Howtosignalprocessing
Should I remove DC offset?
DC offset is a potential source of clicks, distortion and loss of audio volume. This page explains the causes and dangers of offset and how to remove it. Ideally any DC offset that is present should be removed as the first editing step after recording audio or importing it, before any other editing is attempted.
What is DC offset in audio?
DC offset (also known as DC bias) is when problems with the analog audio signal cause the waveform to be shifted or “offset” from its expected place.
What does remove DC offset mean?
The resulting vertical shift of the waveform position is clearly visible in the Audio File Editor. DC offset can also cause crackling sounds at the start and end of the audio region during playback. Removing DC offset centers the waveform around the zero amplitude line.
