Sound effects refers to the speech and sound effects all that we want to occur at the same time with the picture of the words, such as advertising, music. Special sound effects (Sound effect), this might be a regulatory period.
Voice refers to the speech and sound effects that we want to come up with an image, such as speech, music, sound, special advertising (Sound effect) may be the time. To give each scene appears on the screen long.
Sound, mean, words and sound that we want to have happen. With กับภาพ such as words of advertising music Special sound effects (Sound effect) may have regulatory period.