ADR - Automated Dialogue Replacement

Additional Dialogue Replacement (ADR) is the process of re-recording audio in a quieter, more controlled setting.  Often times, due to environmental issues such as nearby railroad noise, or flubbed up lines  require re-recording of actor dialogue.  ADR is usually done in a digital recording studio—even if  the production is shot on film. The modern recording setup allows the  engineer and talent to capture usable audio.

Although ADR seems like a magic wand for your production woes, it is  not easy. For one thing having actors repeat their performances can  yield tepid results. Especially if the actors don’t have anyone from the  cast to contextualize their responses. 

Arch Audio has provided such services for production companies such as Tyler Perry Studios.