Method of controlling a hearing instrument comprising at least one hearing device, the method comprising determination of an acoustic environment at least partially by means of calculating the complex coherence of signals from either a pressure microphone and a particle velocity transducer; a pair of pressure microphones in a single hearing device; or a pair of pressure microphones, one situated in each of a pair of hearing devices. This enables finer determination of acoustic environments, thus improving the hearing experience for the wearer of the hearing instrument.The invention further relates to a corresponding hearing instrument.