Dacmagic azur – Cambridge Audio Upsampling Digital to Analog Converter azur DacMagic User Manual

Page 21

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DacMagic

azur

21

ENGLISH

The Minimum Phase filter is another highly regarded audio filter that offers even lower ripple in the
pass and stop bands. Unlike the Linear Phase filter, group delay is not constant so some time-
coherence is lost; however, phase shift is low and the particular benefit with this filter is that the
impulse response exhibits no pre-ringing.

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0 20 40 60 80 100

120

140

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Impulse response

Time (samples)

Amplitude

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