{
  "title": "Doppler effect page: speed of sound and pitch threshold",
  "description": "Reference values: the inputs and result of the speed of sound used on this page, a published value for comparison, and the adult pure-tone threshold from Fung et al. 2025.",
  "license": "CC BY 4.0",
  "license_url": "https://creativecommons.org/licenses/by/4.0/",
  "creator": "Tricks of Ear and Eye",
  "page": "https://tricksofearandeye.com/sound/doppler-effect/",
  "derived_from": [
    "Ideal-gas formula for dry air and its ratio of specific heats from Yue, Dong & Qi 2025, equation 6",
    "Reber, Nishimura, Janisch, Robertson & Fitch 2015, Methods",
    "Fung, Whiteford, Mehta & Lau 2025, Table 1"
  ],
  "method": "Compiled by Tricks of Ear and Eye from the data listed",
  "data_credit": [
    "Yue, Y., Dong, Z., & Qi, Z.-m. (2025). Acoustic Fabry–Perot resonance detector for passive acoustic thermometry and sound source localization. Sensors 25(8): 2445, equation 6 and the text after it. https://doi.org/10.3390/s25082445, CC BY 4.0",
    "Fung, J., Whiteford, K. L., Mehta, A. H., & Lau, B. K. (2025). Pitch perception in school-aged children: Pure tones, resolved and unresolved harmonics. JASA Express Letters 5(1): 014403, Table 1. https://doi.org/10.1121/10.0034894, CC BY 4.0"
  ]
}