Sound samples for

Sparse linear regression with structured priors and its application to denoising of musical audio

C. Févotte, B. Torrésani, L. Daudet and S. J. Godsill


IEEE Transactions on Audio, Speech and Language Processing



1) Glockenspiel

clean signal

Input SNR (dB)
0
noisy signal
10
noisy signal
20
noisy signal
(A) MMSE estimate
15.8
estimate
tonals  transients
22.5
estimate
tonals  transients
29.3
estimate
tonals  transients
(A) MIX estimate
15.7
estimate
tonals  transients
22.3
estimate
tonals  transients
29.0
estimate
tonals  transients
(B) MMSE estimate 16.0
estimate
tonals  transients
22.5
estimate
tonals  transients
29.2
estimate
tonals  transients
(B) MIX estimate 15.8
estimate
tonals  transients
22.3
estimate
tonals  transients
29.0
estimate
tonals  transients
(C) MMSE estimate 15.3
estimate
20.7
estimate
27.6
estimate
(C) MIX estimate 15.2
estimate
20.4
estimate
27.2
estimate
(D) MMSE estimate 13.7
estimate
tonals  transients
20.9
estimate
tonals  transients
28.1
estimate
tonals  transients
(D) MIX estimate 13.2
estimate
tonals  transients
20.2
estimate
tonals  transients
27.2
estimate
tonals  transients



2) Polyphonic audio

noisy signal
clean signal

Size of superframe
32768
65536
131072
(B) MMSE estimate
estimate
tonals  transients
estimate
tonals  transients
estimate
tonals  transients
(B) MIX estimate
estimate
tonals  transients
estimate
tonals  transients
estimate
tonals  transients


MMSE STSA estimate