SMPTE ST 2052-0:2013

SMPTE ST 2052-1, Timed Text Format (SMPTE-TT), specifies a “core standard” and defines the Timed Text format. SMPTE-TT can be used in an end-to-end broadband infrastructure as a native format ” including authoring and rendering.

However, existing (legacy) captioning formats exist worldwide that have a large body of captions authored in and/or distributed in their individual syntax. To properly “translate” those existing caption syntax formats, individual “Format Translation” documents are created as SMPTE Recommended Practices. SMPTE RP 2052-10, Conversion of CEA-608 Data to SMPTE-TT, describes how the legacy CEA-608 syntax (including analog video waveform) can be mapped into the SMPTE-TT format and SMPTE RP 2052-11, Conversion of CEA-708 Data to SMPTE-TT, describes how the CEA-708 syntax can be mapped into the SMPTE-TT format.

Additional translation documents are envisioned for inclusion in the 2052 “family” of specifications