Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Automatic duplicating method and device for single track polyphonic music signals

A monophonic and music technology, applied in speech analysis, speech recognition, instruments, etc., can solve the problems of low or incapable multi-tone music signal transcription accuracy and achieve high accuracy

Inactive Publication Date: 2014-06-11
COMMUNICATION UNIVERSITY OF CHINA
View PDF5 Cites 36 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method and device for automatically transcribing monophonic polyphonic music signals to solve the problem that existing automatic transcribing devices cannot transcribe polyphonic music signals or the accuracy of music scores is not high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Automatic duplicating method and device for single track polyphonic music signals
  • Automatic duplicating method and device for single track polyphonic music signals
  • Automatic duplicating method and device for single track polyphonic music signals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0060] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0061] The invention provides a method for automatically transcribing monophonic polyphonic music signals, the method comprising:

[0062] Step 1. Receive a single-channel polyphonic music signal;

[0063] Step 2, separating monophonic polyphonic music signals to obtain multi-channel monophonic music signals;

[0064] The second step specifically includes: processing the polyphonic music signal into frames to obtain a plurality of audio frames, performing mute detection on each audio frame to determine whether it is a mute frame, performing multi-fundamental frequency detect...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an automatic duplicating method and device for single track polyphonic music signals. The automatic duplicating method comprises the steps of receiving the single track polyphonic music signals, separating the single track polyphonic music signals to obtain multipath single-tone music signals, carrying out tone extraction on each single-tone music signal to determine musical instrument playing information, carrying out melody extraction, rhythm extraction and beat extraction on each single-tone music signal to obtain audio information, and obtaining polyphonic music score according to the musical instrument playing information and the audio information. According to the automatic duplicating method and device for the single track polyphonic music signals, the single track polyphonic music signals are separated into the multipath single-tone music signals, the melody extraction, the rhythm extraction and the beat extraction are carried out on each separated single-tone music signal to obtain the musical instrument playing information and the audio information, and therefore the polyphonic music score with a high accuracy rate is obtained according to the musical instrument playing information and the audio information.

Description

technical field [0001] The invention relates to the technical field of digital signal processing, in particular to a method and device for automatically transcribing monophonic polyphonic music signals. Background technique [0002] With the advancement of digital signal processing technology, the transmission and storage methods of music signals have also become diversified. The score of a piece of music signal contains almost all the information in the music, including melody, rhythm, beat and so on. With some audio software, it is even possible to create or modify musical notation to generate new musical signals without actual instrument performance. If the computer can automatically obtain the score from the time-domain music signal, it will be of great significance to the further development of music. [0003] With the development of music signal processing technology, various music signal automatic transcription devices have been produced. However, the music signal ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G10L15/02G10L15/26
Inventor 王晖王雨田朱兵王颖宫妍竹
Owner COMMUNICATION UNIVERSITY OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com