Method and device for characterising a user, and device for providing services using same

A device for characterizing a user, the device comprising:

• a processor;
• and
• a non-transitory computer readable medium comprising instructions stored thereon which when executed by the processor configure the device to execute a method for characterizing a user of a service, the method comprising:
• comparing first data, associated with a first sound object spatialized at a first location of an audio scene spatialized by a user interface of a communication terminal, with second data received following a reproduction of the spatialized first sound object, the first data being distinct from the first sound object, the second data being based on a spatialized second sound object perceived at a second location of the spatialized audio scene;
• and
• in response to a positive result of the comparing, triggering a characterization of an interaction source of the service as a suitable user.

A service provision device, the service provision device comprising:

• a processor capable of implementing at least one service;
• an exchange interface for exchanges with a communication terminal;
• and
• a device for characterizing a user of the service, comprising a comparator of first data, associated with a first spatialized sound object at a first location by a user interface of the communication terminal, with second data received following a reproduction of the first spatialized sound object, the first data being distinct from the first sound object, the second data being based on a second spatialized sound object perceived at a second location of the spatialized audio scene, the comparator triggering, in response to a positive result, a characterization of a source of interaction with the service provision device as an appropriate user, and commanding the processor to implement the service.