Application of Wavelet LPC Excitation Model for Speech Compression
This paper presents an application of linear predictive coding (LPC) excitation wavelet models for low bit- rate, high-quality speech compression.The compression scheme exploits the model properties, especially magnitude dependent sensitivity, scale dependent sensitivity, and limited frame length. W...
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| Format: | Article |
| Language: | English |
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ITB Journal Publisher
2008-05-01
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| Series: | ITB Journal of Engineering Science |
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| Online Access: | http://journal.itb.ac.id/download.php?file=B08064.pdf&id=328&up=9 |
| Summary: | This paper presents an application of linear predictive coding (LPC) excitation wavelet models for low bit- rate, high-quality speech compression.The compression scheme exploits the model properties, especially magnitude dependent sensitivity, scale dependent sensitivity, and limited frame length. We use the wavelet model in an open-loop dither based codebook scheme. With this approach, the compression yields a signal-to-noise ratio of at least 11 dB at rates of 5 kbit/s. |
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| ISSN: | 1978-3051 |