Synopsys ARC® Audio AMR-NB software for the ARC processors consists of a speech system for devices such as mobile phones and voice over IP (VoIP) applications.

Included are a multi-rate encoder and decoder, a source controlled rate-scheme that includes dual voice activity detection and comfort noise generation, as well as an error concealment mechanism to compensate for the effects of transmission errors and lost packets.

Supported Cores

Synopsys ARC Audio AMR-NB Encoder/Decoder

Highlights

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Downloads and Documentation

Compliant to the following 3GPP (GSM) standards:

3GPP TS 26.071
3GPP TS 26.073
3GPP TS 26.074

Bitrates: 4.75, 5.15, 5.9, 6.7, 7.4, 7.95, 10.2, 12.2 kbps (8 speech coding modes)
Narrowband voice coding: 200-3400 Hz
Comfort Noise Generation (CNG)
Voice Activation Detection (VAD1 / VAD2)
Discontinuous Transmission (DTX)
Packet Loss Concealment (decoder)
Supports half rate and full rate channels
Supports bitrates from 4.75 Kbit/sec to 12.2 Kbit/sec (8 speech coding modes)
8 kHz sampling frequency with a resolution of 13 bits (in a 16 bit word)

ARC Sound GSM adaptive multi-rate narrow band speech codec

STARs

Description:	ARC Sound GSM adaptive multi-rate narrow band speech codec
Name:	dw_ac_amr_nb_codec
Version:	2013.06b
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_amrnb_codec
Product Code:	9379-0