- High Quality Voice-Over Mixing
- Noiseless Paging
- A Single Input Adapted for Paging or Voice-Over
- Selectable Fade-Under or Hard-Cut
- Adjustable Fade Depth and Rate
- Soft Audio Switching
The ST-VP1 is part of a group of products in the Stick-On series from Radio Design Labs. The durable bottom adhesive permits quick, permanent mounting nearly anywhere, or use it with RDL's racking accessories. The ST-VP1 offers the ultimate in quality preset mixing functions for voice-over and paging applications, with a big plus, you can put it right where you need it! STICK-ONs are designed, built and rated for continuous duty in professional A/V systems.
FUNCTIONAL DESCRIPTION: The exceptional audio quality together with the reasonable cost of the ST-VP1 makes it equally useful in voice-over studio recording applications and in paging installations. The module is a line-level device with two inputs;
MUSIC and
VOICE. The
MUSIC input normally feeds the output when no control option is selected. Two control options are available;
FADE and
CUT. When
FADE is externally selected (
FADE terminal connected to ground), the
MUSIC source is faded down, and the
VOICE source is turned on. When the
FADE terminal is released, the voice source is turned off and the music source fades back up. The fade rate, and fade depth are both adjustable on multi-turn trimpots. When the
CUT terminal is selected (
CUT terminal connected to ground), the music source is switched off and the voice source is switched on. When the
CUT terminal is released, the voice source is switched off and the music source is restored. All switching and fading is accomplished electronically for noiseless operation.
PAGING APPLICATION: The ST-VP1 can be wired to constantly feed a line-level input of a paging amplifier. Line-level music and voice sources feed the module. The voice source may be a telephone paging signal at line level, or a microphone which has been preamplified up to line-level (See RDL STM-1, STM-2, STM-2X, STM-3 Microphone Preamplifiers). If the professional sound of music fading under the page is desired, the
FADE terminal is used to select the page function. If a hard-cut is desired to get people's attention for emergency pages, the
CUT terminal can be used. Innovative systems can be created by cascading modules for prioritized messages. A two-unit system would incorporate a ST-VP1 to operate the music fade for insertion of messages from a message repeater. The output of this module would feed a second ST-VP1 used in the cut paging. In this way, messages can be professionally mixed with background music, while attention-getting pages always take priority.