Alta™: Software Caption Encoder for Live IP Video

Alta is the answer for any broadcaster planning closed captioning / subtitling in IP video production environments. The virtualized technology connects these modern workflows to the iCap Network - making live captioning/subtitling a seamless and natural part of your programming. Alta powers your application with 24/7 connectivity to thousands of iCap certified captioners across the globe. Additionally, SCTE-35 Regionalization and Ad Triggering Digital Program Insertion cues can be both injected into transport streams as well as fully read and analyzed. Supports USA / EU / UK captioning and subtitling standards.

Alta Offers Broadcasters:

Two Product Modes - Each VM is configured for processing either MPEG Transport Streams or SMPTE 2110 uncompressed IP video. The SMPTE 2110 Alta VM supports PTP, NMOS IS-04 and IS-05 Connection Management, and the JT-NM TR-1001 "Full Stack" specification.

Seamless Transitioning - With Alta, modern IP and legacy SDI workflows are unified under the same iCap Cloud - allowing a seamless transition from hardware-driven caption insertion.

Flexible Deployment - Deployed as a standalone virtual machine on VirtualBox, Cisco, or Microsoft Controllers. The technology is also available as a software library for custom integration.

Software-Driven Control - Controlled through a web browser interface or via scripting automation tools.

SCTE-35 Insertion Component - A licensed add-on for injecting SCTE-35 program insertion cues directly into MPEG transport streams (trigger with any commercial or custom trigger management software using the SCTE-104 protocol standard over the network).

SCTE-35 Full Decoding and Logging - Don't miss valuable ad opportunities! All SCTE-35 triggers from incoming streams are timestamped and logged to disk for future inspection, with a complete message parser and API access to the raw data.

*The SCTE-35 broadcast standard allow broadcasters to place real-time messages into their video stream with a wide range of essential signals for distributors, including when to insert local advertisements into programming, archiving/repurposing restrictions, and indexing information.

Closed Captioning / Subtitling Output Standards:

  • ATSC User Data : (USA broadcast) embedded CTA-708 captions in MPEG-2, AVC/H264, or HEVC video streams
  • SMPTE 2038 (RDD-11) : CTA-708 captions in VANC wrapper within a transport stream - for use with any video standard including JPEG2000 mezzanine streams 
  • DVB Subtitles : (EU/UK broadcast) ETSI EN 300 743 - broadcast carriage of graphically coded subtitles
  • DVB Teletext : (legacy/supplemental EU/UK broadcast) ETSI EN 300 472 - carriage of Teletext coded data in a configurable page for subtitling
  • DVB TTML : DVB standard carriage of EBU-TT / IMSC Timed Text segments in an MPEG Transport Stream
  • SMPTE 2110-40 : CTA-708 , OP-47 Teletext, and other ancillary data packets in SMPTE 2110, using PTP timing and NMOS IS-05 Connection Management