Media

Artificial Bandwidth Extention using the Constant Q Transform

P. Bachhav, M. Todisco, M. Mossi, C. Beaugeant and N. Evans

(Submitted to ICASSP 2017)

 

NB

Original WB

OG-OP

EG-EP (Proposed)

M1 M1 M1 M1
M2 M2 M2 M2
M3 M3 M3 M3
M4 M4 M4 M4
M5 M5 M5 M5
F1 F1 F1 F1
F2 F2 F2 F2
F3 F3 F3 F3
F4 F4 F4 F4
F5 F5 F5 F5

 


 

An experimental framework for the derivation of

perceptually-optimal noise suppression functions

A. Daniel, L. Lepauloux, C. Yemdji, N. Evans and C. Beaugeant

(Submitted to ICASSP 2013)

 

Demonstration video:

 

Sound samples:

These samples allow for a direct comparison between a conventional Wiener filter and a "perceptually-optimal" filter applying the mean experimental noise suppression curve obtained in this paper. It is recommended to listen to these samples through headphones at a comfortable level to be in the same conditions as the participants.

Clean speech, additive white noise, noisy speech (0 dB SNR).

Utterance #1: Wiener filter, perceptual filter

Utterance #2: Wiener filter, perceptual filter

Utterance #3: Wiener filter, perceptual filter