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Cake day: August 3rd, 2023

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  • I would also guess the smaller range of hardware revisions is easier to keep track of when considering something as device specific as microphone frequency response curves or approximate intrinsic camera calibration values, thus simplifying the post-processing or data ingestion from an aggregate deployment of recording equipment.

    While Android devices are probably significantly cheaper, they’d vary quite a bit in terms of microphone, camera, and lens manufacturers, not to mention ADCs, gain to noise ratios and cheapest firmware, depending on what the OEM felt like swapping to for that minor product revision.

    Not sure how precise these researchers are trying to calibrate and rectify field measurements, but if they’re using internal phone sensors rather then external AV peripherals, then homogeneity across field computers would simply matters of data uniformity.