Audio Mixer Dual Control Layout for Independent Multi-User Operation

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Solution Overview

Problem

Existing audio mixers are not designed for easy use by multiple users simultaneously, leading to potential parameter changes and operational conflicts when multiple individuals operate the same device.

Innovation Solution

The audio mixer is configured with dual independent control sections and signal processing systems, allowing separate and independent control of parameters by multiple users through distinct physical controllers and display modes, ensuring that operations by one user do not affect the settings of others.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a single audio mixer is used by multiple users, then device utilization is improved, but operational conflicts and parameter changes occur

Engineering Contradiction:
Improvedevice utilizationVSAvoidoperational conflicts
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The audio mixer is divided into multiple independent control sections (first control section and second control section), each with separate operation receivers and parameter controllers. This segmentation allows different users to operate different sections simultaneously without interfering with each other's settings, resolving the operational conflicts while maintaining high device utilization.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If multiple users operate the same mixer simultaneously, then collaboration is improved, but parameter stability deteriorates

Engineering Contradiction:
Improvecollaboration capabilityVSAvoidparameter stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

By segmenting the parameter control system into multiple independent parameter controllers (first parameter controller and second parameter controller), each user's operations are confined to their designated section. This prevents accidental parameter changes in other sections while allowing collaborative usage of the same mixer device.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If independent control sections are added for multiple users, then ease of operation for multiple users is improved, but device complexity increases

Engineering Contradiction:
Improveindependent controlVSAvoidcontrol structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent merges multiple control sections into a single integrated audio mixer device. The first and second control sections share common infrastructure including the mixing bus, signal processor, and display device, while maintaining independent operation receivers and parameter controllers. This combining approach provides independent control for multiple users without proportionally increasing overall device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP4250602B1Audio mixer, and method of controlling audio mixer
Publication Date: 2026.02.18 YAMAHA CORP
  • EP4250602B1 patent drawingFigure 1
  • EP4250602B1 patent drawingFigure 2
  • EP4250602B1 patent drawingFigure 3

AI summary

An audio mixer includes a plurality of physical controllers that control a value of a parameter. A processor, in a first mode, divides a plurality of input channels into first/second input channel and a plurality of mixing buses into first/second mixing bus of a first/second signal processing system, respectively, and controls a signal processor to perform a first/second operation to process an audio signal from the first/second input channel to the first/second mixing bus according to the value of the first/second parameter in the first/second signal processing system, respectively. In a second mode, it controls, by using the plurality of input channels and mixing buses as part of the same signal processing system, the signal processor to perform an operation to process an audio signal according to the value of the first/second parameter in the same signal processing system.