Abstract: A method of detecting a replay attack comprises: receiving an audio signal representing speech; identifying speech content present in at least a portion of the audio signal; obtaining information about a frequency spectrum of each portion of the audio signal for which speech content is identified; and, for each portion of the audio signal for which speech content is identified: retrieving information about an expected frequency spectrum of the audio signal; comparing the frequency spectrum of portions of the audio signal for which speech content is identified with the respective expected frequency spectrum; and determining that the audio signal may result from a replay attack if a measure of a difference between the frequency spectrum of the portions of the audio signal for which speech content is identified and the respective expected frequency spectrum exceeds a threshold level.

Abstract: A method of detecting a replay attack comprises: receiving an audio signal representing speech; identifying speech content present in at least a portion of the audio signal; obtaining information about a frequency spectrum of each portion of the audio signal for which speech content is identified; and, for each portion of the audio signal for which speech content is identified: retrieving information about an expected frequency spectrum of the audio signal; comparing the frequency spectrum of portions of the audio signal for which speech content is identified with the respective expected frequency spectrum; and determining that the audio signal may result from a replay attack if a measure of a difference between the frequency spectrum of the portions of the audio signal for which speech content is identified and the respective expected frequency spectrum exceeds a threshold level.

Abstract: This invention corresponds to a device for binaural capture of sound comprising an upper module, a first external ear and a second external ear incorporated into the upper module in a removable way; two transducers, a transducer is arranged in the first external ear and the other transducer is arranged in the second external ear; and, a clamping-coupling located in the lower part of the upper module.

Abstract: A method of detecting live speech comprises: receiving a signal containing speech; forming a framed version of the received signal that comprises a plurality of frames; forming a first subset of the plurality of frames, wherein each frame of the first subset contains a signal that contains voiced speech; forming a second subset of the plurality of frames, wherein each frame of the second subset contains a signal that contains unvoiced speech; forming a first frame that is representative of a sum of a plurality of frames of the first subset; forming a second frame that is representative of a sum of a plurality of frames of the second subset; performing a time-frequency transformation operation on the first frame, to form an average voiced frequency spectrum; performing a time-frequency transformation operation on the second frame, to form an average unvoiced frequency spectrum; obtaining one or more voiced features from the voiced frequency spectrum; and obtaining one or more unvoiced features from the unvoice

Abstract: A method of detecting a replay attack on a voice biometrics system comprises: receiving an audio signal representing speech; detecting a magnetic field; determining if there is a correlation between the audio signal and the magnetic field; and if there is a correlation between the audio signal and the magnetic field, determining that the audio signal may result from a replay attack.

Abstract: A method of detecting a replay attack comprises: receiving an audio signal representing speech; identifying speech content present in at least a portion of the audio signal; obtaining information about a frequency spectrum of each portion of the audio signal for which speech content is identified; and, for each portion of the audio signal for which speech content is identified: retrieving information about an expected frequency spectrum of the audio signal; comparing the frequency spectrum of portions of the audio signal for which speech content is identified with the respective expected frequency spectrum; and determining that the audio signal may result from a replay attack if a measure of a difference between the frequency spectrum of the portions of the audio signal for which speech content is identified and the respective expected frequency spectrum exceeds a threshold level.

Abstract: An example of a treatment composition for a packaging liner includes a fixing agent, a wax, and a latex. The fixing agent is selected from the group consisting of water-soluble mono-valent metallic salts, water-soluble multi-valent metallic salts, and combinations thereof. A total dry solids content of the example treatment composition ranges from about 5 wt % to about 40 wt % of a total weight of the treatment composition.

Abstract: A method of detecting a replay attack on a voice biometrics system comprises: receiving an audio signal representing speech; detecting a magnetic field; determining if there is a correlation between the audio signal and the magnetic field; and if there is a correlation between the audio signal and the magnetic field, determining that the audio signal may result from a replay attack.

Abstract: A method of detecting a replay attack on a voice biometrics system comprises: receiving an audio signal representing speech; detecting a magnetic field; determining if there is a correlation between the audio signal and the magnetic field; and if there is a correlation between the audio signal and the magnetic field, determining that the audio signal may result from a replay attack.

Abstract: A method of detecting a replay attack comprises: receiving an audio signal representing speech; identifying speech content present in at least a portion of the audio signal; obtaining information about a frequency spectrum of each portion of the audio signal for which speech content is identified; and, for each portion of the audio signal for which speech content is identified: retrieving information about an expected frequency spectrum of the audio signal; comparing the frequency spectrum of portions of the audio signal for which speech content is identified with the respective expected frequency spectrum; and determining that the audio signal may result from a replay attack if a measure of a difference between the frequency spectrum of the portions of the audio signal for which speech content is identified and the respective expected frequency spectrum exceeds a threshold level.

Abstract: A method of detecting a replay attack comprises: receiving an audio signal representing speech; identifying speech content present in at least a portion of the audio signal; obtaining information about a frequency spectrum of each portion of the audio signal for which speech content is identified; and, for each portion of the audio signal for which speech content is identified: retrieving information about an expected frequency spectrum of the audio signal; comparing the frequency spectrum of portions of the audio signal for which speech content is identified with the respective expected frequency spectrum; and determining that the audio signal may result from a replay attack if a measure of a difference between the frequency spectrum of the portions of the audio signal for which speech content is identified and the respective expected frequency spectrum exceeds a threshold level.

Abstract: A method of detecting a replay attack comprises: receiving an audio signal representing speech; identifying speech content present in at least a portion of the audio signal; obtaining information about a frequency spectrum of each portion of the audio signal for which speech content is identified; and, for each portion of the audio signal for which speech content is identified: retrieving information about an expected frequency spectrum of the audio signal; comparing the frequency spectrum of portions of the audio signal for which speech content is identified with the respective expected frequency spectrum; and determining that the audio signal may result from a replay attack if a measure of a difference between the frequency spectrum of the portions of the audio signal for which speech content is identified and the respective expected frequency spectrum exceeds a threshold level.

Abstract: This invention corresponds to a device for binaural capture of sound comprising an upper module, a first external ear and a second external ear incorporated into the upper module in a removable way; two transducers, a transducer is arranged in the first external ear and the other transducer is arranged in the second external ear; and, a clamping-coupling located in the lower part of the upper module.

Abstract: A method of detecting a replay attack on a voice biometrics system comprises: receiving an audio signal representing speech; detecting a magnetic field; determining if there is a correlation between the audio signal and the magnetic field; and if there is a correlation between the audio signal and the magnetic field, determining that the audio signal may result from a replay attack.

Abstract: The present disclosure provides recording media and related methods. A recording media for printing can comprise a base paper and a backside extruded polyethylene layer on a side of the base paper. The backside extruded polyethylene layer can include a filler and an organic reagent admixed in the extruded polyethylene layer, wherein the filler and organic reagent are present in the backside extruded polyethylene layer in an amount of 20% by weight to 50% by weight based on the total weight of the backside extruded polyethylene layer.

Abstract: In one example, a print medium includes pigment particles sized less than a hundred nanometers and frictional control additives. An undercoating is disposed between the base material and top coating. The undercoat includes a first sub-layer comprising a pigment fixative agent and a second sub-layer comprising a dye fixative agent. The top coating forms a protective and low friction coating over the undercoating.

Abstract: The present disclosure provides recording media and related methods. A recording media for printing can comprise a base paper and a backside extruded polyethylene layer on a side of the base paper. The backside extruded polyethylene layer can include a filler and an organic reagent admixed in the extruded polyethylene layer, wherein the filler and organic reagent are present in the backside extruded polyethylene layer in an amount of 20% by weight to 50% by weight based on the total weight of the backside extruded polyethylene layer.

Abstract: In one example, a print medium includes pigment particles sized less than a hundred nanometers and frictional control additives. An undercoating is disposed between the base material and top coating. The undercoat includes a first sub-layer comprising a pigment fixative agent and a second sub-layer comprising a dye fixative agent The top coating forms a protective and low friction coating over the undercoating.

Abstract: An art frame includes a three-dimensional supporting frame, which includes an image receiving surface and an opposed back surface, a center portion defining a perimeter, and at least three foldable extensions extending from the perimeter. Each foldable extension includes two folds to be folded toward the back surface to form a frame portion. Abutting frame portions form respective corners of the three-dimensional supporting frame. A corner mount is to be inserted into the abutting frame portions at the respective corners. Each corner mount includes first and second opposed surfaces, a shaped portion, and two corner mount foldable extensions extending from two sides of the shaped portion. Each corner mount foldable extension includes two tabs to be folded toward the first opposed surface. An adhesive layer is established on the second opposed surface and is to be adhered to the back surface of the three-dimensional supporting frame at the respective corners.

Abstract: An art frame includes a three-dimensional supporting frame, which includes an image receiving surface and an opposed back surface, a center portion defining a perimeter, and at least three foldable extensions extending from the perimeter. Each foldable extension includes two folds to be folded toward the back surface to form a frame portion. Abutting frame portions form respective corners of the three-dimensional supporting frame. A corner mount is to be inserted into the abutting frame portions at the respective corners. Each corner mount includes first and second opposed surfaces, a shaped portion, and two corner mount foldable extensions extending from two sides of the shaped portion. Each corner mount foldable extension includes two tabs to be folded toward the first opposed surface. An adhesive layer is established on the second opposed surface and is to be adhered to the back surface of the three-dimensional supporting frame at the respective corners.