IQOYA *CALL/LE for IP audio remote broadcasting

Key Workflow: Build cost-effective, reliable, broadcast quality audio contribution links from remote talent to studio over unreliable Internet and Mobile networks

For non-permanent installations, IQOYA *CALL/LE is all you need to send live, broadcast quality audio to the radio studio quickly and easily. Specifically designed for non-technical users, it makes IP contribution as simple as placing a call from a smartphone. Its streaming engine FluidIP enables interoperability and optimized compensation for unreliable networks. Any administrator can anticipate contribution scenarios via the cloud, freeing remote talent from technical hassles.

At a glance

IQOYA *CALL/LE provides a full-duplex stereo connection between a remote site and a studio

• Ultra-simple to use: click to dial from contact list just like a smartphone. Dialling from the Web page automatically provides an optimized symmetrical RTP connection without worrying about infrastructure, networks, or audio technical parameters
• Easy to manage: all setups are enclosed in the Administrator’s web page. Configure locally or via IQOYA*CLOUD app to manage in-the-field contribution scenarios
• Smart quality administration: a smart bar graph displays connection quality in real time. Even inexperienced users can check and manage set-ups during actual field situations
  

Key features

• Super-fast dial-up and configuration via web-based interface
• Quick profiles set-up for Audio and Network formats
• Direct IP connection to Axia Livewire and Livewire+, AES67 and RAVENNA consoles
• ACIP (EBU Tech 3326) compliant in symmetric RTP mode and with optional SIP signalling
• Symmetrical RTP mode with smart signalling and auto-answer for simple infrastructures without SIP
• Ultra-low latency (e.g. less than 30 ms analog end-to-end, with Opus)
• Superior 24-bit audio quality (THD < -90 dB)
• 2 Ethernet IP ports for WAN and LAN-audio connections
• Superior AAC Fraunhofer error concealment
• Contacts and smart Profiles managed from anywhere and at anytime by the IQOYA *CLOUD SaaS application.
• Optional SIP to access Active phone book and IQOYA *CLOUD Monitoring and Control functions

Audio performances

• Sampling frequencies available:
  • analog I/O:8kHz up to 96 kHz
  • digital I/O (AES): 22kHz up to 216 kHz, with SRC on inputs

• Frequency response at 48 kHz: 20 Hz-20 kHz +/-0,3 dB
• IP audio inputs and outputs:
  • 1 native Axia Livewire(™) stereo channel, slaved to Livewire network clock
  • 1 AES67/RAVENNA stereo channel, slaved to PTP network clock
• 1 AES/EBU (stereo) and 2 balanced analog line (mono) inputs
• Maximum analog input level/impedance: +24 dBu / >10 kΩ

• Analog input gain: 0 dB to +18 dB in 0.5 dB steps
• Analog input THD + Noise at 1 kHz / –2 dBFS: < -90dB, Input gain 0 dB to +18 dB
• 1 AES/EBU (stereo) and 2 servo-balanced analog (mono) outputs
• Maximum analog output level / impedance: + 24 dBu / < 100 Ω
• Analog output THD + Noise at 1 kHz / -1 dBFS: < -95 dB, load impedance > 5 kΩ

Professional quality streaming

• Simultaneous encoding and decoding of different audio formats
• Extremely low back-to-back latency (down to 10 ms in PCM)
• Real time measurement of network path
• Management of network conditions (jitter, lost packets, duplicated packets, disordered packets)
• Selectable FECs as per RFC2733
• Additional compensation of a lost packet
• AAC error concealment implementation
• A smart clock synchronization on incoming IP stream guaranteeing audio integrity

User interface and system management

• Status: 6 status LEDs, 3 colors
• Stereo headphones output: 6.35 mm jack, Max output level = 2×50 mW / 2×32 Ω load
• PC interface: Web pages on local web server
• SNMP v2 monitoring

Audio-over-IP formats and protocols

• Audio networking format: Full compliance with ACIP (EBU Tech 3326)
• Symmetric RTP mode with auto answer: ACIP RTP/UDP compliant. Automatic detection of audio format from IQOYA *MOBILE, IQOYA *CALL and IQOYA *CALL/LE
• Included Audio stream formats: PCM linear 16/24 bits – ITU G.711/722 – ISO MPEG-1/2 Layer I, Layer II, Layer III – Fraunhofer Encode and Decode MPEG-4 pack (AAC-LC, AAC-LD, HE-AACv1*, HE-AACv2*, AAC-ELD)
• Opus compression* speech and music
• Auxiliary data transport: in-band RS232 and GPIOs data tunneling
• Optional SIP to access Active phone book and IQOYA *CLOUD Monitoring and Control functions
• Dual Mono mode*

Advanced Networking

• 2 Ethercon IP ports for separate control traffic and IP audio streaming
• VLAN tagging (IEEE 802.1Q, 802.1p) DSCP support

Connectivity

• Analog and digital I/Os: Neutrik XLR-3
• IP network: 2 Neutrik EtherCon RJ45 for ACIP and Livewire networks
• 4GPI/4GPO on 2 Sub-D25
• Auxiliary data: 1 Sub-D9 RS232 port
• SDHC slot for memory card

Environment

• Size: 19”/1U rackmount
• Power consumption: 11W typical / 15W max
• Power supply: 100 – 250 VAC, 50-60 Hz

The IQOYA range of IP audio devices and Visiblu-based radio automation systems developed by Digigram’s development partners offer a direct, low latency connectivity to Axia Livewire networks.

(*) With audio on AES/EBU or analog inputs/outputs