VIO ALC_HD is design to ensure the analog audio or audio embedded in video to hold on to the required level in broadcast system, such as “On Air” environment, program edit studios, satellite program recording rooms, etc. It is usually used to adjust the audio gain threshold manually; is adapted to auto varying audio gain limiting to the disposed scope, these two all can work with the remote control panel, on which LCD,PPM/VU meters and HI-FI speakers are equipped.

SNMP and RS-232 control protocol are also built in the machine. All the configuration and operation can be done by three ways, which are RCP, SNMP and RS-232.
VIO ALC-HD is a prefect standalone device to meet FCC newly imposed new rule for Commercial Advertisement Loudness Mitigation (CALM) Act

Appearance & interface

broadcast audio loudness control system
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Key Features

  • Up to 4 groups (16channels) audio gain, phase inversion, mute, shuffling and mixing, one group and/or one channel adjustable independent
  • Compatible with standard definition analog audio, embedded audio and high definition embedded audio
  • High fidelity audio monitoring
  • Two 28 segment high resolution color LED level meters displaying Simultaneously VU & PPM
  • Both host panel and remote panel equipped LCD windows displaying audio status real time
  • 1 EMBSDI input, 2 SDI output which one is bypass
  • 2 unbalanced analog inputs (1 Stereo)
  • Headphone jack, mutes speakers
  • Configuration and operation by Ethernet, RS-232 or manual
  • Built-in WEBSERVER, SNMP and RS-232 protocol
  • Redundant power supplies and controllers
  • Standard 1U Chassis
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Specification

Digital video input/output：

Input interface: 1xSDI, BNC 75Ω
Input interface: 2 xSDI, BNC 75Ω
Standard: SMPTE 259M-C；270Mb/s

Analog video output：

Output interface: 1xCVBS, BNC　75Ω

Audio output：

Input interface: 2xXLR connection
D/A Resolution 24-bit
Output Operating Levels +24, +22, +20, +18dBu, balanced, 36kohms
Maximum Output Level +24 dBu (66ohms)
Sampling Rate 48 kHz

 Speaker: 8W x 2

Meter:

Number: 2x28 segments
Degree scale：0 to -48dBFS(AES), +12dB to -50dB(VU)
Threshold：0 VU to -12/-18/-20/-24dBFS,

Power consumption：60W

Working temperature: 0°～40℃

Size: 44 mm (1U) x483 mm (19Inch) x498 mm

Weight: 5 Kg

Gross weight: 6.5 Kg