APT ­IP CODEC (formerly known as WorldCast Horizon NextGen)

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SKU: APT-TFP0100 Category:




The APT IP CODEC (formerly known as WorldCast Horizon NextGen) offers the most complete set of IP features ever included in APT’s extensive range and features both our revolutionary “SureStream” technology and intelligent ScriptEasy scripting. In addition, this next generation IP audio codec also offers a wide range of algorithms as standard on a solid DSP platform with dual IP ports and redundant power supplies. Despite the high feature density, the APT IP CODEC is extremely competitively priced.

Perfect for STLs and mission-critical applications, the APT IP CODEC provides extensive control and monitoring capabilities to manage both your audio, data and network conditions and other equipment located at the transmitter site.



  • High quality audio transport over IP networks using RTP/UDP
  • Multi-Algorithm Support as standard, including HE-AAC
  • Non-destructive, cascade-resilient, real-time coding with aptX® Enhanced
  • 192/128 kHz Sampling supports digital MPX over AES and fully digital transfer
  • Dual IP ports configurable for back up
  • Robust DSP-based platform for mission-critical operation
  • Support of Specific-Source Multicast (SSM)
  • NTP System Time option for program time-alignment on multiple Decoder sites
  • Highly intuitive Network Management Software (NMS)
  • Embedded web server for access & control from any location
  • Dual IP Ports, configurable for management and redundant streaming
  • Distributed intelligence powered by ScriptEasy
  • VLAN aware interfaces for flexible network management
  • Allows management of network conditions such as packet size, buffers and QoS levels for optimum audio performance
  • Competitively priced professional platform
  • SureStream for broadcast-grade reliability and audio quality over open internet links
  • Support for unicast, multiple unicast & multicast networking ensuring minimal and flexible operational costs.




  • Professional & Affordable IP Audio Codec
  • Dual IP Ports, configurable for management and redundant streaming
  • Multi-algorithm support as standard, including HE-AAC, aptX® Enhanced & linear
  • Audio Backup from SD card
  • 192kHz Sampling supports transmission of Digital MPX over AES*
  • SureStream Technology enables broadcast-grade audio over inexpensive IP Links*
  • Distributed Intelligence powered by ScriptEasy
  • Forwarding of audio or non-audio UDP streams, such as PAD or HD Exporter Data
  • Auto-Detection of received audio format
  • Auxiliary data for transmission of RBDS / RDS or PAD
  • Network Security features with Firewall capability
  • 4 Opto-coupled Inputs and 4 Relay Outputs
  • Support for SNMP, Alarm & Event Logging
  • Reliable DSP-based architecture
  • Intuitive Web Interface



Ethernet Dual physical Ethernet ports, RJ45 for management and streaming
Virtual Network Virtual Interfaces and VLAN tagging
Analog I/O Electronically balanced, capacitive isolated XLR for Left/Right, Imp. Hi/Lo and 600 Ω
Digital Audio I/O AES-3, 24 Bit, transformer balanced, Imp. 110 Ω, XLR-Connectors
Digital Ref Input AES, transformer balanced, 110 Ω, XLR
Serial Aux Data 9 pin D Type, RS232 level
GPIO 15 pin D-Type
Management Web GUI, APT NMS, SNMP, XML API (available with a later release)
Asymmetric Audio Independent audio modes for sent and receive, Tx and Rx clock domains
Digital Operation Output FS, 32/44.1/48/96/192* kHz – software configurable
Audio Bandwidth 10Hz to 20kHz mono & stereo 88kHz for digital MPX over AES (option)
Standard Coding Algorithms aptX Enhanced 16 & 24 Bit, Linear PCM 16 & 24 Bit
MPEG 1/2 Layer II, MPEG4: AAC-LC/LD/ELD, MPEG2/4: HE-AAC v1/v2
Coding Delay min. 2ms on aptX Enhanced and higher depending on chosen algorithm
Dynamic Range 16 Bit >85dB, 24 Bit >120dB
Network and IP
IP Protocols Supported RTP/UDP/IP, RTCP, DNS, Dynamic DNS, DHCP, ICMP, IGMP, VLAN, UPnP (IGD), NTP, SNMP, SMTP, HTTPS (management)
IP Statistics Complete IP Statistics for each stream
Casting Modes Unicast, multiple unicast, multicast, multi- multicast
De-Jitter Buffer Buffer size 1 - 5,000ms adjustable, automatic packets re-sequencer
RTP/UPD Streaming and Modes Stereo audio multiple Tx-Streams, UDP stream forwarding, Auto-Detection of received Stream, Auto-Reply to sender
Quality of Service DiffServ, with separate DSCP values per stream, SureStream Technology* and Error Concealment
Backup Features SD Card for audio file storage and system backup
Network Security Service Filter and Firewall Features
Serial Data Rates (embedded) 1200, 2400, 4800, 9600 Baud
Serial Data Rates via IP 1200 - 115,200 Baud (8 rates)
AUX Data via UDP UDP forwarding PAD or private Data
GPIO 4 switch inputs, 4 relays; GPI transmitted as separate UDP stream or embedded in aptX Enhanced
Physical specification
19” rack mount 1U Dimensions (W / L / H) 44mm x 482mm x 160mm
Weight < 1,5 kg - 3.355 lbs
Main Power Supply 100-250 V / 50-60 Hz
Power Consumption < 20W
Guaranteed Working Temperatures 0°C - +55°C
Humidity Up to 95% relative humidity (non-condensing)