Reproduction Control Method for Seamless Sound Pitch Adjustment
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Solution Overview
Problem
Conventional sound reproduction systems require users to issue separate instructions for sound generation and pitch changes, making the process burdensome.
Innovation Solution
A reproduction control method executed by a computer that detects an object's state relative to an operation surface, initiating sound reproduction and controlling sound features like pitch based on the object's movement speed and position, allowing for seamless integration of sound generation and pitch changes with a single operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate instructions are required for sound generation and pitch changes, then the system can precisely control each parameter independently, but the user operation becomes highly burdensome and complex
Solution Approach 1:
The patent combines sound generation and pitch change control into a single operation by detecting the object's approach to the operation surface. As the object moves closer to the surface, the system automatically generates sound and adjusts pitch based on the approach speed and distance, eliminating the need for separate instructions for each function.
Solution Approach 2:
The system performs preliminary detection of the object's approach state before sound generation occurs. By detecting the distance and speed of approach in advance, the system prepares and automatically executes both sound generation and pitch adjustment as the object completes its approach, streamlining the user interaction.
2Productivity
If pitch bend instruction is made separately from sound generation instruction, then precise control of pitch is achieved, but the number of required operations increases
Solution Approach 1:
The patent merges sound generation and pitch adjustment into a single integrated operation. The pitch change is automatically determined based on the object's approach speed and distance, allowing both functions to be executed simultaneously without requiring separate user instructions, thereby reducing operation time and improving productivity.
3Ease of operation
If the object must be in contact with the operation surface to generate sound, then accurate sound triggering is achieved, but the user experience becomes less intuitive
Solution Approach 1:
The system performs preliminary detection of the object's approach state before actual contact occurs. By measuring distance and speed during the approach phase, the system can trigger sound generation and pitch adjustment in anticipation of contact, making the interaction more intuitive while maintaining precise control through the detected motion parameters.
Data Source
AI summary
A reproduction control method, which is executed by a computer, includes detecting a first state in which an object is separated from an operation surface by a prescribed distance and a second state in which the object is in contact with the operation surface, initiating sound reproduction at a first time point at which the first state is detected, continuing the sound reproduction from the first time point to a third time point which is subsequent to a second time point at which the second state is detected, and controlling a change in a feature amount of a sound during a first time period from the first time point to the second time point.