Category Archives: Subtitling

Subtitles for 360° media – alternative presentation for immersive experiences

Introduction When subtitles are provided in a 360° environment, they are typically fixed at the bottom of the screen and centered horizontally. This is fine for common 2D TV, but maybe is not the best strategy for 360° media. By making use of the additional “dimension”, maybe subtitles can convey more than just textual information.

Read More

Subtitle Conversion Framework (SCF) v1.0 released

IRT recently released version 1.0 of it’s Subtitle Conversion Framework (SCF). The SCF is published under the Apache 2.0 license and is available on github: https://github.com/IRT-Open-Source/scf The SCF provides a set of modules for converting XML based subtitle formats. The modules include features for Transformation from EBU STL to EBU-TT according to the mapping guideline

Read More

CMAF Livestreams with Subtitles and Audio Description

The Common Media Application Format (CMAF) aims at unifying the two currently leading adaptive streaming standards: MPEG-DASH and Apple’s HLS. The sample live streams presented here, demonstrate the potential benefit of CMAF for future OTT IP services. With CMAF, both HLS playlists and DASH manifests are allowed to reference the same fragmented MP4 (fMP4) chunks,

Read More