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Critical Mix Reviews - Audio

The below asset delivery specs are intended for Critical Mix Reviews in technical review rooms at internal Netflix facilities. A Critical Mix Review occurs in a calibrated reference environment and may be used to provide in-progress notes back to the mix team as well as  final mix approval. 

For any questions regarding asset delivery for screenings and reviews at internal Netflix facilities, please contact Post Services Operations - Screenings.

 

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 Critical Mix Review Info
 

RECOMMENDED DELIVERY OPTIONS:

-BWAV ADM + separate Video guide (recommended for Atmos review)

-Pro tools session + separate Video guide

-Pro tools session with Video guide included inside of session shipment

-5.1 stems + separate Video Guide (if specifically requesting a 5.1 review)

*Please note we are currently running Pro Tools v2024.10*

*Content Hub deliveries may be discreet audio files alone, within folders or within Pro Tools session folders also containing sessions. If a video guide is needing to be added outside of a pro tools session, stem shipment or BWAV ADM folder location, a note on which video guide to pull from Content Hub for proper sync will be needed from you.

 

SAMPLE RATE: 48khz

FRAME RATE: All audio should match the frame rate of the picture file in the session.

SUPPORTED CODECS: For Pro Tools Playback:
QuickTime (MOV/MP4/M4V Import/Playback)
DNxHR
DNxHD
Apple ProRes 422 (including HQ, LT, Proxy)
H.264 (c,e) (CFR only)

TECH SPECS: Specific Tech specs for Atmos mix reviews found here.

FILE NAMING: Files should be named so we know what frame rate, sample rate, version # it is

  • EXAMPLE:

    “chefs_table_s02e02_v03_FXSTEM_6ch_48k_24b_23976”

    If delivering stems, stems should be labelled what they are (FX, MX, DX, etc)

STEM DELIVERY:

Audio Stems that do not arrive inside of a pro tools session, should line up at the TC start time matching that of the head of the video file for correct sync playback.
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 Content Hub, PIX File Format Audio Specs
  (Locked Cuts)

 

MP4 or MOV

CODEC: AAC-LC

SAMPLE RATE: 48khz

CHANNEL INFO: Single Audio Track with one of the following channel layouts

  • Interleaved Stereo: L, R
  • Interleaved Matrixed Stereo: LT, RT
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 Content Hub Editorial Cut Turnovers

 (for reviews and notes)
  H264 (audio specs)
 

OPTION 1: MP4 or MOV

CODEC: HE-AACv1, HE-AACv2 or AAC-LC

SAMPLE RATE: 48khz

CHANNEL INFO: Single Audio Track with one of the following channel layouts:

  • Interleaved Stereo: L, R
  • Interleaved Matrixed Stereo: LT, RT
  • Interleaved 5.1: C, L, R, Ls, Rs, LFE

OPTION 2: MOV ONLY

CODEC: PCM

SAMPLE RATE: 48khz

CHANNEL INFO: Audio channels must be properly tagged within the MOV container

Single Track

  • Stereo: L, R
  • Stereo (Matrixed): L, R
  • Interleaved 5.1 + Stereo (Matrixed) : L, R, C, LFE, LS, RS, LT, RT

2-Track

  • Discrete Stereo: L / R
  • Discrete Stereo (Matrixed): LT / RT
  • Interleaved 5.1 + Stereo Matrix 
  • Interleaved: L, R, C, LFE, LS, RS / LT, RT

3-Track

  • Discrete Stereo (Matrixed) + Interleaved 5.1 :  L, R, C, LFE, LS, RS / LT / RT

8-Track

  • Discrete 5.1 + Discrete Stereo (Matrixed): L / R / C / LFE / LS / RS / LT / RT
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ProRes 422 (HQ) MOV
 

CODEC: PCM

SAMPLE RATE: 48khz

CHANNEL INFO: Audio channels must be properly tagged within the MOV container

Single Track

  • Stereo: L, R
  • Stereo (Matrixed): L, R
  • Interleaved 5.1 + Stereo (Matrixed) : L, R, C, LFE, LS, RS, LT, RT

2-Track

  • Discrete Stereo: L / R
  • Discrete Stereo (Matrixed): LT / RT
  • Interleaved 5.1 + Stereo Matrix Interleaved: L, R, C, LFE, LS, RS / LT, RT

3-Track

  • Discrete Stereo (Matrixed) + Interleaved 5.1 :  L, R, C, LFE, LS, RS / LT / RT

7-Track

  • Discrete 5.1 + Interleaved Stereo (Matrixed): L / R / C / LFE / LS / RS / LT, RT

8-Track

  • Discrete 5.1 + Discrete Stereo (Matrixed): L / R / C / LFE / LS / RS / LT / RT
   
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DNxHD (MOV)
 

CODEC: PCM

SAMPLE RATE: 48kHz

CHANNEL INFO: Audio channels must be properly tagged within the MOV container

Single Track

  • Stereo: L, R
  • Stereo (Matrixed): L, R
  • Interleaved 5.1 + Stereo (Matrixed) : L, R, C, LFE, LS, RS, LT, RT

2-Track

  • Discrete Stereo: L / R
  • Discrete Stereo (Matrixed): LT / RT
  • Interleaved 5.1 + Stereo Matrix Interleaved: L, R, C, LFE, LS, RS / LT, RT

3-Track

  • Discrete Stereo (Matrixed) + Interleaved 5.1 :  L, R, C, LFE, LS, RS / LT / RT

7-Track

  • Discrete 5.1 + Interleaved Stereo (Matrixed): L / R / C / LFE / LS / RS / LT, RT

8-Track

  • Discrete 5.1 + Discrete Stereo (Matrixed): L / R / C / LFE / LS / RS / LT / RT 
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