The Synopsys ARC® OPUS codec is designed for interactive speech and audio transmission over the internet. It is designed by the IETF Codec Working Group and incorporates technology from Skype’s SILK codec and Xiph.Org’s CELT codec.

The OPUS codec is designed to handle a wide range of interactive audio applications, including Voice over IP, video conferencing, in-game chat, and even remote live music performances. It can scale from low bitrate narrowband speech to very high quality stereo music.

The ARC OPUS codec supports ARC EMxD processors. The CELT portion of the codec is specifically optimized for ARC EMxD. SILK codec is implemented for ARC EMxD without target optimization.

Supported Cores

Synopsys ARC Audio OPUS Codec

Highlights

Products

Downloads and Documentation

Royalty free, IETF Standardized Universal Voice/Audio Codec
Bitrates of 6..510 kbps
Sampling rates from 8 kHz (narrowband) to 48 kHz (fullband)
Frame sizes from 2.5 ms to 60 ms
Supports both constant bitrate (CBR) and variable bitrate (VBR)
Supports speech and music
Supports mono and stereo
Dynamically adjustable bitrate, audio bandwidth, and frame size
Good loss robustness and packet loss concealment (PLC)
Wide audio bandwidth
Speech and audio codec modes supported

ARC Sound OPUS Codec

STARs

Description:	ARC Sound OPUS Codec
Name:	dw_ac_opus_codec
Version:	2018.03
ECCN:	3E991/NLR
STARs:	Open and/or Closed STARs
myDesignWare:	Subscribe for Notifications
Product Type:	DesignWare Cores
Documentation:	Contact Us for More Information
Download:	arc_opus_codec_EMxD
Product Code:	C075-0