Music Piece Order Determination via Beat Correlation
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Solution Overview
Problem
Existing music piece mix reproduction technologies fail to determine a suitable order for music pieces that ensures compatibility and natural connection between successive pieces, leading to unnatural sound transitions.
Innovation Solution
A music piece order determination device and method that corrects beat position information and tempo values to unify BPM across music pieces, calculates correlation values based on this unified data, and determines a reproduction order that maximizes the product or sum of correlation values between pieces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If mix reproduction is performed using existing technology, then music pieces can be continuously reproduced without interruption, but the connection between successive music pieces sounds unnatural when they are not compatible with mix reproduction
Solution Approach 1:
The system performs preliminary analysis of beat position information and tempo values for all music pieces before reproduction. It pre-calculates correlation values between different music piece combinations and determines the optimal reproduction order in advance, ensuring natural connections are achieved without interruption during actual playback
Solution Approach 2:
The system analyzes and compares temporal parameters (beat position information and tempo values) of different music pieces. By calculating correlation values based on these parameters and adjusting the reproduction order to maximize the sum of correlation values, the system ensures smooth and natural transitions between successive music pieces
2Adaptability or versatility
If music pieces are reproduced in arbitrary order, then reproduction flexibility is high, but compatibility and natural connection between pieces cannot be ensured
Solution Approach 1:
The system quantitatively evaluates compatibility between music pieces by analyzing temporal parameters (beat position information and tempo values) and calculating correlation values. This allows the system to determine the optimal reproduction order that maximizes the sum of correlation values, ensuring both flexibility in selection and reliability in connection quality
Solution Approach 2:
The system uses calculated correlation values as feedback to optimize the reproduction order. By evaluating the compatibility between successive music pieces based on their temporal parameters and adjusting the order to maximize the sum of correlation values, the system ensures natural connections while maintaining reproduction flexibility
Data Source
AI summary
A beat information corrector acquires beat position information including information regarding a point of time when a beat is reproduced, acquires a tempo value indicating a number of beats per unit time in a music piece, and corrects the beat position information of the music piece so that the tempo value of the music piece be a same value as the reference value. A correlation value calculator calculates a correlation value, which indicates a degree of correlation of beat position information between respective music pieces among a plurality of the music pieces, based on the corrected beat position information. A music piece order determiner determines a music piece order as a reproduction order of music pieces, which are to be reproduced successively, so that a product or total sum of the correlation values between the music pieces be at a maximum or an approximate solution thereof.