C-based design flow: A case study on G.729A for Voice over internet protocol (VoIP)

Author

Reshadi, Mehrdad ; Gorjara, Bita ; Gajski, Daniel

Author_Institution

Center for Embedded Comput. Syst., Univ. of California Irvine, Irvine, CA

fYear

2008

fDate

8-13 June 2008

Firstpage

72

Lastpage

75

Abstract

In this paper we present the design of a G.729a codec in a C- based design flow. The codec is used in VoIP applications for sending speech over internet protocol. We started from the standard reference C implementation and generated several customized designs using the NISCT C-to-RTL toolset. Our final designs could run at very low clock frequencies (11 MHz for the decoder and 30 MHz for the coder) while meeting the timing requirements of the standard. We present these designs and the corresponding C-based design flow in this paper.

Keywords

C language; CAD; Internet telephony; codecs; C implementation; C-based design flow; G.729a codec; NISCT C-to-RTL toolset; VoIP; frequency 11 MHz; frequency 30 MHz; voice over internet protocol; Algorithm design and analysis; Application specific processors; Code standards; Compression algorithms; Decoding; High level synthesis; Internet telephony; Productivity; Speech codecs; Timing; ASIP; C-based design flow; C-to-RTL; G729A; HLS; NISC; VoIP;

fLanguage

English

Publisher

ieee

Conference_Titel

Design Automation Conference, 2008. DAC 2008. 45th ACM/IEEE

Conference_Location

Anaheim, CA

ISSN

0738-100X

Print_ISBN

978-1-60558-115-6

Type

conf

Filename

4555784