Abstract
In virtual auditory environment, early reflections are usually simulated by the image-source method, and binaural signals are synthesized by convolving the input stimulus with corresponding head-related impulse responses (HRIRs). Considering the limited resolution of the human hearing, this work investigates the minimal length of HRIRs needed in early reflection simulation via a simple model consisting of a single direct sound and a reflection. The direct sound is synthesized using 512-point HRIR and fixed at the position directly in front of the subject, while the reflection is synthesized by HRIRs at various directions with four time-domain lengths (512, 256, 128, and 64 points, at a sampling frequency of 44.1 kHz) as well as five time delays relative to the direct sound (from 10 ms to 50 ms at intervals of 10 ms). A three-interval, two-alternative forced-choice paradigm is employed in this work. Results indicate that for most spatial directions the HRIR with a length of 64-point is perceptually adequate in early reflection simulation. [Supported by State Key Laboratory of Subtropical Building Science, South China University of Technology, Grant No. 2013KB23]
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
