Music Score Matching via Electrical Performance Data
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Solution Overview
Problem
Existing music score matching systems rely on voice recognition technology, which is influenced by environmental factors and has high technical costs and error rates, making them inefficient and user-unfriendly.
Innovation Solution
A method and system that acquire non-audio performance information such as playing sequences, durations, and forces to match played music scores with standard scores using a two-dimensional coordinate system and soft indexing transformation, allowing for accurate matching regardless of playing speed or rhythm differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If voice recognition technology is used for music score matching, then the system can recognize scale-steps in music, but the system is greatly influenced by environmental factors and has high error rates
Solution Approach 1:
The patent replaces the acoustic field-based voice recognition system with an electrical signal-based system. The musical instrument directly outputs electrical performance data (note sequences, durations, intensities) which is then processed by a computer to match with standard music scores. This substitution eliminates the intermediate acoustic transmission stage that is vulnerable to environmental factors like background noise, reverberation, and microphone positioning, thereby significantly improving matching accuracy and system reliability.
2Measurement precision
If voice recognition technology is used for music score matching, then the system can identify played music, but the technical cost and complexity increase
Solution Approach 1:
The patent extracts and utilizes only the essential performance data elements directly output by the musical instrument's electrical system - specifically note sequences, durations, and intensities. By taking out only these critical parameters needed for music score matching and discarding the complex acoustic signal processing chain, the system achieves accurate music identification while significantly reducing technical complexity and cost.
3Adaptability or versatility
If traditional music score matching is used, then the system can compare played music with standard scores, but it cannot accommodate variations in playing speed and rhythm
Solution Approach 1:
The patent introduces dynamic time scaling algorithms that allow the music score matching system to adapt to variations in playing speed and rhythm. The system dynamically adjusts the temporal parameters of the played music data, stretching or compressing time intervals to align with the standard music score while preserving the relative rhythmic relationships. This dynamic adjustment enables accurate matching even when players perform at different tempos or with rhythmic variations, thereby improving both adaptability and matching precision.
Data Source
AI summary
The present disclosure relates to a system and method for matching performance with score. The method may include acquiring performance information in a preset time period, wherein the performance information is related to a musical device. The method may also include analyzing the performance information and obtaining a played music score in the preset time period, wherein the played music score contains the performance information. The method may further include comparing the played music score with one or more standard music scores. The method may still further include identifying a standard music score from the one or more standard music score based on the comparison of the played music score with the one or more standard music scores, wherein a matching degree between the played music score and the identified standard music score reaches a preset value.