Specialists in Speech and Audio Software Development

Material Copyright © 2024 ESPICO Ltd

ITU G.722

ITU-T recommendation G.722 is a 7 kHz wideband speech codec operating at 48, 56 and 64 kbit/s. The codec is based on Sub-Band Adaptive Differential Pulse Code Modulation (SB-ADPCM). Data is sampled at 16 kHz using 14 bits, resulting in superior audio quality to traditional telephony interfaces.

The ESPICO implementations are highly optimised, realising low memory and MHz requirements. Contact ESPICO for specific resource requirements.

Features

• Bit-exact with ITU-T G.711 recommendation
• Multi-channel
• Re-entrant

Availability

ESPICO’s optimised solution can be ported to any platform. Supported platforms include:

• ZSP Cores including ZSP400, ZSP500, ZSP800 families
• ARM including Cortex and NeonTM  
• MIPS32 74KTM
• Ceva DSP Cores

Applications

• VoIP
• Communication devices
• IP-PBX