Noise Reduction in Speech Coding Technique Used in GSM
Pratiksha D. Gadge1, S.S. Gundal2
2Miss Pratiksha D. Gadge , Dept. of Electronics Engg. , Sheti & Shikshan Vikas Sanstha’s, Amrutvahini College of Engg.,Ghulewadi, Sangamner, India.
3Prof. S. S. Gundal , Dept. of Electronics. Engg. , Sheti & Shikshan Vikas Sanstha’s, Amrutvahini College of Engg.,Ghulewadi, Sangamner, India.
Manuscript received on 30 June 2019 | Revised Manuscript received on 05 July 2019 | Manuscript published on 30 July 2019 | PP: 267-270 | Volume-8 Issue-9, July 2019 | Retrieval Number: H7175068819/19©BEIESP | DOI: 10.35940/ijitee.H7175.078919
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The improvement in speech quality in mobile communication can be made by reducing the noise content. The low bit rate speech coding technique such as RPE-LTP in GSM with noise signal filtering can increase the complexity of complete mechanism. The paper presents noise signal reduction in RPE-LTP speech coding technique by using Zero Crossing Rate (ZCR) and pitch values. By using this technique quality measures of speech coding technique such as SNR, PESQ, MSE are improved as compared to RPE-LTP technique without affecting complexity.
Keywords: GSM, Pitch, RPE-LTP speech coder, ZCR
Scope of the Article: Signal and Speech Processing