Reverberation compensation for far-field speaker recognition

A processor-implemented method for configuring a reverberation simulator for speaker recognition, the method comprising:

• receiving, by a processor, a first audio signal associated with speech of a user, the first audio signal captured at a first distance from a microphone;
• selecting, by the processor, a trial set of parameters for a reverberation simulator;
• generating, by the processor, a speaker model based on extracted features of an application of the reverberation simulator to the first audio signal;
• receiving, by the processor, one or more additional audio signals associated with speech of the user, the additional audio signals captured at a second distance from the microphone, the second distance greater than the first distance;
• scoring, by the processor, results of application of the speaker model to extracted features of each of the additional audio signals;
• and
• associating, by the processor, a summation of the scores with the trial set of parameters the summation of the scores to indicate a relative effectiveness of the trial set of parameters for modeling a far-field environment of the microphone at the second distance.

At least one non-transitory computer readable storage medium having instructions encoded thereon that, when executed by one or more processors, result in the following operations for speaker recognition, the operations comprising:

• receiving an authentication audio signal associated with speech of a user;
• extracting features from the authentication audio signal;
• scoring results of application of one or more speaker models to the extracted features, wherein each of the speaker models is trained based on a training audio signal, the training audio signal processed by a reverberation simulator to simulate selected far-field environmental effects to be associated with the speaker model;
• selecting one of the speaker models, the selected speaker model associated with the highest of the scores;
• and
• recognizing an identity of the user based on a known speaker identification (ID) associated with the selected speaker model, the recognized identity for use to authenticate the user.

At least one non-transitory computer readable storage medium having instructions encoded thereon that, when executed by one or more processors, result in the following operations for configuring a reverberation simulator for speaker recognition, the operations comprising:

• receiving a first audio signal associated with speech of a user, the first audio signal captured at a first distance from a microphone;
• selecting a trial set of parameters for a reverberation simulator;
• generating a speaker model based on extracted features of an application of the reverberation simulator to the first audio signal;
• receiving one or more additional audio signals associated with speech of the user, the additional audio signals captured at a second distance from the microphone, the second distance greater than the first distance;
• scoring results of application of the speaker model to extracted features of each of the additional audio signals;
• and
• associating a summation of the scores with the trial set of parameters the summation of the scores to indicate a relative effectiveness of the trial set of parameters for modeling a far-field environment of the microphone at the second distance.