Speech Signal Compression Using Wavelet And Linear Predictive Coding
A new algorithm is proposed to compress speech signals using wavelet transform and linear predictive coding. Signal compression based on the concept of selecting a small number of approximation coefficients after they are compressed by the wavelet decomposition (Haar and db4) at a suitable chosen le...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Al-Khwarizmi College of Engineering – University of Baghdad
2017-12-01
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| Series: | Al-Khawarizmi Engineering Journal |
| Subjects: | |
| Online Access: | http://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/21 |
| _version_ | 1818406421924937728 |
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| author | Dr. Tarik Zeyad Ahlam Hanoon |
| author_facet | Dr. Tarik Zeyad Ahlam Hanoon |
| author_sort | Dr. Tarik Zeyad |
| collection | DOAJ |
| description | A new algorithm is proposed to compress speech signals using wavelet transform and linear predictive coding. Signal compression based on the concept of selecting a small number of approximation coefficients after they are compressed by the wavelet decomposition (Haar and db4) at a suitable chosen level and ignored details coefficients, and then approximation coefficients are windowed by a rectangular window and fed to the linear predictor. Levinson Durbin algorithm is used to compute LP coefficients, reflection coefficients and predictor error. The compress files contain LP coefficients and previous sample. These files are very small in size compared to the size of the original signals. Compression ratio is calculated from the size of the compressed signal relative to the size of the uncompressed signal. The proposed algorithms where fulfilled with the use of Matlab package |
| first_indexed | 2024-12-14T09:11:41Z |
| format | Article |
| id | doaj.art-7aa6da0281d045edaf4160af30395a74 |
| institution | Directory Open Access Journal |
| issn | 1818-1171 2312-0789 |
| language | English |
| last_indexed | 2024-12-14T09:11:41Z |
| publishDate | 2017-12-01 |
| publisher | Al-Khwarizmi College of Engineering – University of Baghdad |
| record_format | Article |
| series | Al-Khawarizmi Engineering Journal |
| spelling | doaj.art-7aa6da0281d045edaf4160af30395a742022-12-21T23:08:33ZengAl-Khwarizmi College of Engineering – University of BaghdadAl-Khawarizmi Engineering Journal1818-11712312-07892017-12-0111Speech Signal Compression Using Wavelet And Linear Predictive CodingDr. Tarik Zeyad0Ahlam Hanoon1Electrical Engineering Dept. / College of Engineering / University of BaghdadElectrical Engineering Dept. / College of Engineering / University of BaghdadA new algorithm is proposed to compress speech signals using wavelet transform and linear predictive coding. Signal compression based on the concept of selecting a small number of approximation coefficients after they are compressed by the wavelet decomposition (Haar and db4) at a suitable chosen level and ignored details coefficients, and then approximation coefficients are windowed by a rectangular window and fed to the linear predictor. Levinson Durbin algorithm is used to compute LP coefficients, reflection coefficients and predictor error. The compress files contain LP coefficients and previous sample. These files are very small in size compared to the size of the original signals. Compression ratio is calculated from the size of the compressed signal relative to the size of the uncompressed signal. The proposed algorithms where fulfilled with the use of Matlab packagehttp://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/21Keyword: Wavelet, Speech Coding, Linear Predictive Coding, Levinson Durbin. |
| spellingShingle | Dr. Tarik Zeyad Ahlam Hanoon Speech Signal Compression Using Wavelet And Linear Predictive Coding Al-Khawarizmi Engineering Journal Keyword: Wavelet, Speech Coding, Linear Predictive Coding, Levinson Durbin. |
| title | Speech Signal Compression Using Wavelet And Linear Predictive Coding |
| title_full | Speech Signal Compression Using Wavelet And Linear Predictive Coding |
| title_fullStr | Speech Signal Compression Using Wavelet And Linear Predictive Coding |
| title_full_unstemmed | Speech Signal Compression Using Wavelet And Linear Predictive Coding |
| title_short | Speech Signal Compression Using Wavelet And Linear Predictive Coding |
| title_sort | speech signal compression using wavelet and linear predictive coding |
| topic | Keyword: Wavelet, Speech Coding, Linear Predictive Coding, Levinson Durbin. |
| url | http://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/21 |
| work_keys_str_mv | AT drtarikzeyad speechsignalcompressionusingwaveletandlinearpredictivecoding AT ahlamhanoon speechsignalcompressionusingwaveletandlinearpredictivecoding |