EE 321 Project
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Transcript of EE 321 Project
EE 321 Project
INTAE KIM, Mouhamadou Diallo
Instruments Separation through filtering and Active
Noise Removal
Separating two instruments by filtering in MATLAB
Duet
Filtering Piano & Violin
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
Example - Original
Removing Voice from MP3
Example - Removing Voice
Removing Voice from MP3
Noise Reducing Human voice: 300~3400 Hz Focus on the major voice ‘Low Cut Filter’
Voice Recording
Collect Noise Emit phase-inverted noise Cancel each other out
Noise canceling
Applications
Noise canceling
Acoustic Noise Cancellation using LMS filter
Noise Cancelation
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
Question?