Deliverable Requirements v1.9
The Dolby Atmos Home Mix must meet the following requirements.
- At a minimum, must be mixed in a 7.1.4 room
- This is a nearfield mix. The most common monitoring levels for nearfield are 79db or 82db.
- Must conform to Netflix loudness spec (-27db LKFS +/- 2 LU 1770-1 dialog-gated).
- Peaks must not exceed -2dbfs True Peak. To achieve this, we recommend setting True Peak limiters on all beds and objects at -2.3 or lower. Loudness and peaks may be measured via a 5.1 rerender.
- For native Atmos mixes, make sure the 5.1 and 2.0 rerenders are approved as well. Please see Netflix Originals Delivery Specifications - Version OC-3-1 or Netflix Audio Mix Specifications and Best Practices - Version OC-1-0
- All beds and objects are encoded and will always be audible. A printmaster may utilize a composite of all bed material OR multiple beds, but not both.
- If a 85 db reference theatrical mix is created, two complete sets of deliverables are required. One for theatrical, one for nearfield.
- All deliverables shall be conformed and synced to final IMF picture as long-play and not separate reels. Leader and sync pop shall be removed. File must start at FFOA.
For Distribution
- Final Home Theater Print Master
- Dolby Atmos BWAV ADM File
- Single or multiple LCR, 5.0, 5.1, 7.1 or 7.1.2 bed(s)
- Tracks 11-128 may be used for Objects or beds
- 48 kHz, 24 bit
- Mix Minus Narration (when applicable)
- Dolby Atmos BWAV ADM File
- Single or multiple LCR, 5.0, 5.1, 7.1 or 7.1.2 bed(s)
- Tracks 11-128 may be used for Objects or beds
- 48 kHz, 24 bit
For Localization
- Music & Effects mix
- Dolby Atmos BWAV ADM
- Single or multiple LCR, 5.0, 5.1, 7.1 or 7.1.2 bed(s)
- Tracks 11-128 may be used for Objects or beds
- M&E Options stems as separate WAV file(s)
- Channel mapping must match the bed(s) of the M&E mix
- 48 kHz, 24 bit
- Dialogue, Music, Effects, Narration stems (not necessary if PM uses DME beds rather than composite)
- Dolby Atmos BWAV ADM File
- Must include minimum three beds
- Tracks 11-128 may be used for Objects or beds
- 48 kHz, 24 bit
For Archive
- All deliverables should be conformed and synced to the final picture as long-play
- Final Home Theater Printmaster DAMF (Dolby Atmos Master File)
- Components of DAMF are:
- .atmos file
- .audio file
- .metadata file
- Tracks should be grouped / associated to Dialogue, Music and Effects stems
- Single or multiple LCR, 5.0, 5.1, 7.1 or 7.1.2 bed(s)
- M&E DAMF (Dolby Atmos Master File) (when applicable)
- Components of DAMF are:
- .atmos file
- .audio file
- .metadata file
- Tracks should be grouped / associated to Dialogue, Music and Effects stems
- Single or multiple LCR, 5.0, 5.1, 7.1 or 7.1.2 bed(s)
- Mix Minus Narration DAMF (Dolby Atmos Master File) (when applicable)
- Components of DAMF are:
- .atmos file
- .audio file
- .metadata file
- Tracks should be grouped / associated to Dialogue, Music and Effects stems
- Single or multiple LCR, 5.0, 5.1, 7.1 or 7.1.2 bed(s)
- Pro Tools Atmos full mix session (if requested)
- Theatrical Dolby Atmos MXF used for DCP
Change Log History
Change Log v1.9
Changes from v1.8
- General
- Clarified that Tracks 11-128 may be used for beds or objects
- Recommended measurement via 5.1 rerender rather than 7.1
- Removed channel layouts as assignments are determined by renderer
- Changed loudness spec to 1770-1 dialog gated -27 LKFS
- Advised use of True Peak limiters set to -2.3
- Allowance for LCR and 5.0 beds added
- Removed requirement to edit metadata to 00:00 start
- Removed Pro Tools Atmos recorder file requirement
Change Log v1.8
Changes from v1.7
- Loudness & Peak Requirements
- Specified Atmos as a Nearfield deliverable that must meet average loudness and peak audio requirements.
- Theatrical mix deliverables
- Added language that two full sets of deliverables are required for Theatrical Atmos mixes