60 Applications for Background and foreground music
10 Items Per Page
Distribute Three Audio Sources to Multiple Locations Over UTP Cable
AN-2220
Description
Three styles of music are distributed to various rooms in this facility over CAT 5 cable by an RU‑TPS4A Format‑A Active Sender / Distributor. A D Series‑TPRX3A Source Selector and D Series‑PA3 Audio Amplifier installed in each room allow the occupants to listen to any of the three types of music provided or to listen to their own program material simply by plugging their MP3 player into the front‑panel input on the D‑PA3 amplifier. The front‑panel local input overrides the distributed audio.
Conserve Energy and Provide Unattended Operation
AN-2107
Description
The RDL FP‑ECC1 Energy Conservation Controller automatically powers up the electronics for this restaurant when needed and powers down the equipment when the restaurant is vacant to conserve energy and reduce operating costs. Motion sensors in the restaurant public areas trigger the FP‑ECC1 to switch on the system equipment power outlets. Continued activity in the seating areas will retrigger the FP‑ECC1 to keep the system turned on. After a switch‑selectable time period of 15, 30, or 60 minutes with no activity, the FP‑ECC1 will turn off the system electronics. No operator intervention is needed to turn the system on or off. An STM‑2 Microphone Preamplifier amplifies the reception desk paging microphone to line level. The associated push‑to‑talk switch causes the ST‑VP1 Voice‑Over/Paging Module to insert paging mic announcements through the house system. The D‑ECR1L Power On/Off Remote Control allows the system to be manually turned on and/or off. It also provides a system master level control to adjust the volume of the RU‑PA40D 40 Watt Stereo Power Amplifier.
Real-Time Metering Confirms Loudspeaker Circuit Continuity
AN-2168
Description
The RU‑SM16A Dual Audio Meter is installed to provide a visual indication of the amplifier output level as well as a verification of the speaker circuit’s continuity. One meter string is driven directly by the amplifier output while the second is fed by a return cable connected to the last speaker in the circuit. During proper system operation, both meter displays are identical. Any fault in the system causes the level to drop on the meter connected to the end of the constant voltage speaker circuit. The RU‑SM16A Dual Audio Meter and RU‑SM16D Quad Audio Meter provide precision audio level metering of line‑level audio as well as constant voltage or low‑impedance loudspeaker circuits.
Retail Store
AN-2093
Description
The background music (BGM) audio for the retail store is connected to an ST‑VCA3 Voltage Controlled Amplifier that is controlled by an DS‑RLC3 Remote Level Control. The DS‑RLC3 features 4 preset levels, set by the installer, providing the retail staff with 4 different volume choices to accommodate varying ambient audio levels. The DS‑RLC3 is mounted in a single gang box with an RDL CP‑1S Stainless Steel Cover Plate. The audio from the ST‑VCA3 is routed to the FP‑PA35A Power Amplifier with Power Supply which powers the overhead speakers in the store. The FP‑PA35A features an integral audio compressor that controls clipping.
Employee-Selectable Private (Headphone) or Public (Speaker) Monitoring of Two Office Sources
AN-2170
Description
Each office is equipped with two active stereo audio inputs that may be listened to via the overhead loudspeaker or through headphones. The local computer is connected to one input. The other input is available for a user‑supplied playback device, such as a Personal Media Player used for dictation, recorded meeting playback or music. Software alerts enabled on the computer will be heard along with the Personal Media Player playback because both audio inputs are active at all times. Confidential playback content remains private by turning off the overhead speaker and using the headphones powered by the DS‑HA1A Stereo Headphone Amplifier. Computer or Personal Media Player audio suited or intended to be heard in the whole office may be amplified to an appropriate listening level by the DS‑TPA1A 3.5 W Audio Power Amplifier.
RCX-5C System Allows Flexible Use Of Facility
AN-2001
Description
An RCX Room Combining System allows independent audio systems in up to five separate zones to be combined as one single system or to be combined with one or more adjacent zones. The funeral home in this example has a public space that may be divided by partitions into two or three separate areas. Each of these three zones is equipped with an RCX‑2 Room Control to select between local audio sources or background music, and to adjust speaker volume in the zone. Local mic and/or line‑level audio sources connect through the RCX‑J3 Audio Input Plate. When partitions are opened, the RCX‑5C Controller is used to combine the audio inputs and controls to feed all the speakers in the combined area. The FP‑PA20A 20 Watt RMS Audio Power Amplifier drives 70 Volt speakers in each zone.
Studio Quality Volume Adjustment for Professional and Consumer Applications
AN-2158
Description
The RU‑VCA2A Two Channel Digitally Controlled Attenuator and RLC10K Remote Level Control are used to increase and decrease the level of the Stereo Sound source feeding the amplifiers. The RU‑VCA2A offers clickless level adjustment, accurate tracking and outstanding wide‑band, low‑noise studio quality performance. It can be controlled remotely by a variety of RDL or third‑party controls and/or locally via front‑panel pushbuttons. Each audio input and output may be configured balanced or unbalanced. Multiple RU‑VCA2As and/or RU‑VCA6As may be linked together for single‑point level control of 7.1, 10.2 or 22.2 surround sound systems.
Pole Mounted Power Amp Operation in Extreme Temperatures
AN-2125
Description
This outdoor parking area is equipped with speakers mounted in the lamp structures to provide music and paging coverage. Speakers in each pole are powered by an RDL FP‑PA18H 18 Watt Hi‑Temp Audio Amplifier. The amplifier module is mounted in an unventilated watertight enclosure at the base of each pole. The poles recieve direct sunlight causing the potential for high internal ambient air temperatures. The highly efficient FP‑PA18H is ideally suited to this environment. It is designed for operation in ambient temperatures up to 70 degrees Celsius (about 158 degrees Fahrenheit) and contributes negligible heat to the ambient temperature inside the pole. The amplifier’s integral compressor/limiter insures maximum intelligibility by keeping average power levels high and preventing clipping. The FP‑PA18H combines RDL's high audio performance standards with the capability of operation in harsh temperature environments. Notes: 1] If it is desired to monitor the operation of the complete system, the audio detector included in each FP‑PA18H can be wired back to the system audio rack to confirm that audio is being received and amplified at each pole. 2] If the FP‑PA18H is acquired with an RDL power supply, that supply must be located in an ambient environment not to exceed 40 degress C. FP‑PA18H modules are available without a power supply for use with high temperature supplies or in systems using distributed 24 Vdc power. Contact RDL Technical Support for more information.
Format-A with CATx Cable Adds Separate Analog User Line Inputs to Wireless Bluetooth Source
AN-2250
Description
One Format‑A receiver is used to provide two mono line‑level signals to a local mixer‑amplifier in the equipment rack. Bluetooth audio is sent to the receiver on pair B. Pair C is used to receive mono‑summed audio through the Mini‑Jack or pair of RCA jacks mounted next to the Bluetooth receiver. Audio is connected from the Format‑A senders through CATx cable with standard RJ45 connectors. The use of Format‑A provides simple connection using CATx cable and the economy of a single receiver and power supply.
Remote Switch at Paging Station Controls Solid-State Audio Routing to Proper Paging Zone
AN-2192
Description
The operator of the paging station can selectively page in either zone. The STM‑2X Switchable Low Noise Microphone Preamplifier amplifies the paging mic to line level. The preamp output is active only while the operator presses the mic push‑to‑talk button. The ST‑RX2 Audio Routing Switcher routes the line‑level audio signal to one of the two amplifiers. The NORMAL output feeds the Zone 1 amplifier; the SELECT output feeds Zone 2. The Audio Routing Switch at the operator’s station controls the ST‑RX2 TRIG terminal. When the ST‑RX2 TRIG control terminal is not connected to ground, audio is fed to the NORMAL output and the SELECT output is turned off. When the TRIG control terminal is grounded, the input audio is routed to the SELECT output and the NORMAL output is muted.