the audio signal and environmental conditions, then automatically adjusts processing parameters accordingly. By using the audio signal itself and environmental acoustic characteristics as feedback, the system optimizes sound quality for different situations without increasing user-facing complexity, as the adaptation occurs automatically through the processing chain
Data Source
AI summary
The present invention(s) provides for methods and systems for digitally processing a ringtone. In various embodiments, a method comprises generating a profile comprising a plurality of filter equalizing coefficients, configuring a plurality of filters of a graphic equalizer using the plurality of filter equalizing coefficients from the profile, receiving a ringtone for processing, adjusting the plurality of filters using a first gain, equalizing the ringtone using the plurality of filters of the graphic equalizer, and outputting the equalized ringtone.