An embedded delta modulator system for coding speech signals

Author

Phan Chee Hou ; binti Ngadiran, Ruzelita ; bin Ahmad, Muhammad Imran ; Obad, Yahya

Author_Institution

Sch. of Comput. & Commun. Eng., Univ. Malaysia, Arau, Malaysia

fYear

2014

fDate

19-21 Aug. 2014

Firstpage

176

Lastpage

180

Abstract

This paper discusses the comparison between two modulation systems, pulse code modulation and delta modulation. The objective is to identify a suitable modulation for speech coding by comparing delta modulation (DM) with pulse code modulation (PCM). The reconstruction performance of the delta modulation is compared with the pulse code modulation by using MATLAB, SIMULINK and finally implemented DSP Processor for real time realization. The simulation result using SIMULINK shows that the delta modulation performs better than pulse code modulation. Hence, delta modulator is implemented for real time test on DSP board, TMS320C6416. Delta modulation is successfully implemented in real time realization and can be further improved to reduce noise for future works.

Keywords

delta modulation; digital signal processing chips; pulse code modulation; speech coding; DM; DSP processor; MATLAB; PCM; SIMULINK; TMS320C6416; delta modulation; embedded delta modulator system; pulse code modulation; speech signal coding; Delta modulation; Encoding; Modulation; PSNR; Phase change materials; Quantization (signal); Receivers; delta modulation; pulse code modulation; speech signal;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Design (ICED), 2014 2nd International Conference on

Conference_Location

Penang

Type

conf

DOI

10.1109/ICED.2014.7015794

Filename

7015794