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September 10, 2025The Journal of the Acoustical Society of America

Investigation of errors and uncertainty in low-frequency impedance tube measurements

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Authors

MRMaurice I. RipleyZCZiqi ChenNXNing Xiang

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Overview

This research investigates error reduction and environmental impacts on acoustic conditions in impedance tubes.

Key Points

  • Incorporating acoustic conditions enhances measurement accuracy, reducing error in low-frequency tests.
  • Using Bayesian inference in a transfer function model improved measurement precision for frequencies below 1.5 kHz.
  • Environmental changes were minimized by measuring the empty impedance tube, allowing more precise sample assessments.
  • Recommendations for improved procedures were outlined, aiming to refine impedance tube measurement techniques further.

Cite This Study

Ripley et al. (2025) studied this question.

synapsesocial.com/papers/68c1b5fe54b1d3bfb60ea9d9https://doi.org/10.1121/10.0038336
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