What’s Wrong With This Picture? (and sound) Common Problems with Program Masters Tim Mangini - FRONTLINE Jim Kutzner - PBS QG WGBH Public Television Quality Workshop.
Download ReportTranscript What’s Wrong With This Picture? (and sound) Common Problems with Program Masters Tim Mangini - FRONTLINE Jim Kutzner - PBS QG WGBH Public Television Quality Workshop.
What’s Wrong With This Picture? (and sound) Common Problems with Program Masters Tim Mangini - FRONTLINE Jim Kutzner - PBS QG WGBH Public Television Quality Workshop 1 Perception Tech Eval as Fundraiser Focused on minutiae They’re out to get me I don’t have time or money for this QG WGBH Public Television Quality Workshop 2 Reality Same goals - Optimum viewer experience Collaborative not Punitive Good investment of resources QG WGBH Public Television Quality Workshop 3 PBS Most Busted: Macro-Blocking/Pixilation Gamut Aspect Ratio Drop Frame Time-Code Audio Phase Synthesized/Fake Stereo Loudness Audio Dropouts/Hits Adjacent Audio Track Sync Lip Sync QG WGBH Public Television Quality Workshop 4 Macro-Blocking & Pixelation QG WGBH Public Television Quality Workshop 5 Gamut QG Uncorrected image WGBH Public Television Quality Workshop 6 Gamut QG Hard limited image Color corrected image WGBH Public Television Quality Workshop 7 Aspect Ratio QG WGBH Public Television Quality Workshop 8 Aspect Ratio QG WGBH Public Television Quality Workshop 9 Non-Drop Frame Time-Code NDF program is 3;12 too long You or PBS will need to make a cut Always Master in Drop Frame Doesn’t matter whether you shoot on DF or NDF QG WGBH Public Television Quality Workshop 10 Audio Phase QG Normal Stereo Phase WGBH Public Television Quality Workshop 11 Audio Phase QG 180° Out of Phase WGBH Public Television Quality Workshop 12 Synthesized/Fake Stereo QG 6 ms left/right offset WGBH Public Television Quality Workshop 13 Synthesized/Fake Stereo QG Synth Stereo Folded to Mono WGBH Public Television Quality Workshop 14 Loudness/Dial Norm QG Audio starts low WGBH Public Television Quality Workshop 15 Loudness/Dial Norm QG Audio gets progressively louder to meet spec WGBH Public Television Quality Workshop 16 Loudness/Adjacent Containers QG Program clip meets Dial-Norm spec WGBH Public Television Quality Workshop 17 Loudness/Adjacent Containers QG Adjacent promo is too loud WGBH Public Television Quality Workshop 18 Audio Dropouts and Hits Momentary dropouts can easily be missed without good monitoring Clicks and pops can be caused by word clock errors or cut points on NLE’s QG WGBH Public Television Quality Workshop 19 Adjacent Audio Track Sync DVS/SAP/Mono tracks 5.1 should have only Narration and dialogue in the center channel QG WGBH Public Television Quality Workshop 20 Lip Sync 2 Frames variance is tolerable Broadcast distribution chain may induce sync errors (MPEG2) QG WGBH Public Television Quality Workshop 21 Sync Drift Ingest via Firewire unreliable Use RS422 Longer clips susceptible Break up on ingest if possible Some cameras are culprits Incompatibility with mix Add head and tail pops before splitting sequence QG WGBH Public Television Quality Workshop 22 Loudness management -10 -15 -20 -25 -30 -35 Loudness (with speech) (without Long-Term Long-Term Loudness Loudness (with speech) Loudness speech) Loudness Long-Term Loudness Program has -21.4 LKFS Long-term Loudness QG WGBH Public Television Quality Workshop 23 Loudness management -10 -15 -20 -25 -30 -35 Loudness (with speech) Loudness (without speech) Long-Term Loudness Segment has -18.8 LKFS Long-term Loudness QG WGBH Public Television Quality Workshop 24 Sync Tool www.syncheck.com QG WGBH Public Television Quality Workshop 25 Analysis tools Tektronix WVR series www.tek.com QG Videotek VTM series www.broadcast.harris.com WGBH Public Television Quality Workshop 26 Audio analysis tools QG WGBH Public Television Quality Workshop 27 Audio analysis tools Dolby LM100 QG www.dolby.com WGBH Public Television Quality Workshop 28 Audio analysis tools WWW.QUALISAUDIO.COM QG WGBH Public Television Quality Workshop 29 Takeaways Plan $$$ and time for tech eval Tools - tailor your plant to be able to meet spec Know the specs yourself Don’t just put it through a legalizer Our responsibility to get it right Pay me now or pay me later Keep your project alive QG WGBH Public Television Quality Workshop 30 Discussion [email protected] pbsconnect.org/qualitygroup QG WGBH Public Television Quality Workshop 31