2. ICASSP Multimedia file Title : Periodic Signal Extraction with Global Amplitude and Phase Modulation for Music Signal Decomposition Title : Periodic Signal Extraction with Global Amplitude and Phase Modulation for Music Signal Decomposition Authors : Mahdi Triki,Dirk T.M. Slock Eurecom Institute, Sophia Antipolis, France Eurecom Institute, Sophia Antipolis, France Paper number : 2866

3. Introduction This presentation is performed to demonstrate the results of the separation of a mixture of musical notes using the method proposed in the paper. This presentation is performed to demonstrate the results of the separation of a mixture of musical notes using the method proposed in the paper.

4. Input Signal Input signal: Input signal: –Duration : 1 second –Sampling rate : 22050 Hz –Number of bits per sample : 16 bits –SNR = 26 dB

5. Input Signal (2) Input signal: a synthesized mixture of three notes: Input signal: a synthesized mixture of three notes: –Note 1 : pitch=82Hz –Note 2 : pitch=92Hz –Note 3 : pitch=116Hz

6. Input signal (3)

7. Separation results Original signal Resynthesized Extracted signal Note 1 Note 2 Note 3

8. Note 1 extraction Amp. and freq modulation Analysis

9. Note 1 extraction (2) Spectrum Analysis Resulting approximation SNR= 8.4 dB Resulting approximation SNR= 8.4 dB

10. Note 1 extraction (3) Spectrum analysis for steady-state portion only Resulting approximation SNR= 17 dB Resulting approximation SNR= 17 dB

11. Note 2 extraction Amp. and freq modulation Analysis

12. Note 2 extraction (2) Spectrum Analysis Resulting approximation SNR= 5.8 dB Resulting approximation SNR= 5.8 dB

13. Note 2 extraction (3) Spectrum analysis for steady-state portion only Resulting approximation SNR= 10.3 dB Resulting approximation SNR= 10.3 dB

14. Note 3 extraction Amp. and freq modulation Analysis

15. Note 3 extraction (2) Spectrum Analysis Resulting approximation SNR= 6.18 dB Resulting approximation SNR= 6.18 dB

16. Note 3 extraction (3) Spectrum analysis for steady-state portion only Resulting approximation SNR= 9.66 dB Resulting approximation SNR= 9.66 dB