A study of line spectrum pair frequencies for speech recognition
- 6 January 2003
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 485-488 vol.1
- https://doi.org/10.1109/icassp.1988.196624
Abstract
The line spectrum pair (LSP) frequency representation has recently been proposed as an alternative linear prediction (LP) parametric representation. In the context of speech coding, this representation shows better quantization properties than other LP parametric representations. The LSP representation is studied for speech recognition. Several distance measures based on this representation are investigated The weighted LSP distance measure is found to result in the best performance. The performance of the weighted LSP distance measure is compared with that of the other popular LP distance measures (such as the Itakura, cepstral, weighted cepstral, root-power-sum, log area ratio and reflection coefficient distance measures). The weighted LSP distance measure is found to perform significantly better than these popular LP distance measures.Keywords
This publication has 5 references indexed in Scilit:
- Effect of preemphasis on vowel recognition performanceSpeech Communication, 1984
- Evaluation of various linear prediction parametric representations in vowel recognitionSignal Processing, 1982
- Synthesis-based recognition of continuous speechThe Journal of the Acoustical Society of America, 1982
- On the performance of the quefrency-weighted cepstral coefficients in vowel recognitionSpeech Communication, 1982
- Frequency of Occurrence of Phonemes in Conversational EnglishLanguage and Speech, 1978