US Patent 9659562 Environment adjusted speaker identification

A system estimates environment-specific alterations of a user sound received at the system. The system modifies the received user sound to formulate a modified user sound by at least compensating for the audio modifications and/or formulates an expected audio model of a user by modifying a stored user-dependent audio model of the user with the audio modification. The system is also capable of estimating whether the received user sounds is from a particular user by use of a corresponding user-dependent audio model.