When the director is satisfied with the cinematographer’s color grading work, the film goes into sound mixing, where the original recorded sound is added with various other sound styles to complement it.
Sound mixing, or editing, takes place when film editing is being finalized. This is when Foley artists come in to recreate sounds or actors come in to rerecord scenes. After removing any unwanted noise, the sound mixer adds background noise, voiceover, music, or sound effects. Then it goes to the sound designer who combines the music, dialogue, and Foley effects together to create audio tracks that go into the mix.
It can take up to three weeks to complete sound design. But usually, this doesn’t happen until the edit is done. “Everything funnels back to the editor, because the editor is going to hit the final export and send it,” says video editor Cody Liesinger. “It's up to that editor in post-production to explore the web that’s created and bring everything to the center — whether it’s motion design, retouching, sound mixing, color grading, or music.”