SMPTE ST 2052-1定时文本格式（SMPTE-TT）规定了“核心标准”，并定义了定时文本格式。SMPTE-TT可以在端到端宽带基础设施中作为“本机格式”使用，包括创作和呈现。但是，世界各地都存在现有（传统）字幕格式，其中有大量字幕是以各自的语法编写和/或分发的。要正确“翻译”这些现有字幕语法格式，请选择“单独”格式翻译“文件是按照SMPTE推荐做法创建的。SMPTE RP 2052-10，CEA-608数据到SMPTE-TT的转换，描述了如何将传统CEA-608语法（包括模拟视频波形）映射到SMPTE-TT格式和SMPTE RP 2052- 11，CEA-708数据到SMPTE-TT的转换，描述了如何将CEA-708语法映射到SMPTE-TT格式。预计将在2052“系列”规范中包含其他翻译文件

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