Multimedia Audio Rhythm Analysis for Accurate Music Identification
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Solution Overview
Problem
Users face challenges in accurately identifying and obtaining information about background music in multimedia content during playback, as existing methods lack reliability in matching search keywords with the desired music.
Innovation Solution
A method and device that retrieve audio from multimedia content, filter out environmental noise, analyze the rhythm, and search for music information using a database, overlaying this information onto the video signal for simultaneous display during playback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If users search for background music information using keywords during multimedia playback, then they can attempt to identify the music, but the accuracy of matching the desired music is unreliable
Solution Approach 1:
The patent replaces manual keyword-based music identification with automatic audio signal processing. The system extracts audio features (spectrogram, rhythm, melody) from the multimedia content and uses algorithmic matching against a database to automatically identify background music, eliminating the unreliable manual search process and significantly improving identification accuracy
Solution Approach 2:
The patent introduces an intermediary audio feature extraction and matching system between the user and the music database. Instead of directly searching using keywords, the system processes the audio signal through spectrogram analysis, rhythm detection, and melody extraction to create a intermediary representation that enables reliable matching with the database
2Measurement precision
If the system processes audio to extract music information during playback, then music identification accuracy improves, but the processing time and complexity increase
Solution Approach 1:
The patent segments the audio processing task into distinct modular components: spectrogram generation, rhythm extraction, melody analysis, and database matching. Each module handles a specific aspect of audio feature extraction, making the complex processing manageable and enabling parallel execution to reduce overall processing time while maintaining high identification accuracy
Solution Approach 2:
The patent performs preliminary audio feature extraction and preprocessing during idle periods or before playback. Audio segments are pre-processed to extract spectral and temporal features, which are then stored in an optimized format for rapid matching during playback, reducing real-time processing complexity while maintaining high identification accuracy
Data Source
AI summary
Music information is displayed during playback of multimedia content performed by a multimedia playback device. The multimedia content comprises audio and video. To obtain the music information, audio of the multimedia content is retrieved, environmental noise is filtered out of the audio to generate filtered audio, a rhythm of the filtered audio is obtained, and the music information is generated based on the rhythm of the filtered audio. The music information is displayed simultaneously during playback of the multimedia content.