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Commercial Spot Requirements

Solution KATU Commercial Spot Requirements

(Updated 12/22/2021)

Submitted material should be high definition (HD) video (1280x720p preferred) and contain audio compliant with the -24 LKFS reference audio standard.

Furthermore, in compliance with the Code of Federal Regulations, Title 47 (Telecommunication), Part 79, specifically “§79.1, Closed captioning of video programming,” all long-form commercial content (i.e. “paid programming”) needs to have closed-captioning. This may be either embedded captions or by including a Scenarist Closed Caption (.scc) file when using the Mediashuttle Portal to delivery the media (see below).

Failure to comply with these standards may result in the delay and/or the rejection of the commercial material.

For best results, we recommend that all commercial material be provided in the following industry-standard file container formats: .mov, .mpg, .mp4, or .mxf (OP-1a). Other formats may be accepted but might require additional processing time or costs to accommodate.

Delivery may be accomplished by an electronic delivery service, or by using the Mediashuttle portal by going to the following link:


Regarding Caption Sidecar files: If supplying both a media file and a .SCC file, you MUST provide the .SCC file first, then provide the media file. If you do not supply the SCC file first, it will not be processed. MCC files are NOT recommended.

The Mediashuttle portal is a Signiant product and does NOT require a login. You only need to provide the file(s) you want to upload and your Email address.

Tips for Success

Embedded Closed Captions

As noted above, the FCC requires that long-form programming (longer than ten minutes) must contain closed captioning. In general, that means that for “embedded” captions, in the editing process you create the captions within the same file as the audio and video essence items.

Due to the variety of editing systems and encoding formats, it is up to the provider to determine how to use their tools to accomplish this. Nevertheless, here are some tips to help test the results before you submit your material:

1. Check your files with MediaInfo, a free and open source application that can be downloaded from .

The text streams should show “EIA-608 (A/53 /DTVCC Transport)” and “EIA-708 (A/53 /DTVCC Transport)”. The “DTVCC Transport” is the important item that you’re looking for, not “Ancillary Data” or for the text streams to be missing.

If these are correct, your file contains the “essence” containers required, although it doesn’t necessarily mean that there is any captioning text present. That leads to the next suggested test:

2. Play your files using VLC, a free open source video player available at . While playing the file, you can use the Subtitle -> Subtrack menu to turn on captions for playback. This will allow you to see captions in your playout video:

Note: If you are submitting material for the first time, we strongly recommend that you submit a small test file before sending in your entire long-form material. It can take a long time to download and process large files, and it is quicker to test a small file and provide feedback, especially if there is a deadline looming.

Note: Attached to this article is a downloadable copy of these instructions with illustrations, as well as instructions for feeding via the Mediashuttle portal.

Commercial_Spot_Requirements.pdf Commercial_Spot_Requirements.pdf
SCMP_Standards_and_Recommended_Practice_v1.5.pdf SCMP_Standards_and_Recommended_Practice_v1.5.pdf

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Article details
Article ID: 79
Category: Commercial Spots
Date added: 2021-02-09 16:52:02
Views: 156
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