This is related to the topic of customizing firmware to set different sampling rates for different time periods, but I realize I might be asking the wrong question (my original question here https://www.openacousticdevices.info/support/configuration-support/record-birds-and-bats-with-different-settings/p-1/dl-5ec80e5b6864df0017e1fda2-5d5e8035a7548400161d7c29-5?origin=member_comments_page). Instead, how about this: Setting the sampling rate to a higher frequency to capture bats (256 kHz, with the Nyquist frequency of 128 kHz) would theoretically register bats, birds and frogs (the latter 2 rarely emitting over 12 kHz or 6 kHz, respectively). If I want to sample all 3 taxa, can I do so by simply settin all recording periods to the higher sampling rate of 256 kHz, or will the quality of the lower frequency recordings be poorer than if I had set the sampling rate lower for those? Or is this manageable with sub-sampling during post-processing?
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Will a high sampling rate produce lower quality recordings at much lower registers?
Will a high sampling rate produce lower quality recordings at much lower registers?
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Thankyou for your answer.
Simple answer - No.
The sample rate only limits the maximum frequency that can be recorded without aliasing and the size of the resulting sound file. Changing the sample rate has no effect on the quality of reproduction of frequencies below the Nyquist frequency.