Overdubbing is a technique used in music and audio production where additional sounds or vocals are recorded over an existing track. This allows artists to enhance their recordings by adding harmonies, background vocals, or instrumental layers without needing to re-record the entire piece. For example, a singer might record their voice separately to create richer soundscapes in a song. In film and television, overdubbing can also refer to the process of replacing or adding dialogue after the original recording. This is often done to improve audio quality or to translate a film into different languages. Voice actors may be used to ensure that the new dialogue matches the original performance.