Dubbing is the post-production process of recording and replacing voices on a motion picture or television soundtrack subsequent to the original shooting schedule. The term most commonly refers to the substitution of the voices of the actors shown on the screen by those of different performers, who may be speaking a different language. The procedure was sometimes practised in musicals when the actor had an unsatisfactory singing voice, and remains in use to enable the screening of audio-visual material to a mass audience in countries where viewers do not speak the same language as the original performers. "Dubbing" also describes the process of an actor's re-recording lines spoken during filming and which must be replaced to improve audio quality or reflect dialog changes. This process is called additional dialogue recording, or ADR for short. Music is also dubbed onto a film after editing is completed.
A photo slideshow is a collection of images to be displayed, usually in public. Early slideshows were often presented using a slide projector, where the original film is mounted on slides and simply projected as they are. However technological advancements have allowed for photo slideshows to be created on computers, using photo slideshow software. That has made it a lot easier to create photo slideshows, as there is no need to use expensive color reversal film, all you need is a digital camera.Photo slideshow software often have a lot more features than simply showing the pictures. Except photos it is also possible to add transitions, pan and zoom effects, video clips, background music, narrations, captions, etc. By using computer software one therefore has the ability to enhance pictures in a way that isn't otherwise possible. The finished slideshow can then be burned to a DVD, for example as a gift or for preservation, and later viewed using a DVD player.
