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Fix ADC gain forumla #551

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Fix ADC gain forumla #551

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2 changes: 1 addition & 1 deletion wfdb/io/_signal.py
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Original file line number Diff line number Diff line change
Expand Up @@ -792,7 +792,7 @@ def calc_adc_gain_baseline(self, ch, minvals, maxvals):
if baseline > MAX_I32:
# pmin maps to dmin, baseline maps to 2**31 - 1
# pmax will map to a lower value than before
adc_gain = (MAX_I32) - dmin / abs(pmin)
adc_gain = (MAX_I32 - dmin) / abs(pmin)
baseline = MAX_I32
# This may happen if pmin > 0
elif baseline < MIN_I32:
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