post-production
US /ˈpoʊst.prəˌdʌk.ʃən/
UK /ˈpoʊst.prəˌdʌk.ʃən/

1.
post-production
the stages of film, video, or audio production that occur after the actual shooting or recording has been completed, including editing, special effects, and sound mixing
:
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The film is currently in post-production, with editing expected to take several months.
Le film est actuellement en post-production, le montage devant prendre plusieurs mois.
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Effective post-production can significantly enhance the quality of a raw recording.
Une post-production efficace peut améliorer considérablement la qualité d'un enregistrement brut.