Honestech Audio Recorder 2.0 Deluxe - Manual (Page 32)

32. honestech
 Noise Reduction
You can reduce unwanted noise or static from recorded audio tracks.
1. Adjust the noise reduction level and click the Preview button to check the result.
2. If acceptable, click OK to apply the effect.
 Fade In/Out
You can apply Fade In/Out to the beginning and end of the audio clip.
- Fade In
Slowly increase the volume for the selected duration.
- Fade Out
Slowly decreasing the volume for the selected duration.