Source Separation

Dolby Atmos music creation is best achieved using original stems or full session multi-tracks, which provide the highest fidelity and creative flexibility for immersive audio production. When original sources are unavailable, source separation tools may be considered. However, it is essential to thoroughly evaluate the quality of the separated stems before proceeding, as these methods can introduce artifacts that compromise the integrity of the Dolby Atmos experience and negatively impact the listener. Always consult the relevant label and/or Digital Service Provider (DSP) delivery specifications to determine whether source-separated content is acceptable for submission.

 

Upmixing 

“Upmixing” from a stereo master alone does not constitute a Dolby Atmos mix. This includes scenarios such as: Embedding a stereo (2-channel) mix into a Dolby Atmos container with only two active output channels; Routing or processing a stereo mix such that the same full-program material is present in every output channel; Creating a mix where substantially identical content is heard across all channels. These approaches do not meet the creative or technical standards of a true immersive Dolby Atmos experience.

 

Acceptable Dolby Atmos Mixing Practices

To ensure a mix qualifies as Dolby Atmos, the following practices are encouraged:

• Using Original Multi-tracks or Stems: Start with full session multi-tracks or original stems to build a spatially dynamic mix with intentional placement of musical elements across the immersive sound field.
• Creative Spatial Design: Position vocals, instruments, and effects in distinct locations (e.g., overheads, surrounds) to enhance listener immersion and movement within the mix.
• Dynamic Use of Object-Based Audio: Utilize Dolby Atmos objects to isolate and animate key elements (e.g., lead vocals, percussion hits, ambient textures) independently from the bed channels.
• Mix Integrity Across Playback Systems: Ensure the mix translates well across Dolby Atmos-enabled devices, including headphones, soundbars, and home theater systems, without collapsing into stereo.

 

To learn more about Dolby Atmos, see our article Getting Started with Dolby Atmos Music, or explore the self-guided online training at learning.dolby.com.