- MUSIC Level
- VOICE Level
- MUSIC Fade Depth: 0 to -25 dB, or OFF
- MUSIC Recovery Delay: 2 to 4 seconds
Automatic Audio Ducking
In audio, a Ducker is a device used for lowering the level of one audio source based on the presence of another audio source. Often used in paging systems to lower the level of background music during a page, duckers are also used for voiceovers in radio, television and film production. The RDL ST-VP2 Automatic Ducking Module is a two input device that normally passes program connected to the MUSIC input. When audio is sensed at the VOICE input the MUSIC input is immediately compressed and attenuated to a predetermined level. This attenuation is maintained as long as signal is present at the VOICE input. When VOICE signal is no longer present, the MUSIC source is automatically restored to its’ normal level and the VOICE input is completely turned off. The MUSIC input of the ST-VP2 is equipped with an AGC/Compressor circuit to produce consistent audio levels despite varying input levels. During voice-over operation, sudden, loud music passages are controlled to prevent veiling of the voice message. Four separate adjustments are available on the ST-VP2: