Abstract View

Author(s): M.R. Khan

Email(s): mrkhan63@gmail.com

Address: NIT Raipur, C.G., India

Published In:   Volume - 20,      Issue - 1,     Year - 2007

DOI: Not Available

ABSTRACT:
this paper describes the implementation of spectrally efficient ACELP based speech coding algorithm with a target bit rate of 7.2 per second (Kbps) suitable for speech communication over or wired line Communications. The 8 kbps ITU G.729 [1] best speech coding algorithm has been modified so as to achieve lower bit rate and targeting low computational and search complexity, at the same time maintaining nearly the similar quality of speech reconstruction. The short-term spectral estimates are updated every 10ms (frame) and encoded as line spectrum frequencies (LSF). In order to reduce the bit rate and search complexity a pre-selection based sub-optimal, intraframe LSF vector quantization is proposed. The long-term protection (LTP) parameters are updated every 5ms (subframe) and implemented as modified open loop method (MOLP) with a pre-selection over a tri-valued speed signal, which considerably reduces the search complexity of the adaptive code book search. An algebraic structure and fixed code book based excite ation is proposed with reduced search complexity and combined optimisation of the LTP gain and fixed codebook gain for every subframe. The simulation results show that the performance of the proposed speech coding algorithm is nearly same as G.729 with lesser complexity and shorter processing delays.

Keywords:

Cite this article:
Khan (2007). Reduced Complexity Low Delay, High Quality Spectrally Efficient Algebra Code Excited Linear Prediction (Acelp) Speech Coding Algorithm. Journal of Ravishankar University (Part-B: Science), 20(1), pp.1-12.


References not available.

Related Images:



Recent Images



Study of the Enhanced Efficiency of Crystalline Silicon Solar Cells by Optimizing Anti Reflecting Coating using PC1D Simulation
Formulation of Topical Itraconazole Nanostructured Lipid Carriers (Nlc) Gel for Onychomycosis
Cosmetic Testing Equipment: Device and Types of Equipment for Dermatological Evaluation for Women’s Skin
Oxidative stress: Insights into the Pathogenesis and Treatment of Alopecia
UV Spectroscopy Analysis for Itraconazole
Challenges and Potential of Perovskite Solar Cells
Kinetic Study of Solvent Effect on the Hydrolysis of  Mono-3, 5-Dimethylaniline Phosphate
OLED: New Generation Display Technology
Parametric study of AlGAN/GaN UV-Led Based on Quantum Confined Stark Effect (QCSE)
Analysis of High Efficient Perovskite Solar Cells Using Machine Learning

Tags


Recomonded Articles:

Author(s): Naman Shukla; K. Anil Kumar; Madhu Allalla; Sanjay Tiwari

DOI: 10.52228/JRUB.2022-35-1-2         Access: Open Access Read More

Author(s): S. Bera; K. Thakur; P. Vyas; .M.Thakur; A. Shrivastava

DOI: 10.52228/JRUB.2021-34-1-3         Access: Open Access Read More

Author(s): Narendra K. Garg; A.K. Bansal

DOI:         Access: Open Access Read More

Author(s): B K Senapati; P K Panigrahi

DOI:         Access: Open Access Read More

Author(s): Gulab Singh Verma; Lokesh Kumar Sahu

DOI: 10.52228/JRUB.2022-35-1-9         Access: Open Access Read More