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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Salam, F. Ben Aloui, N. Glotin, H. |
| Copyright Year | 2008 |
| Description | Author affiliation: Inf. & Syst. Sci. Lab., La Garde (Salam, F.; Glotin, H.) |
| Abstract | Some specificities of the speech signal may not well be addressed by the conventional speech processing. In this paper we focuses on a parcimonious representation of speech dynamics. We propose a novel coding strategy based on speech time-frequency quantization (TFQ) using simple Allen temporal interval algebra applied on subband voicing levels. Our compressed speech representation contains only 15 integers for a speech window up to 1 s long. We evaluate the discrimination power of these features for text independent speaker (60 hours, 62 speakers) or vowel recognition (1 hour, 6 vowels) on a referenced radio broadcast news used during evaluation campaign ESTER piloted by french intelligence agency. The 30 TFQ integers code ( feature compression factor (CF) of 26) classifies 62 speakers with an error reduction of 14% relatively to the random classifier, whereas the 390 float voicing features gives similar score. This illustrates the fact that TFQ may modelize co-articulation and speaking style. Preliminary model of independent speaker vowel identification using 15 integers TFQ features (CF of 6,4) gives an error reduction of 15,1% relatively to the random classifier, whereas the 48 float voicing level gives 31%. Further works to improve our parcimonious coding are then discussed. |
| Starting Page | 001531 |
| Ending Page | 001534 |
| File Size | 196211 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424416424 |
| ISSN | 08407789 |
| DOI | 10.1109/CCECE.2008.4564798 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2008-05-04 |
| Publisher Place | Canada |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Time frequency analysis Quantization Speech analysis Algebra Speech recognition Speech coding Speech processing Speaker recognition Robustness Signal processing Timefrequency |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering Hardware and Architecture |
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