On the mutual information between frequency bands in speech

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

In this paper we investigate the mutual information in speech between the spectral envelope of the high frequency band and low frequency bands of various widths. Direct methods on the computation of the mutual information often result in an excessive amount of data required even for modest situations. We reduce the required amount of data by quantizing the low band leading to a lower bound expression on the mutual information. We indicate by simulation that this lower bound is in the same order of magnitude as the true mutual information. Simulations on speech show that we have no less than 0.1 bit of shared information between the slope of the high band and the low frequency band from 0 - 4 kHz. Performing the analogous simulation with the gain of the high band we obtained no less than 0.45 bit of mutual information.

Details

Authors
External organisations
  • External Organization - Unknown
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Mathematics
Original languageEnglish
Title of host publication2000 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, PROCEEDINGS, VOLS I-VI
PublisherIEEE--Institute of Electrical and Electronics Engineers Inc.
Pages1327-1330
StatePublished - 2000
Peer-reviewedYes
Externally publishedYes
EventIEEE International Conference on Acoustics, Speech and Signal Processing, 2000 - Istanbul, Turkey

Publication series

Name
ISSN (Print)1520-6149

Conference

ConferenceIEEE International Conference on Acoustics, Speech and Signal Processing, 2000
Abbreviated titleICASSP2000
CountryTurkey
CityIstanbul
Period2000/06/052000/06/09