IQOYA *LINK Stereo IP Audio Codec

IQOYA *LINK Stereo IP Audio Codec
IQOYA *LINK Stereo IP Audio Codec
Key Workᴀow: Studio to transmitter links, Studio to studio links
IQOYA *LINK is a stereo IP audio codec specially designed for STL and SSL applications based on IP networks. It has been developed
in close collaboration with leading European Telcos around the following themes: full IP connectivity, reliability, IP streaming
robustness on managed and unmanaged networks, continuity of audio service on transmitter sites, full remote control and monitoring
from SNMP supervisors.
At a glance
IQOYA *LINK is based on a low consumption, fanless, and robust dedicated hardware platform. It includes a rich set of features
allowing for the reliable transport of audio content over managed and unmanaged networks (FECs, redundant dual streaming with
time diversity, VLANs, QoS, IGMP), and for continuity of audio service on transmitter sites (3 backup levels, backup on SD card,
switchable hardware by-pass of audio inputs to outputs in case of power supply failure). It can be used in analog and AES/EBU
environments, as well as Livewire, RAVENNA and AES67 environments. In addition, IQOYA *LINK can be fully controlled and monitored
through SNMP.
Designed for 24/7 operations
Supports legacy audio connectivity (analog, AES/EBU), as well as AoIP (Livewire, AES67, and Ravenna)
Reliable IP streaming: FECs, redundant dual streaming with time diversity, management of network errors, real time network metrics
Continuity of audio service on transmitter site (3 backup levels, hardware by-pass of audio inputs to outputs in case of power
supply failure)
Wide range of supported audio formats
Full remote control, monitoring, and alarming through SNMP and from WEB GUI
Key features
Full-duplex stereo IP audio codec
Low consumption and fanless platform adapted to transmitter sites (strong resilience to EMI)
Two 10/100 Mbits/s Ethernet ports for separate control traf c and IP audio streaming, or for seamless stream failover (dual
redundant streaming), or for a fail-over on a secondary network
Balanced analog and AES/EBU inputs/outputs
Support for Livewire, AES67, RAVENNA inputs and outputs
Audio formats: PCM, MPEG L2 & L3, Fraünhofer AAC-LC, AAC-LD, AAC_ELD, HE-AACv1, HE-AACv2, and optional CSR aptX Enhanced
Streaming protocols: RTP, Icecast/Shoutcast, MPEG-TS/IP SPTS on RTP or UDP
VLAN tagging (IEEE 802.1q, 802.1p), DSCP, SNMP (SET,GET, Traps), supported by Dataminer
Unicast, multi-unicast, multi-multicast, IGMPv3
FECs and redundant dual streaming with time diversity up to 2 seconds
In-band auxiliary data tunneling (serial data, 8 GPIs)
Continuity of audio service on transmitter sites:
– Backup: IP stream (RTP, Icecast/Shoutcast), playlist/ sound les on local SD card, audio inputs
– 3 backup levels
– Switchable hardware by-pass of inputs to outputs in case of power supply failure
Real time metrics on received RTP stream
Optional synchronization of decoders for multi-frequency networks (MFN)
Intuitive web interface with access rights
Front panel LCD display, keypad
Dedicated hardware platform with strong EMC resilience (10 V/m)
Fanless design, low-power consumption <10 W
Lightning protected network interfaces
Digigram FluidIPTM streaming engine
3 levels of backup with selectable source:
– IP stream: RTP or Shoutcast/Icecast on any of the 2 network ports
– Physical input (analog or AES/EBU)
– Sound le or .m3u playlist on SDHC card
Con gurable backup switching criteria (IP stream loss/recovery duration)
Alarm upon silence detection on audio inputs
Professional quality streaming and continuity of service
Simultaneous encoding and decoding at the same audio format or different formats
Dual redundant streaming (unicast, multicast) with time diversity (up to 1 sec of delay on the redundant stream)
Real time measurement of network path quality for main and backup streams
Management of network conditions (jitter, lost packets, duplicated packets, disordered packets)
Selectable FECs as per RFC2733 (+10%, +20%, +33¨%, +50%, +100%)
AAC error concealment implementation
Optional audio synchronisation of several IQOYAs via NTP for MFN
– Constant delay between any pair of decoders of maximum 20ms on a WAN (5ms on a LAN)
– Possibility to delay the play out up to 6 seconds on the decoders
Smart synchronization on the incoming IP stream
Ultra low latency (e.g. typical 7ms in PCM, 10 ms in Enhanced-aptX, analog end-to-end)
Hardware by-pass of inputs to outputs in case of power failure
FNS/ACIP compliant IP audio transport (EBU Tech 3326) (RTP/UDP)
HTTP streaming (Icecast/Shoutcast)
MPEG-TS/IP streaming (UDP or RTP)
Auxiliary data transport: in-band RS232 (RDS UECP) and GPIOs data tunneling
Advanced Networking
2 Ethercon RJ45 IP ports. Can be used for:
– Separate management traf c and IP audio streaming
– Dual port redundant streaming
– Network backup
VLAN tagging (IEEE 802.1Q, 802.1p)
DSCP support
Unicast, mutli-unicast, multicast, multi-multicast (IGMPv3)
Control, monitoring, alarming trough SNMP (SET, GET, Traps) with MIB for supervisor monitoring
Alarms activable on GPOs, SNMP traps, and log traces
Persistent log le in case of power failure
Intuitive and secure WEB connection (https) and FTP connections
WEB user rights management: Read Only, User, Administrator
Save/load full codec con guration on SDHC card
Physical speci᐀�cations
– 19 1U” rack:
– without mounting brackets: 44 x 441 x 248 mm (~ 1.73 x 17.36 x 9.76 inches)
– with mounting brackets: 44 x 445 x 248 mm (~ 1.73 x 17.52 x 9.76 inches)
Power supply: 100 – 250 VAC, 50-60 Hz switching-mode, automatic voltage detection
Temp / humidity (non-condensing)
– Operating: 0°C – 50°C / 0% – 95%
– Storage: -5°C – 70°C / 0% – 95%
Power consumption at 240 V / 100V: 0.11 A max. / 0.27 A max
Net weight : 3.1 kg (∼6.85 lbs)
Analog line inputs (mono): 2 balanced
Maximum input level/impedance: +24 dBu / > 10 kΩ
Digital input: 1 stereo AES/EBU
Analog input gain: 0 dB to +18 dB in 0.5 dB steps
Sampling frequencies available:
– analog: 16 kHz up to 96 kHz at 24-bit data quantization
– digital (AES): 22 kHz up to 216 kHz using SRC at 24-bit data quantization
Dynamic range (A-weighted):
– Input gain 0 dB:> 107 dB
– Input gain +18 dB: > 98 dB
THD + noise 1 kHz at –2 dBfs:
– Input gain0 dB: > -90 dB
– Input gain +18 dB: > -90 dB
Analog channel cross talk at 1 kHz:
– 1 kHz: < -110 dB
– 15 kHz: <-100 dB
Frequency response: 20 Hz-20 kHz +/- 0,3 dB at 48 kHz
Additional inputs IQOYA *LINK: 8 OptoIsolated GPIs
Analog outputs:
– 2 servo-balanced mono audio outputs, maximum output level = 24 dBu
– Headphones: max. output level = 8 dBu (2×50 mW / 2×32 Ω load)
Impedance IQOYA *LINK: < 100 Ω / IQOYA *LINK/LE: < 50 Ω
Sampling frequencies available: 22 kHz up to 96 kHz at 24-bit data quantization
Signal-to-noise ratio:
– Line: > 105 dB, output ref +23 dBu for -1 dBfs, output impedance > 5 kΩ
– Headphones: > 90 dB at 2×50 mW / 2×32 Ω
THD + noise at 1 kHz
– Line: < -95 dB, output ref +23 dBu for -1 dBfs, output impedance > 5 kΩ
– Headphones: < -60 dB at 2×50 mW / 2×32 Ω
Crosstalk at 1 kHz
– Line: < -110 dB at 1 kHz, output ref +24 dBu for 0 dBfs, output impedance > 5 kΩ
Frequency response at 48 kHz: 20 Hz-20 kHz +/-0.3 dB
Additional outputs
– Stereo headphones (6.35mm jack), max 2×50 mW / 2×32 ohm load
– 8 relay GPOs characteristics: – 3 SPDT outputs: common, norm. open, .norm. closed,
max 220 VDC/250 VAC,
max 60 W, 62.5 VA
max. continuous/switching current: 2 A/3 A
Analog line inputs: 2 female XLR-3
Analog outputs: 2 male XLR-3
Digital input: 1 female XLR-3
Digital output: 1 male XLR-3
Headphones output: 6.35 mm jack
IP network: 2 female Neutrik™ EtherCon RJ45™ (IP Audio, IP Backup/Control)
GPIO: 2 female Sub-D 25
Additional ports
RS232 (UART): 1 male Sub-D9
USB: 1 USB 1.1 type A, female
SD card reader for SDHC memory card
Audio formats
PCM linear 16/20/24 bits
ITU G.711/722
ISO MPEG-1/2 Layer I, Layer II, Layer III
CSR aptX® Enhanced
HTTPS web server
SNMPv2 SET, GET, Traps
Skyline Dataminer driver
FTP (for SDHC card content management)
Low TCO: high MTBF (>150 years), no preventive maintenance
Easy integration into existing supervision systems: SNMP control, monitoring and alarming, supported by Dataminer
Ongoing product support through Digigram Support & Maintenance contracts
Contact us
Digigram S.A.
Digigram Asia Pte Ltd
Serving Asia and Oceania
Serving Europe, Middle East, Africa and Americas
82/84 Allée Galilée
38330 Montbonnot - France
60 Albert Street
#09-11 OG Albert Complex
Singapore 189969
Tel: +33 (0)4 76 52 47 47
Fax: +33 (0)4 76 52 18 44
Email :
Tel: +65/6291 2234
Fax: +65/6291 3433
Email :
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