Filters are used to remove a range of frequencies or amplitudes from a sound and can produce a variety of effects. The submenu contains several filter related effects.
Use Auto Offset Removal automatically remove a vertical shift or dc offset in the waveform. Offsets occur when audio is wired through several external devices that do not share a common ground. Computers with integrated sound hardware often have significant offsets as well. If the waveform is constantly above or below zero during silence, then it has an offset that must be removed. Offsets can cause pops and clicks between edit points and other problems.
Unlike Offset, this effect does not need to scan the entire selection and offsets cannot be set to specific values. Values to cancel out existing offsets are automatically calculated and used. Even varying offsets are removed.
| Auto Offset Removal Setting | |
|---|---|
| Setting | Description |
| Duration for offset calculation (s) | Sets the length of time to analyze the audio for an offset. For constant, stable offsets, set this value to the maximum. For fluctuating offsets, use lower values. |