Beat Timing Generation Using Intensity Data Analysis
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Solution Overview
Problem
Existing technologies require complex calculations to automatically generate hand clapping in sync with music, which is not efficiently addressed by existing tempo information and rhythm pattern determination methods.
Innovation Solution
A beat timing generation device and method that calculates the period and phase of music beats using intensity data, allowing for automatic detection and reproduction of beat timings with minimal computational load, employing Fourier conversion and counter-based timing detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If existing tempo information generation technologies are used to automatically generate hand clapping, then automatic output of hand clapping is achieved, but a large amount of complicated calculation is required
Solution Approach 1:
The patent extracts only the essential beat timing information from the music signal by detecting peak points in the intensity data, rather than performing comprehensive tempo analysis. This extraction approach obtains the necessary beat timing data with minimal calculation, resolving the contradiction between automation and computational complexity.
2Measurement precision
If comprehensive rhythm pattern determination is performed to achieve accurate beat detection, then detection accuracy is improved, but calculation time and complexity increase
Solution Approach 1:
The patent segments the music signal into frames and processes each frame independently to detect peak points representing beat timings. This segmentation allows accurate beat detection within each frame without requiring complex global analysis, thereby maintaining detection accuracy while reducing overall calculation time.
Solution Approach 2:
The patent performs partial action by detecting only the most prominent peak points that correspond to beat timings, rather than analyzing all temporal characteristics of the music signal. This partial analysis achieves sufficient beat detection accuracy with significantly reduced calculation time.
Data Source
AI summary
A beat timing generation device including a generation unit for generating, from data of music that has been input, information of timings on which a beat of the music depends and a plurality of pieces of intensity data indicating a power at the timings; a calculation unit for calculating a period and a phase of the beat of the music using the plurality of pieces of intensity data; and a detection unit for detecting a beat generation timing on a basis of the period and the phase of the beat.