Musical piece analysis device, musical piece analysis method, and program
The music analysis device improves BPM detection accuracy by synchronously aligning audio waveforms and updating BPM to maximize waveform peaks, addressing DJ mixing precision.
WO2026126481A1 Publication Date: 2026-06-18ALPHATHETA CORP
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- ALPHATHETA CORP
- Filing Date
- 2024-12-13
- Publication Date
- 2026-06-18
AI Technical Summary
⚠Technical Problem
Existing BPM detection techniques are inadequate for precise synchronization in DJ mixing, leading to auditory discomfort due to slight deviations in music pieces.
⚗Method used
A music analysis device and method that synchronously aligns audio waveforms with temporary beat positions, updates BPM, and identifies the BPM at which the waveform peak is maximized, with a threshold to confirm accuracy.
🎯Benefits of technology
Enhances BPM detection accuracy, minimizing processing and efficiently identifying the correct BPM for seamless music transitions.
✦ Generated by Eureka AI based on patent content.
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Abstract
The present invention provides a musical piece analysis device comprising a processor that executes: a process for synchronously adding audio waveforms, of a plurality of sections including temporary beat positions set in accordance with a temporary BPM in a BPM fixed section of a musical piece, by aligning the temporary beat positions; a process for updating the temporary BPM and re-executing the synchronous addition; and a process for specifying, as the BPM of the BPM fixed section, the temporary BPM at which the peak level of the waveform obtained by the synchronous addition is at a maximum.
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