ee 321 project
DESCRIPTION
Instruments Separation through filtering and Active Noise Removal. EE 321 Project. INTAE KIM, Mouhamadou Diallo. Filtering Piano & Violin. Separating two instruments by filtering in MATLAB Duet. Removing Voice from MP3. Mp3 file is usually stereo. Stereo has left and right parts - PowerPoint PPT PresentationTRANSCRIPT
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EE 321 Project
INTAE KIM, Mouhamadou Diallo
Instruments Separation through filtering and Active
Noise Removal
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Separating two instruments by filtering in MATLAB
Duet
Filtering Piano & Violin
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Mp3 file is usually stereo. Stereo has left and right parts
Voice – Same phase on left and right. Instrument – Different phase on each side Using MATLAB removing voice
- Create matrix of Mp3 file - Separate matrix to left and right - Subtract left to right
Removing Voice from MP3
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Example - Original
Removing Voice from MP3
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Example - Removing Voice
Removing Voice from MP3
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Noise Reducing Human voice: 300~3400 Hz Focus on the major voice ‘Low Cut Filter’
Voice Recording
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Collect Noise Emit phase-inverted noise Cancel each other out
Noise canceling
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Applications
Noise canceling
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Acoustic Noise Cancellation using LMS filter
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Noise Cancelation
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http://en.wikipedia.org/wiki/Voice_frequency http://
www.themotorreport.com.au/5928/toyota-to-fit-active-noise-cancelling-to-crown-hybrid
http://pro.sony.com/bbsc/ssr/cat-audio/cat-wiredmics/product-C38B/
http://blog.naver.com/rivelliun?Redirect=Log&logNo=140069759186
Reference
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Question?