EUROSPEECH 2001 Scandinavia
7th European Conference on Speech Communication and Technology

Aalborg, Denmark
September 3-7, 2001


The IFA Corpus: a Phonemically Segmented Dutch "Open Source" Speech Database

Rob J. J. H. van Son (1), Diana Binnenpoorte (2), Henk van den Heuvel (2), Louis C. W. Pols (1)

(1) University of Amsterdam, The Netherlands
(2) Nijmegen University, The Netherlands

An open source database of hand-segmented Dutch speech was constructed with off-the-shelf software using speech from 8 speakers in a variety of speaking styles. For a total of 50,000 words, speech acquisition and preparation took around 3 person-weeks per speaker. Hand segmentation took 1,000 hours of labeling altogether. The asymptotic segmentation speed was about one word, or four boundaries, per minute. An evaluation showed that the Median Absolute Difference of the segment boundaries was 6 ms between labelers, and 4 ms within labelers. Label differences (substitutions, insertions, and deletions) were found in 8% of the segments between labelers and 5% within labelers. Compiled data are available in relational database format for querying with SQL.

Full Paper

Bibliographic reference.  Son, Rob J. J. H. van / Binnenpoorte, Diana / Heuvel, Henk van den / Pols, Louis C. W. (2001): "The IFA corpus: a phonemically segmented dutch "open source" speech database", In EUROSPEECH-2001, 2051-2054.