Details
| Original language | English |
|---|---|
| Article number | 460 |
| Number of pages | 16 |
| Journal | Applied Sciences (Switzerland) |
| Volume | 9 |
| Issue number | 3 |
| Early online date | 29 Jan 2019 |
| Publication status | Published - 1 Feb 2019 |
Abstract
Several studies show that the reverberation and spectral details in direct sounds are two essential cues for perceived externalization of virtual sound sources in reverberant environments. The present study investigated the role of these two cues in contralateral and ipsilateral ear signals on perceived externalization of headphone-reproduced binaural sound images at different azimuth angles. For this purpose, seven pairs of non-individual binaural room impulse responses (BRIRs) were measured at azimuth angles of -90°, -60°, -30°, 0°, 30°, 60°, and 90° in a listening room. The magnitude spectra of direct parts were smoothed, and the reverberation was removed, either in left or right ear BRIRs. Such modified BRIRs were convolved with a speech signal, and the resulting binaural sounds were presented over headphones. Subjects were asked to assess the degree of perceived externalization for the presented stimuli. The result of the subjective listening experiment revealed that the magnitude spectra of direct parts in ipsilateral ear signals and the reverberation in contralateral ear signals are important for perceived externalization of virtual lateral sound sources.
Keywords
- Binaural reproduction, Binaural room impulse response, Contralateral ear, Head-related transfer function, Headphone-reproduced virtual sound images, Ipsilateral ear, Magnitude spectra, Perceived externalization, Reverberation
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- Instrumentation
- Engineering(all)
- General Engineering
- Chemical Engineering(all)
- Process Chemistry and Technology
- Computer Science(all)
- Computer Science Applications
- Chemical Engineering(all)
- Fluid Flow and Transfer Processes
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In: Applied Sciences (Switzerland), Vol. 9, No. 3, 460, 01.02.2019.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - The Role of Reverberation and Magnitude Spectra of Direct Parts in Contralateral and Ipsilateral Ear Signals on Perceived Externalization
AU - Li, Song
AU - Schlieper, Roman
AU - Peissig, Jürgen
N1 - Funding information: This work is supported by the Huawei Innovation Research Program FLAGSHIP (HIRP FLAGSHIP) project.
PY - 2019/2/1
Y1 - 2019/2/1
N2 - Several studies show that the reverberation and spectral details in direct sounds are two essential cues for perceived externalization of virtual sound sources in reverberant environments. The present study investigated the role of these two cues in contralateral and ipsilateral ear signals on perceived externalization of headphone-reproduced binaural sound images at different azimuth angles. For this purpose, seven pairs of non-individual binaural room impulse responses (BRIRs) were measured at azimuth angles of -90°, -60°, -30°, 0°, 30°, 60°, and 90° in a listening room. The magnitude spectra of direct parts were smoothed, and the reverberation was removed, either in left or right ear BRIRs. Such modified BRIRs were convolved with a speech signal, and the resulting binaural sounds were presented over headphones. Subjects were asked to assess the degree of perceived externalization for the presented stimuli. The result of the subjective listening experiment revealed that the magnitude spectra of direct parts in ipsilateral ear signals and the reverberation in contralateral ear signals are important for perceived externalization of virtual lateral sound sources.
AB - Several studies show that the reverberation and spectral details in direct sounds are two essential cues for perceived externalization of virtual sound sources in reverberant environments. The present study investigated the role of these two cues in contralateral and ipsilateral ear signals on perceived externalization of headphone-reproduced binaural sound images at different azimuth angles. For this purpose, seven pairs of non-individual binaural room impulse responses (BRIRs) were measured at azimuth angles of -90°, -60°, -30°, 0°, 30°, 60°, and 90° in a listening room. The magnitude spectra of direct parts were smoothed, and the reverberation was removed, either in left or right ear BRIRs. Such modified BRIRs were convolved with a speech signal, and the resulting binaural sounds were presented over headphones. Subjects were asked to assess the degree of perceived externalization for the presented stimuli. The result of the subjective listening experiment revealed that the magnitude spectra of direct parts in ipsilateral ear signals and the reverberation in contralateral ear signals are important for perceived externalization of virtual lateral sound sources.
KW - Binaural reproduction
KW - Binaural room impulse response
KW - Contralateral ear
KW - Head-related transfer function
KW - Headphone-reproduced virtual sound images
KW - Ipsilateral ear
KW - Magnitude spectra
KW - Perceived externalization
KW - Reverberation
UR - http://www.scopus.com/inward/record.url?scp=85061033779&partnerID=8YFLogxK
U2 - 10.3390/app9030460
DO - 10.3390/app9030460
M3 - Article
AN - SCOPUS:85061033779
VL - 9
JO - Applied Sciences (Switzerland)
JF - Applied Sciences (Switzerland)
SN - 2076-3417
IS - 3
M1 - 460
ER -