# CODECPRO G.723.1 CODEC  ITU-T STANDARD CODEC

The G.723.1 codec was originally developed for videophones that deliver video and speech over regular phone lines (PSTN). G.723.1 is a dual-rate speech codec designed for the ITU-T H.323 and H.324 audio and videoconferencing/telephony standards. The G.723.1 specifies how the audio portion of the conference is to be coded. It can perform full duplex compression and decompression functions for videoconferencing products.

# G.723.1 Codec Overview

The memory and CPU details are generic Standard specifications.

# G.723.1 Codec Technical Specifications

- Bandwidth: 200-3400 Hz
- Standardized: ITU-T 1995
- Technology: MP-MLQ/ACELP
- Bit rate: 5.3/6.3 kbps
- Delay (msec): 37.5
- Frame size (msec): 30
- Lookahead (msec): 7.5
- Quality: Narrowband / PSTN
- Complexity (MIPS): 25
- ROM (bytes): 180K
- RAM (bytes): 20K + 3K/ch.