8/31/2023 0 Comments What is linear phase eq![]() ![]() It's easy to see why it would be nice not to have phase shift in a filter or EQ. It is possible to design a circuit or algorithm with more than the minimum phase shift, but this would only be done if the extra phase shift was actually wanted, such as in the all-pass filter which only affects phase and not the level balance of frequencies. In a simple electronic circuit, or its algorithmic equivalent, this is what should happen. 'Minimum phase' means that the amount of phase shift that happens is as little as possible. So low frequencies can be delayed with respect to high, or vice versa, depending on how the EQ parameters are set. As a side-effect of changing the level balance of different bands of frequencies, conventional EQ also changes their phase relationships.
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