head-related transfer function

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head-related transfer function

Abbreviation: HRTF
A mathematical representation of the ways in which the positions of the head, trunk, and ears filter sounds, altering the way they are perceived.
Synonym: anatomical transfer function
See also: function
References in periodicals archive ?
PHRTF: Efficient personalized HRTF computation for high-fidelity spatial sound.
The virtual audio cueing was provided by an Air Force Research Laboratory 3D Audio Display Generator (3D ADG) built by Veridian (Dayton, Ohio) coupled to a Polhemus (Colchester, VT) 3Space electromagnetic headtracker using HRTFs measured from a Knowles Electronic Manikin for Acoustic Research (KEMAR) (Itasca, IL) with 90th-percentile pinnae.
Niro has developed the HRTF algorithms and the hardware to do it.
These issues include (a) whether digital filters based on one generalized set of HRTFs will allow accurate spatial synthesis for all individuals (Wenzel, Arruda, Kistler, & Wightman, 1993; Wenzel, Wightman, Kistler, & Foster, 1988); (b) the intelligibility and localizability of speech signals in 3D auditory displays (Begault & Wenzel, 1993; Ricard & Meirs, 1994); and (c) masking and release from masking effects associated with spatially encoded displays (Doll & Hanna, 1995; Doll, Hanna, & Russotti, 1992).
The present results indicate that the synthesis of a 3D sound field using a generic HRTF creates sufficiently good performance to recommend its application in systems in which localizing and identifying visual targets in a timely fashion is a necessary component of the operator's task.
With Sony(R)/Philips(R) Digital Interface (S/PDIF) input and output, the Canyon 3D-2(TM) feature set includes: Sensaura(TM) True HRTF 3D positional MultiDrive(TM) technology for rich multispeaker and three-dimensional sound effects and audio placement; and Sensaura ZoomFX(TM), MacroFX(TM), and EnvironmentalFX(TM) for the precise magnification and placement of background audio.
Tenders are invited for Assistance In Operation And Maintenance Of HRTF, FMTF And ITFT Systems Equipments, R And D Mechanical Workshop, Special Labs,Buildings And Other Facilities Of R And D And Developmental Works.
Their HRTF measurements are reported in a separate paper (Wightman & Kistler, 1989a).
While baseline Sensaura 3D audio is included in SoundMAX, the Virtual Ear upgrade allows the user greater configurability of HRTF data, providing a more realistic 3D listening experience, particularly for headphone users.
The contract is for the supply, transfer, set in a place designated by an employee of the Employer, installation, commissioning and validation of the operation of a brand new measuring system for the registration binauralnych audio signals using HRTF technology "artificial head", in the laboratory building under the name "Research and Development Center Process Safety Technician Work and the Environment (TECH-SAFE-BIO) "CIOP-PIB Street.
The HRTF describes the transfer function from the sound source to the tympanic membrane that would occur in a real free field.