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.
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.
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.
measurements are reported in a separate paper (Wightman & Kistler, 1989a).
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.
describes the transfer function from the sound source to the tympanic membrane that would occur in a real free field.