Truetime®: An Alternative Approach to the Marriage of Film and Video

Metadata

Publisher: SMPTE — White Plains, NY
Doc Type: Conference Paper
Content Type: Original Research
Volume: 1997, No. 5, pp. 42–55
Abstract: Production values for a video derived from a 24Fps film master differ between 50fps and 59.94fps derivations. Normally, the 50fps derivation is speeded up by 4%, producing timing discrepancies for the video content and pitch problems for the audio. The 59.94 derivation contains the motion artifacts associated with the 3:2 pull down process. This paper explains that if the film material is shot at 25 rather than 24 Fps and a modified pulldown sequence is used, the timing discrepancies and pitch problems are removed from the 50fps derivation and the motion artifacts associated with the pulldown process are reduced in the 59.94 derivation.
Publication Date: 1997-03-01
DOI: 10.5594/M00569
Link: https://doi.org/10.5594/M00569
Author(s): Luke FreemanSony Electronics, Inc., San Jose, Calif.
Copyright: © 1997 Society of Motion Picture and Television Engineers, Inc.

Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-M00569.json

Reference this Doc

Plain text (ISO 690 compliant)

Preview:

Luke Freeman; Truetime®: An Alternative Approach to the Marriage of Film and Video, SMPTE Meetings and Conferences ( March 1997); SMPTE, 1997. Available at https://doi.org/10.5594/M00569

Snippet:

Luke Freeman; Truetime®: An Alternative Approach to the Marriage of Film and Video, SMPTE Meetings and Conferences ( March 1997); SMPTE, 1997. Available at https://doi.org/10.5594/M00569

HTML (ISO 690 compliant)

Preview:

Luke Freeman; Truetime®: An Alternative Approach to the Marriage of Film and Video, SMPTE Meetings and Conferences ( March 1997); SMPTE, 1997. Available at https://doi.org/10.5594/M00569

Snippet:

<span class="citation">Luke Freeman; <cite>Truetime®: An Alternative Approach to the Marriage of Film and Video</cite>, SMPTE Meetings and Conferences ( March 1997); SMPTE, 1997. Available at <a href="https://doi.org/10.5594/M00569" target="_blank" rel="noopener">https://doi.org/10.5594/M00569</a></span>

SMPTE's HTML Pub

Preview:

Luke Freeman; Truetime®: An Alternative Approach to the Marriage of Film and Video, SMPTE Meetings and Conferences ( March 1997); SMPTE, 1997
doi: 10.5594/M00569
url: https://doi.org/10.5594/M00569

Snippet:

<li>
Luke Freeman; <cite id="bib-10-5594-m00569">Truetime®: An Alternative Approach to the Marriage of Film and Video</cite>, SMPTE Meetings and Conferences ( March 1997); SMPTE, 1997
<span class="doi">10.5594/M00569</span>
</li>