Abstract
Applying a binary mask to a pure noise signal can result in speech
that is highly intelligible, despite the absence of any of the target
speech signal. Therefore, to estimate the intelligibility benefit of
highly nonlinear speech enhancement techniques, we contend that
SNR is not useful; instead we propose a measure based on the simi-
larity between the time-varying spectral envelopes of target speech
and system output, as measured by correlation. As with previous
correlation-based intelligibility measures, our system can broadly
match subjective intelligibility for a range of enhanced signals. Our
system, however, is notably simpler and we explain the practical
motivation behind each stage. This measure, freely available as a
small Matlab implementation, can provide a more meaningful eval-
uation measure for nonlinear speech enhancement systems, as well
as providing a transparent objective function for the optimization of
such systems.
that is highly intelligible, despite the absence of any of the target
speech signal. Therefore, to estimate the intelligibility benefit of
highly nonlinear speech enhancement techniques, we contend that
SNR is not useful; instead we propose a measure based on the simi-
larity between the time-varying spectral envelopes of target speech
and system output, as measured by correlation. As with previous
correlation-based intelligibility measures, our system can broadly
match subjective intelligibility for a range of enhanced signals. Our
system, however, is notably simpler and we explain the practical
motivation behind each stage. This measure, freely available as a
small Matlab implementation, can provide a more meaningful eval-
uation measure for nonlinear speech enhancement systems, as well
as providing a transparent objective function for the optimization of
such systems.
| Originalsprog | Engelsk |
|---|---|
| Titel | Proceedings of the 17th European Signal Processing Conference (EUSIPCO-2009) |
| Antal sider | 5 |
| Forlag | EURASIP |
| Publikationsdato | 2009 |
| Status | Udgivet - 2009 |
| Begivenhed | European Signal Processing Conference - Glasgow, Storbritannien Varighed: 24 aug. 2009 → 28 aug. 2009 Konferencens nummer: 17 |
Konference
| Konference | European Signal Processing Conference |
|---|---|
| Nummer | 17 |
| Land/Område | Storbritannien |
| By | Glasgow |
| Periode | 24/08/2009 → 28/08/2009 |