Avi Peretz; Cagdas Gumusoglu MEE04:26, pp. 40. TEK/avd. för signalbehandling, 2004.
The technological developments in digital communication systems increase the usable
bandwidth of sound signals which results in increased intelligibility and naturalness of
the signal. The emerging digital communication systems enable the use of wideband
speech codec in a wide area of applications. Recognizing the need of high quality wide
band speech codec, several standardization activities have been recently conducted. G.722
is one of the first wideband speech codec standards implemented in the telecommunication
systems. In this thesis, after examining the G.722 wideband speech codec theoretically, a
real time implementation of G.722 wideband speech codec has been developed on Blackfin
BF533 DSP development kit from Analog Devices. Also, G.722 Codec is optimized by
using assembler for BF533. As a result to the thesis, very good speech performance is
obtained in real time implementation of G.722 and optimization increases the eciency
of Blackfin BF533 DSP drastically.