G.722

G.722 is an implementation of ITU-T G.722 standard. The G.722 coder uses Sub-band Adaptive Differential Pulse Code Modulation (SB-ADPCM) to code wideband speech at 64, 56, or 48 kbps. The frequency band is split into two sub-bands, and each sub-band is coded using ADPCM (similar to G.726). The algorithmic delay is 2 samples

Technical Specification

• Supports all the bit rates viz. 48/56/64 kbps at 16 khz sampling rate
• C callable API for initialization, encoding and decoding of speech data
• Supports Multi-channel capability
• Optimized implementation
• Bit Compliant with ITU-T test vectors

Applications

• Wideband IP telephony (IP Phones)
• Audio/Video Conferencing

Platforms

• Currently supported on TI C64x™ (TMS320C64xx™)and TI C64x+™/DaVinci™ (DM644x™)
• For further details contact mkt@ittiam.com

For a demonstration of G.722 capabilities contact mkt@ittiam.com