Specialists in Speech and Audio Software Development

Material Copyright © 2023 ESPICO Ltd

OPUS

OPUS is a highly versatile audio codec. OPUS is used for interactive speech and music transmission over the internet, but is also intended for storage and streaming applications. It is standardised by the Internet Engineering Task Force (IETF). Opus can scale from low bit-rate narrowband speech to very high quality stereo music.

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

Features

• Bitrates from 6kb/s to 510 kb/s
• Supports 8,12,16, 24, 48 kHz input/output sampling rates
• Supports constant bitrate (CBR) and variable bitrate (VBR)
• Mono or stereo

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
• Video conferencing
• In-game chat
• Storage and streaming
• WebRTC