Duoplay setting

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With duoplay dubbing of Super8 narrow films, both sound tracks (the main sound track and the compensating sound track) are recorded separately. For example, music or the original sound can be played on the main soundtrack . B. recorded with an external tape recorder on.

In the second pass, there is a spoken comment on the compensation track. If the Super8 film projector supports the duoplay technology, you can determine at the push of a button that the volume of one track is always reduced when the film is played back if something can be heard on the other track. The meaning of this is that z. For example, the music in a scene in which no commentary is spoken is played at full level and is always "turned down" exactly and automatically whenever the speaker commenting on the film lets something out of him.

The term "Duoplay" was born in the 80s and is associated with the projectors from the manufacturer "BAUER".

The basic principle of this technique can also be found in other areas; In the DJ and PublicAdress (PA) world it can be found on mixing consoles in the form of the "talk-over" switch, in professional sound engineering in words such as "VoiceOverCompression" and "VoiceOverDucking".