Televison and Film Video Quality Control Process

There are many aspects to performing a Quality Control Report for a television or film video process. In the current Hi-def, and coming Ultra Hi-def 4K environment many QC checks are done on digital video files as that is the method of delivery to networks and broadcast facilities as they are now tapeless environments; however a large majority of broadcast is still done on tape. The QC process whether it is tape for file is the same, with a few minor exceptions.

The first step is to obtain a spec sheet from the distributor or whoever the client is sending the project too, often different networks, stations or broadcast facilities will require different things from the film maker or production company. We go over the spec sheet and make sure that everything that is asked for is present on the tape, correct to the standards requested.

Examples of spec sheet demands will be correct head format: The correct bars, tones and slate are present in the right correct time code location. We make sure the bars are at the correct video levels, and the tones are at the correct audio levels, we also check to make sure that all the information on the slate is correct, complete, and matches the info on the tape and case labels.

At this point we will run a spec check to make sure that the luminance, chrominance, and gamut levels are correct and in spec throughout program, a check is also made to assure that all text in the show is within the title safe area. During this check a line count is also performed to determine the aspect ratio of the program and make sure that it is correct and within spec. Vertical and horizontal blanking are checked throughout program. After all specs are checked and logged a full viewing of the program is done, with one pass for each set of audio tracks, first pass is video and first set of audio tracks (ex. 2 channel stereo mix) additional passes are performed for each additional set of audio tracks (M&E, 5.1, Dolby E) A full report is filled out listing all specs and full list of issues by time code with a severity rating scale of 1-3. A rating of 1 is for minor & FYI issues, a 2 rating is minor to marginal and can be fixed by client if desired. 2+ rating puts the program on hold, this is an issue that should be fixed if possible. When the program is put on hold it is the clients decision whether to fix these issues are accept as is, usually the client will consult with their distributor or network for final approval.

A 3 rating makes the program rejected. This is an issue that must be fixed, and is not in compliance with spec sheets or industry standards. If a program is rejected or placed on hold we will provide suggestions for ways to fix the listed problems, and can often do the work for our clients if requested.

Some of the video problems we would be looking for include, bad edits, digital hits, compression artfiacts, freeze frames, which may or may not be caused by conversion errors. We are also looking for excessive noise, frame blending, shifts in luminance or chroma, and many other possible issues.

Some possible audio problems include, ticks, dropouts, mutes, static, pops, incorrect channel assignments, correct peak and average levels of dialogue and overall audio. Other things we look for are dialogue and effects sync, missing effects, extraneous effects or dialogue, and much more.

Please contact us if you have any additional questions about the QC Process





Call us for more info 1-323-316-8298
Email: laposthouse@gmail.com







Full Service Television Video Post Production & QC:
HDCAM SR, Quicktime, Digitizing, Conversions, Blu-Ray

Services Include:
  • 4K, 2K, HD, SD
  • Digitizing from Tape to Pro Res Files
  • HDCAM SR, HDCAM, Digibeta, IMX, NTSC/PAL
  • 100% Quality Control of Tape or File with Complete QC Reports
  • Post Production Consulting
  • Video & Audio Finishing Services
  • Up, Down, & Cross Conversions Clones or Dubs (Analog/Digital/NTSC/PAL)
  • Subtitle Encoding & Closed Captioning Files and Encoing
  • Editing & Color Correction w/ Final Cut Pro, Adobe Premiere, Avid & Pro Tools
  • Quicktime video output & mastering production to: HDCAM SR, HDCAM, DIGIBETA, IMX, BETA SP, DVCAM, DV
  • 5.1 Surround, Voice-Overs, Narration, Dialogue Replacement
  • Blu-Ray/DVD mastering, CD/DVD face printing
  • Digital Cinema Package (DCP) Encoding and Delivery
  • Reel compilations, screener versions, cutdowns, slates, pulled blacks