Friendly, easy to use, successful and reliable, Opera EX is both a measurement station and an area server, for a network based on secondary Opera RF stations. Opera EX allows for the transfer of all data to the central server.

Designed mainly to meet the requirements of European Directive 2002/49/EC, Opera EX is deployed on site as an Oper@ network for Environmental Monitoring:

• Noise and Vibration Building Sites Management,
• City Noise Management,
• Noise Monitoring of the Airports,
• Noise Monitoring of Recreational Activities, etc.

Oper@ is an ideal, objective and quantified answer to the request for information on environmental noise from the population.

Approved by the LNE since 2007, Opera EX is both a precision measurement station and a communications tool (area server) between  Opera RF stations and the central server. Measurements are stored and accessible in real time due to permanent communication with the server via ADSL / GPRS / 3G technology. For perfect reliability of the results, Opera EX does a periodical self check of the measurement channels. 

Opera EX, innovative technological performances:

• Acoustic channels: 2
• Dynamics: 25-97 dBA; 30-117 dBA; 35-137 dBA
• Time Constants: F, I in parallel
• Descriptors: Lp, Lpk, Leq in parallel 
• Statistical indices: yes, 5
• Frequency Analysis 1/3 oct.: in Leq or LpS (or LpF or LpI)
• Audio Recording: yes, 1 channel (selectable)
• Trigger: on level / on event (spectrum, 100MS, MPEG 3)
• Storage: compact flash, flash 512 MB
• Data transfer: periodic scheduled (programmed) publication
• Streaming: data and MPEG 3
• Calibration: actuator / voltage insertion / manual

Opera pioneers 'intelligent monitoring' that allows for:

• Alarm and automatic decision making,
• Public information,
• Storage of local, national, even international data,
• Compliance with different directives, among which the European directive...

This new concept meets the requirements of associations and citizens that need irrefutable evidences regarding the improvement of noise situations.

• Metrological sound quality,
• Easy deployment and adaptation to each situation,
• Low cost for each measurement point,
• Robust operating for continuous and long-term use (several years),
• Synchronous and metrological transfer of measured data to a central site,
• Upgradeability of the network as for station-embedded features,
• Remote management of the entire network from the central site,
• Automatic source detection,
• Real-time alarm...

The definitely innovating Opera system offers equipment designed for long-term noise measurements, based on radio communication techniques or on Internet-based transmission structures. These products integrate performing technology, MP3 encoding, WIFI, remote Internet connections, dynamic databases...