Undescribed Horrific Abuse, One Victim & Survivor of Many gmkarl at gmail.com
Thu Nov 10 09:31:30 PST 2022

a simple sampling error would be a period that is off by a half sample.
in that situation, the wave would look like one of twice the period

if the wave is at twice the sampling rate with data = np.random.random(8)
then when recorded at half its resolution it will look like
np.concatenate((data[::2],data[1::2])) or such .

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