Audio Gain Meter Guidance by Instrument Category
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Solution Overview
Problem
Beginners find it difficult to perform gain adjustment in signal processing devices, such as audio mixers, as they often struggle to determine the appropriate level for different musical instrument types, leading to unclear gain settings.
Innovation Solution
A signal processing device and computer program that categorize audio signals by instrument type, providing recommended gain ranges and visual aids like meter displays and scaling, allowing users to easily set and adjust gains within appropriate dynamic ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If gain control is performed manually by users in the head amplifier, then the level of the signal can be adjusted, but beginners find it difficult to determine the appropriate gain level for different musical instrument types
Solution Approach 1:
The system provides visual feedback through a meter display that shows the current signal level and indicates whether it is appropriate for the selected instrument category. The display shows different regions (e.g., too low, appropriate, too high) to guide users in adjusting the gain to the correct level, transforming the manual adjustment process into a guided feedback-driven operation.
Solution Approach 2:
The system introduces an intermediary processing stage between the input signal and the signal processing chain. This intermediary includes a selector for choosing instrument categories and a meter display that mediates between the user's gain adjustment and the actual signal level, providing contextual guidance based on the selected category.
2Ease of operation
If the system provides detailed information about dynamic range for each category, then beginners can set appropriate gain, but the device complexity increases
Solution Approach 1:
The system segments the gain control process into discrete steps: selecting an instrument category from a predefined list, and then adjusting gain based on the corresponding meter display guidance. This segmentation simplifies the complex task of gain adjustment by breaking it down into manageable, category-specific steps rather than requiring users to understand overall dynamic range concepts.
Solution Approach 2:
Instead of providing a single general gain control interface, the system provides localized gain control guidance specific to each instrument category. The meter display and recommended level ranges are tailored to the characteristics of the selected category (e.g., acoustic guitar vs. electric bass), providing context-appropriate guidance without overwhelming the user with all possible category information simultaneously.
Data Source
Figure 1
Figure 2A~2B
Figure 3~4
AI summary
In each category representing a signal type, a recommended minimum value (414) and a recommended maximum value (415) of a level of a signal are stored. The recommended minimum value (414) and the recommended maximum value (415) are determined based on a dynamic range of the signal of the type, for example. A function configured to set a gain used for adjusting a level of an input signal according to a user operation, and a function configured to set a category are provided. Further, a meter portion (212) configured to display the level (613) of the signal level-adjusted by the set gain is provided, and the recommended minimum value (414) and the recommended maximum value (415) of the set category are exhibited (651, 652) in a manner to correspond to the display by the meter portion (212).