Search Contact information
University of Cambridge Home Department of Engineering
University of Cambridge > Engineering Department > Machine Intelligence Lab

Abstract for johnson_icassp00

Proc ICASSP '00, Istanbul, Turkey

A METHOD FOR DIRECT AUDIO SEARCH WITH APPLICATIONS TO INDEXING AND RETRIEVAL

S.E. Johnson & P.C. Woodland

June 2000

A technique for searching audio data to find an exact match for a given piece of cue-audio is described. The method uses a cepstral parameterisation of the audio and a covariance-based distance metric to quickly locate direct repeats. Results on data from ABC news broadcasts show that the method can successfully locate matches several hundred times faster than real-time and requires less than a second of cue-audio. By applying the match recursively to the data, repeated sections of audio, which nearly always correspond to non-news items such as commercials and theme-music, can be identified. Experiments show that the application of the technique can also lead to improved information retrieval using automatically transcribed broadcast data.


| (ftp:) johnson_icassp00.ps.gz | (http:) johnson_icassp00.ps.gz | (ftp:) johnson_icassp00.pdf | (http:) johnson_icassp00.pdf | (http:) johnson_icassp00.html/ |

If you have difficulty viewing files that end '.gz', which are gzip compressed, then you may be able to find tools to uncompress them at the gzip web site.

If you have difficulty viewing files that are in PostScript, (ending '.ps' or '.ps.gz'), then you may be able to find tools to view them at the gsview web site.

We have attempted to provide automatically generated PDF copies of documents for which only PostScript versions have previously been available. These are clearly marked in the database - due to the nature of the automatic conversion process, they are likely to be badly aliased when viewed at default resolution on screen by acroread.

© 2005 Cambridge University Engineering Dept
Information provided by milab-maintainer