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Here is our specifications on True Peaks and Loudness for Music and Effects and Print Masters.

Please note, these threshold levels are for our QC Partner measurements only. There have been no changes to the Original Delivery Specification thresholds:

MUSIC & EFFECTS

  • True Peaks must not exceed -1db TP. 
  • Loudness: measurement and adherence not required.

PRINT MASTER 

  • True Peaks: must not exceed -1db TP
  • Loudness 
    • -27 LKFS (+/- 3 LKFS) average dialog-gated level using ITU-R BS.1770-1
    • -24 LKFS (+/- 3 LKFS) average level using ITU-R BS.1770-3

Here is our recommended procedure to measure and flag as issues:

  • Make sure you are using one of the meters prescribed below.
  • Measure received mix against 1770-1 Dialog gated Algorithm

  • If PASSED, do NOT flag in the report
. 
  • If FAILED, see the next step
.
  • If 1770-1 has failed, measure mix against 1770-3 Algorithm.
  • 
If PASSED, do NOT flag in report.
  • 
If FAILED, flag LKFS Measurement Out of Spec, include both the measurements for 1770-1 and 1770-3, and mark as an ISSUE.
  • If the discrepancy is confirmed, flag on the QC report as an ISSUE. 

PLUG-INS

ENTERPRISE SOLUTIONS

Dolby Media Meter

Dolby DPLM

NuGEN Vis-LM

Interra Systems Baton

Izotope Insight

Emotion Systems Eff

Signum Bute

NuGEN AMB 

Waves WLM

Minnetonka Audio AudioTools Server

Set up specifications for accurate measurement:

  • Measurement Algorithm - ITU-R bs.1770-2/1770-3 OR ITU-R bs.1770-1 
  • Short Term Window - 3 Seconds (Does not affect overall measurement)
  • Peak Measurement Type - True Peak
  • Warnings:
    • 1770-2/ 1770-3 
      • Target: -24
      • Tolerance: +3/-3
      • Infinite All
    • 1770-1 
      • Target: -27
      • Tolerance +3/-3
      • Infinite Dialog
    • True Peak Threshold: -2dBFS
  • Channel Configuration:
    • 5.1 - L,R,C,LFE,LS,RS
    • 2.0 - Lt/Rt

 

CHANGE LOG:

  • 03/14/2022 - Updated tolerance for both 1770-1 and 1770-2/3 standards to +3/-3 per guidance from Scott K. to account for slight variances in measurements across tools.
  • 03/12/2021 - Updated "Solutions" to "Enterprise Solutions" in approved measurement tool grid
  • 2/2/2021 - Updated True Peak threshold to -1 dB TP
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