Acoustic Mixing Control With Low-Frequency Volume Switching

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Solution Overview

Problem

Unaccustomed users find it difficult to operate acoustic devices to mix music pieces without causing an uncomfortable impression.

Innovation Solution

The acoustic control device switches the magnitude relationship between the volumes of music pieces in different frequency bands by adjusting the volume levels of low-frequency bands, using a normal mode and an assist mode for mixing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional volume mixing is used for music pieces, then the mixing function is achieved, but unaccustomed users experience difficulty and uncomfortable impression

Engineering Contradiction:
Improveease of mixing operationVSAvoidcomplexity of mixing operation
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent applies parameter changes by switching from traditional overall volume mixing to frequency-band-specific volume mixing. The mixing device adjusts volume levels separately for low-frequency bands, medium-frequency bands, and high-frequency bands, allowing different music pieces to be balanced in terms of their spectral content rather than overall volume. This resolves the contradiction by making mixing more intuitive (improving ease of operation) while the systematic approach to frequency band management prevents excessive complexity.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent segments the audio spectrum into distinct frequency bands (low-frequency band, medium-frequency band, high-frequency band) and applies independent volume control to each band. This segmentation allows users to adjust specific frequency ranges of different music pieces separately, making the mixing process more manageable and intuitive. By dividing the complex task of overall volume balancing into simpler frequency-specific adjustments, the patent improves ease of operation without creating excessive complexity.

Inventive Principle:
Principle #1Segmentation

2Manufacturing precision

If volume levels of different frequency bands are adjusted independently, then mixing quality improves, but control complexity increases

Engineering Contradiction:
Improveprecision of volume controlVSAvoidcomplexity of control system
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent implements precise volume control by introducing frequency band as an additional control parameter. Instead of adjusting a single overall volume parameter, the system allows independent adjustment of volume levels for low-frequency bands, medium-frequency bands, and high-frequency bands. This multi-parameter control approach achieves superior mixing precision by enabling fine-grained adjustment of spectral balance, while the structured organization of controls prevents the system from becoming overly complex.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent applies local quality by allowing different volume adjustment characteristics for different frequency bands. Each frequency band can be controlled with its own volume level, enabling precise local adjustments to specific spectral regions of the music pieces. This local control approach achieves high precision in volume matching while maintaining manageable complexity through the systematic organization of band-specific controls.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS20250330749A1Acoustic control device and acoustic control program
Publication Date: 2025.10.23 ALPHATHETA CORP
  • US20250330749A1 patent drawing
  • US20250330749A1 patent drawing
  • US20250330749A1 patent drawing

AI summary

An acoustic control device for mixing a first music piece and a second music piece is configured to switch a magnitude relationship between a volume of the first music piece in a low-frequency band and a volume of the second music piece in a low-frequency band by lowering the volume level of the first music piece in the low-frequency band and raising the volume level of the second music piece in the low-frequency band in accordance with an operation of an operator for controlling the volume of the first music piece and the volume of the second music piece.