The Society of Motion Picture and Television Engineers or SMPTE (pronounced "simptee" or sometimes "sumptee") is a US professional association of engineers. They describe standards for media, publish a journal, find jobs for members and etc.
Significant standards for which they hold the copyright include:
All film and television transmission formats and media, including digital.
SMPTE timecode is a set of cooperating standards to label individual frames of video or film with a timecode defined by the Society of Motion Picture and Television Engineers in the SMPTE 12M specification.
In general, SMPTE timecode frame rate information is implicit, known from the rate of arrival of the timecode from the medium, or other metadata encoded in the medium.
SMPTE timecodes are often time code not specified by SMPTE.
The Society of Motion Picture and Television Engineers or SMPTE, (IPA pronunciation: [sɪmpti] and sometimes [sʌmpti]), founded in 1916 as the Society of Motion Picture Engineers or SMPE, is an international professional association, based in the United States of America, of engineers working in the motion imaging industries.
SMPTE standards documents are copyrighted and may be purchased from the SMPTE website, or other distributors of technical standards.
SMPTE's educational and professional development activities include technical presentations at regular meetings of its local Sections, annual and biennial conferences in the US and Australia and the SMPTE Journal.