Intelligent Rhythmic Track Matching via BPM and Downbeat Alignment

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Solution Overview

Problem

Existing sound effect processing solutions for audio systems lack the ability to seamlessly integrate rhythmic tracks with the original music, often resulting in abrupt transitions and repetitive effects, failing to enhance the listening experience for users.

Innovation Solution

A method and system that pre-stores music elements to generate a rhythmic track library, detects BPM, assigns time parameters to rhythmic tracks to match the original music's rhythm, and aligns downbeats for harmonious integration, allowing for intelligent addition of rhythmic tracks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If sound effect processing is performed randomly on original music, then automation is improved, but the integration with scene atmosphere deteriorates

Engineering Contradiction:

Improveautomatic sound effect processingVSAvoidintegration with scene atmosphere

Core Design Contradiction:

Extent of automationVSReliability

Solution Approach 1:

The system performs downbeat detection on the original music to obtain beat information, then uses this feedback to automatically select and adjust rhythmic tracks that match the detected rhythm. This closed-loop feedback mechanism ensures that automated processing maintains reliable integration with the music's inherent rhythm and scene atmosphere.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system enables the audio system to automatically analyze its own played music content, detect BPM and downbeats, and autonomously select matching rhythmic tracks without external intervention. This self-service capability resolves the contradiction by making automation intelligent rather than random.

Inventive Principle:

Principle #25Self-service

2Device complexity

If only simple sound effect processing is performed on fragments of original music, then device complexity is reduced, but the musical effect deteriorates

Engineering Contradiction:

Improvesound effect processing complexityVSAvoidmusical effect quality

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The system merges the original music with selected rhythmic tracks by aligning their downbeats and BPM. This combination creates a unified musical effect that enhances the original music rather than merely processing fragments, resolving the contradiction between simple processing and high-quality effect.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The system creates a composite audio output by layering the original music with additional rhythmic tracks. This composite approach enriches the musical effect while maintaining manageable system complexity through automated selection and alignment processes.

Inventive Principle:

Principle #40Composite materials

3Ease of operation

If fixed common sound effect processing is applied to original music, then ease of operation is improved, but the music style distinctness deteriorates

Engineering Contradiction:

Improveoperation simplicityVSAvoidmusic style distinctness

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The system applies different rhythmic track selections to different segments of music based on their specific BPM and downbeat characteristics. This local customization ensures that each music segment receives style-appropriate processing, maintaining music style distinctness while keeping the overall operation simple through automated analysis.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The system changes key parameters including BPM detection, downbeat identification, and rhythmic track selection based on the specific characteristics of each music segment. These parameter changes enable the system to adapt to different music styles automatically, resolving the contradiction between ease of operation and style distinctness.

Inventive Principle:

Principle #35Parameter changes

4Productivity

If rhythmic tracks are added without rhythm matching, then productivity is improved, but the listening experience deteriorates

Engineering Contradiction:

Improvetrack addition efficiencyVSAvoidlistening experience quality

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The system performs preliminary BPM detection and downbeat analysis on the original music before selecting and adding rhythmic tracks. This preliminary action ensures that tracks are pre-matched to the music's rhythm, maintaining high listening experience quality while preserving productivity through automated selection processes.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS12456491B2Method and system for realizing intelligent matching and adding of rhythmic tracks

Publication Date: 2025.10.28 HARMAN INT IND INC

AI summary

The present disclosure provides a method and a system for realizing intelligent matching and adding of rhythmic tracks. In one example, a method is provided, including: pre-storing a plurality of music elements; generating a rhythmic track library according to the plurality of music elements, the rhythmic track library including a plurality of rhythmic tracks based on the plurality of music elements; detecting a BPM of original music, and calculating a time interval between every two beats based on the detected BPM of the original music; selecting one or more rhythmic tracks from the rhythmic track library, and assigning a time parameter to the one or more rhythmic tracks based on the time interval so as to match the rhythm of the original music; and adding the one or more rhythmic tracks assigned with the time parameter into the original music so as to combine with the original music and play.