phase response

Phase response describes how a system, like an audio filter or an electronic circuit, shifts the timing of different frequencies of a signal as it passes through. In simple terms, it shows whether certain parts of a sound or signal are delayed or advanced relative to others. This is important because if different frequencies are shifted unevenly, it can distort the overall shape or quality of the sound or signal. Understanding phase response helps engineers design systems that preserve the original timing and features of signals, ensuring accurate and high-quality output.