Synapse
⌘+K
Synapse
PulseExploreClubsResearchersJournals
Instagram
HomeClubsExplore
September 1, 2023The Journal of the Acoustical Society of AmericaOpen Access

Sound field synthesis for psychoacoustic research: In situ evaluation of auralized sound pressure level

View Full Paper
Ask AI
Bookmark
Share

Authors

MKMatthieu KuntzNBNorbert F. BischofBSBernhard U. Seeber

Discussion

Loading...

Member takes

Overview

Experimental evaluation demonstrates sound field synthesis accuracy across a 61-loudspeaker array, indicating sweet-spot dimensions remain sufficient for reliable psychoacoustic testing.

Key Points

  • To evaluate the physical reproduction accuracy and effective sweet-spot dimensions of loudspeaker-based sound field synthesis across an extended listening area in a laboratory environment.
  • Assessed acoustic reproduction inside an anechoic chamber using the 61-loudspeaker Simulated Open Field Environment.
  • Tested compliance with the ISO 8253-2:2009 standard for free-field audiology using critical-band-wide noise.
  • Mapped sound pressure across a 187 cm × 187 cm area using higher-order Ambisonics with and without max rE weighting, vector base amplitude panning, and nearest loudspeaker mapping.
  • Acoustic reproduction met the ISO 8253-2:2009 standard accuracy criteria for free-field audiology when using critical-band-wide noise.
  • Physical sound field measurements demonstrated that the effective sweet-spot boundary follows the rule kr ≤ N/2 rather than the theoretical kr ≤ N.
  • Synthesized sound fields over the 187 cm × 187 cm evaluation zone yielded sweet-spot sizes sufficiently large to preserve experimental validity in psychoacoustic research.

Cite This Study

Kuntz et al. (2023) studied this question.

synapsesocial.com/papers/6a1ea18e6b4935698da41ef7https://doi.org/10.1121/10.0021066
View Full Paper
Ask AI
Bookmark
Share

Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Spatial Analysis and Synthesis Methods: Subjective and Objective Evaluations Using Various Microphone Arrays in the Auralization of a Critical Listening Room2024 · 3 citations
  2. 2Reproduction of Simulated Acoustic Scenes for Clinical and Hearing Research in a Reverberant Room Using Four Horizontal Loudspeakers2025
  3. 3Sound field synthesis method using distributed spherical microphone arrays based on spherical harmonics2025
  4. 4Simulation of acoustical parameters of churches in a virtual acoustics laboratory2024
  5. 5Sound Field Synthesis with Acoustic Waves2024