Abstract: Automated audio multi-issue comparison test (AMCT) protocols for deception detection. In one exemplary embodiment, testing equipment that may include an eye tracking device, such as an infrared camera, computer, keyboard, mouse, chin rest, and audio output device (headphones or speaker) is used. A series of Agree and Disagree statements regarding issues of interest are presented to the examinee in an audio format as by text-to-speech narration. Each statement must include an introductory phrase, topic phrase and declaration phrase. As statements are presented, a neutral image is presented on a visual display, then replaced by an image prompting the examinee to provide a response when the statement concludes. The eye tracker measures and records eye movements during the test. At the conclusion, ocular-motor measures and test question responses are combined by means of a logistic regression equation to compute the probability of deception.

Abstract: Systems and methods for test protocols for deception detection using a mobile electronic device, such as a smartphone or tablet computer that includes a camera, an audio output, such as a speaker, and a microphone. For the test, the mobile device is positioned so that the camera captures an image of at least one eye of the examinee. The examinee's face may be illuminated by a light on the mobile device and the mobile device held steady as a test is conducted. A series of “True” and “False” statements regarding relevant issues, including the issue of interest are presented to the examinee in an audio format by the mobile device. The examinee provides a spoken response when the statement concludes. The mobile device camera records data during the test. Data regarding features correlated with credibility are extracted and analyzed with a suitable model to compute the probability of deception.

Abstract: Automated audio multi-issue comparison test (AMCT) protocols for deception detection. In one exemplary embodiment, testing equipment that may include an eye tracking device, such as an infrared camera, computer, keyboard, mouse, chin rest, and audio output device (headphones or speaker) is used. A series of Agree and Disagree statements regarding issues of interest are presented to the examinee in an audio format as by text-to-speech narration. Each statement must include an introductory phrase, topic phrase and declaration phrase. As statements are presented, a neutral image is presented on a visual display, then replaced by an image prompting the examinee to provide a response when the statement concludes. The eye tracker measures and records eye movements during the test. At the conclusion, ocular-motor measures and test question responses are combined by means of a logistic regression equation to compute the probability of deception.

Abstract: The present application discloses a deception detection systems and processes that use a processor; an eye tracking device connected to the processor, and a set of physiological sensors connected to the processor. The eye tracking device may comprise an infrared camera that is positioned to be able to track the oculomotor activity of a subject. The deception detection system also includes a respiratory sensor connected to the processor positioned to be able to track the respiration of the subject and an electrodermal sensor connected to the processor positioned to be able to detect the electrodermal activity of the subject. Additionally, the deception detection system includes a cardiovascular sensor connected to the processor positioned to be able to detect the cardiovascular activity of the subject and a speaker connected to the processor positioned to be able to transmit sound to the subject.

Abstract: The present application discloses a deception detection systems and processes that use a processor; an eye tracking device connected to the processor, and a set of physiological sensors connected to the processor. The eye tracking device may comprise an infrared camera that is positioned to be able to track the oculomotor activity of a subject. The deception detection system also includes a respiratory sensor connected to the processor positioned to be able to track the respiration of the subject and an electrodermal sensor connected to the processor positioned to be able to detect the electrodermal activity of the subject. Additionally, the deception detection system includes a cardiovascular sensor connected to the processor positioned to be able to detect the cardiovascular activity of the subject and a speaker connected to the processor positioned to be able to transmit sound to the subject.

Abstract: Automated audio multi-issue comparison test (AMCT) protocols for deception detection. In one exemplary embodiment, testing equipment that may include an eye tracking device, such as an infrared camera, computer, keyboard, mouse, chin rest, and audio output device (headphones or speaker) is used. A series of Agree and Disagree statements regarding issues of interest are presented to the examinee in an audio format as by text-to-speech narration. Each statement must include an introductory phrase, topic phrase and declaration phrase. As statements are presented, a neutral image is presented on a visual display, then replaced by an image prompting the examinee to provide a response when the statement concludes. The eye tracker measures and records eye movements during the test. At the conclusion, ocular-motor measures and test question responses are combined by means of a logistic regression equation to compute the probability of deception.

Abstract: Embodiments of the present invention relate to a rapid, automated, and objective method for using oculomotor measures to determine whether a person is being truthful or deceitful. More specifically, embodiments of the present invention measure a plurality of oculomotor and behavioral dependent measures while a subject reads and responds to written items that are both related and unrelated to a suspected crime. The oculomotor and behavioral measures may include pupil diameter, response times, the number of fixations during reading, the time spent reading and rereading items, and the rate of eye blinks on the current and subsequent item. Several behavioral and oculomotor measures were diagnostic of deception, and a weighted combination of four of those variables correctly classified 84% of guilty and 89% of innocent subjects.

Abstract: The present invention relates to a passive speaker comparator which allows performance comparison of various speakers utilizing the same program source at the same listening volume level in an audio system providing an audio source and various preamplifying and amplifying gain stages, comprising, housing means, an impedance matching network operably mounted on said housing means, a plurality of adjustable attenuators operably mounted on said housing means and connected electrically to said impedance matching network, said network and attenuators disposed electrically between the appropriate preamplifier and amplifier gain stages, a plurality of attenuator switching means operably coupled to said network and, a plurality of speaker switching means operably connected to the output of the appropriate amplification stage and a plurality of speaker connector means operably connected to said speaker switching means, such that a preset attenuator is disposed between the appropriate preamplifier stage and the appropr