Audio Video Recording And Editing 4(1+3)

Lesson 05: Different Sound Equipments and Their Parts

Audio Faders

Faders are instruments, shown in Fig. 7.10, that are available on all cameras and recording instruments. Exclusive audio faders are available in the market. They enable the sound recordist to increase or decrease the level of audio being recorded on the recording medium. They function like volume controls on our TV sets. It is important to set the fader at the optimum level to ensure the best quality sound. For example, in video cameras, ensure that the recording level does not cross 12 dB on the recording level. Audio recorded consistently beyond 12 dB will have a 'crack' effect and sound very distorted. The indicator on the fader levels of an audio mixer has two sec­tions-the green and the red light emitting devices (LEDs). The series of green LEDs indicate whether the audio levels are well in control. When the audio levels consistently shoot beyond the green LEDs, the red LEDs light up. The red constants lighting up of LEDs indicates a problem with the audio.