公开(公告)号：US10694304B2

公开(公告)日：2020-06-23

申请号：US15573581

申请日：2015-06-26

Applicant: Intel Corporation

Inventor： Przemyslaw Maziewski ,  Lukasz Kurylo ,  Piotr Chlebek

IPC: H04R29/00 ,  H04R1/40 ,  H04R3/00 ,  H04R25/00 ,  H04M3/56

Abstract: For a multiple microphone system, a phase response mismatch may be corrected. One embodiment includes receiving audio from a first microphone and from a second microphone, the microphones being coupled to a single device for combining the received audio, recording the received audio from the first microphone and the second microphone before combining the received audio, detecting a phase response mismatch in the recording at the device between the audio received at the second microphone and the audio received at the first microphone, if a phase response mismatch is detected, then estimating a phase delay between the second microphone and the first microphone, and storing the estimated phase delay for use in correcting the phase delay in received audio before combining the received audio.

公开(公告)号：US20170200451A1

公开(公告)日：2017-07-13

申请号：US15128935

申请日：2014-07-04

Applicant: INTEL CORPORATION

Inventor： Tobias Bocklet ,  Adam Marek ,  Piotr Chlebek

IPC: G10L17/08 ,  G10L17/02 ,  G10L17/16 ,  G10L25/24

CPC classification number: G10L17/08 ,  G10L17/02 ,  G10L17/06 ,  G10L17/16 ,  G10L25/24

Abstract: Techniques related to detecting replay attacks on automatic speaker verification systems are discussed. Such techniques may include receiving an utterance from a user or a device playing back the utterance, determining features associated with the utterance, and classifying the utterance in a replay utterance class or an original utterance class based on a statistical classification or a margin classification of the utterance using the features.