Automatic Generation of Karaoke-Game Stage Presentation at NSC

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Information about Automatic Generation of Karaoke-Game Stage Presentation at NSC

Published on January 10, 2009

Author: m3rlinez

Source: slideshare.net

Description

Automatic Generation of Karaoke-Game Stage Presentation at NSC

Automatic Generation of Karaoke-Game Stages from Audio Files Natthawut Kulnirundorn Professor Boonserm Kijsirikul Department of Computer Engineering Chulalongkorn University 1/9/2009

Project Background Karaoke Game User try to sing at correct pitch for each note Can analyze how well you sing People enjoy playing karaoke game Existing commercial products: SingStar, Rockband 1/9/2009

Karaoke Game

User try to sing at correct pitch for each note

Can analyze how well you sing

People enjoy playing karaoke game

Existing commercial products: SingStar, Rockband

How to play karaoke game? 54100 1/9/2009

Problems with current karaoke games Limited number of stages Usually pre-packed with game Cannot add new song Available on limited platforms Singstar on PS3 Rockband on XBOX360 Need to buy new game to play more songs! 1/9/2009

Limited number of stages

Usually pre-packed with game

Cannot add new song

Available on limited platforms

Singstar on PS3

Rockband on XBOX360

Proposed Solution 1/9/2009

Project Objectives 1/9/2009

Vocal Pitch Detection in Polyphonic Audio Still an open research problem Cannot simply apply the same algorithms as pitch detection in single source Autocorrelation Harmonic Product Spectrum (HPS) Current approaches based on many different techniques Machine Learning Independent Component Analysis (ICA) Detected frequency from HPS Freq. from Human voice highlighted in red 1/9/2009 time freq

Still an open research problem

Cannot simply apply the same algorithms as pitch detection in single source

Autocorrelation

Harmonic Product Spectrum (HPS)

Current approaches based on many different techniques

Machine Learning

Independent Component Analysis (ICA)

Demonstration – Stage Generation 1/9/2009

Demonstration – Karaoke Game 1/9/2009

Method Proposed 1/9/2009

Spectrum Subtraction 1/9/2009 *Human singing frequency normal voice-removed result time freq

Conclusion Enable users to sing a song in native languages. The method proposed is easy to implement and can be applied to classes of application The prototypes can be developed further to be an entertainment application 1/9/2009

Enable users to sing a song in native languages.

The method proposed is easy to implement and can be applied to classes of application

The prototypes can be developed further to be an entertainment application

Questions ? 1/9/2009

References 1/9/2009

Appendix 1/9/2009

Autocorrelation 1/9/2009

Harmonic Product Spectrum 1/9/2009

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