Electric Acoustic Apparatus Dynamic Sound Control Pattern Selection
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Solution Overview
Problem
Conventional electronic musical instruments are limited in their ability to represent playing behavior, as they only allow switching between reproduction and stop states based on a simple switch, lacking nuanced control over sound behavior.
Innovation Solution
An electric acoustic apparatus that includes a supply unit for sound-generation information, a storage for sound control pattern data, and a reproducer that generates sound signals based on this information, allowing for dynamic modification and selection of sound control patterns according to user input, such as key velocity and manipulation mode, to reflect playing behavior in sound control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple switch is used to control reproduction and stop of sound control pattern data, then the device complexity is reduced, but the playing representation is poor
Solution Approach 1:
The patent applies dynamics by making the control mechanism responsive to varying playing conditions. The reproducer dynamically selects and modifies sound control pattern data based on real-time sound-generation information such as velocity, pitch, and manipulation mode, transforming a static switch-based system into a dynamic, context-aware control system that adapts to player expression
Solution Approach 2:
The patent implements parameter changes by using multiple sound-generation parameters (velocity, pitch, arrangement position, manipulation mode) to control the selection and modification of sound control pattern data. Instead of a simple binary switch, the system continuously adjusts sound behavior based on varying parameter values from player input, enabling nuanced control over sound characteristics
2Ease of operation
If sound control pattern data is modified according to sound-generation information, then the playing representation is improved, but the device complexity increases
Solution Approach 1:
The sound signal generator is designed with multi-functionality to handle diverse sound control tasks. It can select from multiple sound control pattern data sets, modify parameters based on different sound-generation information types (velocity, pitch, arrangement position), and adapt to various manipulation modes, consolidating multiple control functions into a single versatile component rather than requiring separate mechanisms for each function
Solution Approach 2:
The system implements feedback by continuously monitoring sound-generation information from player input and using this information to dynamically select and modify sound control pattern data. The reproducer receives real-time feedback about velocity, pitch, and manipulation mode, then adjusts the sound control accordingly, creating a closed-loop system that responds to player expression
Data Source
AI summary
An electric acoustic apparatus includes a supply unit that supplies sound-generation information including timing information representing a start of a sound-generation, a storage storing sound control pattern data representing a pattern of over-time change of a parameter defining a behavior of a sound, a reproducer that reproduces the sound control pattern data, and a sound signal generator that generates a sound signal representing a sound according to the sound-generation information and changes the behavior of the sound based on the reproduced sound control pattern data. The reproducer controls a reproduction behavior of the sound control pattern data according to the sound-generation information.