Dolby Atmos File Technical Requirements

Apple Dolby Atmos Technical Specs

• ADM BWF (.wav) file.
• All audio tracks must be 24-bit LPCM audio at 48kHz.
• A Dolby Atmos track must be created from multitracks or stems created from multitracks.
• Upmixing from a stereo release is not allowed.
• Extracting stems (“de-mixing”) from a stereo release is not allowed.
• A Dolby Atmos track consisting only of a stereo mix placed in the sound field with added ambience or reverb is not allowed.
• You must conform and sync the Dolby Atmos files with the stereo reference files for the same project.

TIDAL Dolby Atmos Technical Specs

• ADM BWAV (.wav)
• Minimum required sample rate of 48 kHz and a bit depth of 24 bits
• The file must be created with a 24fps timecode and provided as an ADM BWAV file.
• No additional silence at the start of the deliverable when compared to the corresponding stereo deliverable.
• The file end should be 0ms from the end of the track including any fade out.
• 48kHz BWAV ADM Binaural Render Mode should be set for all channels
• All deliverables should be conformed and synced to the original stereo reference master.
• Loudness Target: -18LKFS based on ITU-R BS. 1770-4 recommendations. Peaks should not exceed True Peak: -1dBTP
• Binaural metadata is present in all ADM output and should be checked before Master

  creation to ensure correctness.