Key players
Aircraft Noise Monitoring

The main suppliers of integrated noise and trajectory monitoring systems are listed in Table 2 . (Suppliers of acoustic metrology equipment for environmental noise measurement are too numerous to list here). Lochard and Brüel & Kjaer (individually or in joint ventures) currently dominate the market. However, suppliers whose markets are less globalized can demonstrate a greater capacity for agility, customizing to the specific needs of a particular airport.