Main Article Content
Speech signal is analog in nature. The maximum frequency component present in human voice signal can be taken approximately as 3-4KHz.In many modern day applications, it is often required to process the speech signal in digital domain. For this reason, digital processing of analog speech signal is highly important. Delta Modulation is a scheme that can be used to implement digital representation of analog speech signal. In this work, the speech signal is modulated and demodulated using a very simple technique, known as Delta Modulation(DM). Moreover, several other aspects like silence removal, Signal to Noise ratio (SNR) calculation and Power Spectral Density(PSD) analysis has also been carried out.
This work is licensed under a Creative Commons Attribution 4.0 International License.
The copyright for all manuscripts/ documents belongs to the authors.
- Ming Yang, "Low bit rate speech coding", Potentials, IEEE, vol 23, No. 4, Oct-Nov. 2004 pp. 32-36.
- K. Satyapriya, and D. Yugandhar, "Performance Analysis of Speech Coding Techniques", International Journal of Advanced Research in Electrical Electronics and Instrumentation Engineering, vol. 2, no. 11, pp. 5725-5732, 2013.
- S. Haykin, “Communication Systems”, Fourth International Edition, Wiley Student Edition, 2012.pp 218-224.
- J.D. Gibson, "Speech coding methods, standards and applications", Circuits and Systems Magazine, IEEE, Vol. 5, No. 4, fourth Quarter 2005. Pp. 30-49.
- M. Hasegawa-Johnson, A. Alwan, "Speech Coding: Fundamentals and Applications", Encyclopedia of Telecommunications, 2003.