OBJECTIVE: Slow down drum loops without degrading audio quality.
BACKGROUND: Slowing down Acidized drum loops usually reduces the audio quality, but this alternative method retains fidelity. Sonar’s AudioSnap feature can split a loop into slices, as with REX files. You can then slow down the tempo without applying DSP to the slice; each slice remains anchored to its original location in a measure. If there are clicks at the slice boundaries, you can add a short fade automatically to all clips.
1. Import the file you want to slice, then adjust Sonar’s tempo to match the clip tempo. The clip end should fall on a measure boundary.
2. Click on the Transient Tool. The AudioSnap palette opens.
3. Adjust the AudioSnap transient slider so every transient in the loop has a transient marker. You’ll typically use a low Threshold value, and resolution set to All (transient markers are colored red for clarity).
4. Click on the AudioSnap Split Beats into Clips button. AudioSnap slices the file.
5. Click on the Transient Tool again to toggle it off, and close the AudioSnap palette.
6. Select all slices (e.g., draw a marquee around them). All slices become highlighted.
7. Go Process > Fade Selected Clips. Choose a short fade in and fade out time (e.g., 5-10ms) to soften any clicks, with a Slow fade in and Fast fade out curve respectively; make sure Alter Existing Times and Alter Existing Curves are checked, then click on OK.
8. When you slow the tempo, each clip will remain anchored to the same place in the measure, and the short fade will minimize clicks. Done!
¦ In Step 1. if the clip is a Groove Clip, convert it to a regular clip by selecting it and typing Ctrl-L.
¦ In Step 3, how successfully this process works depends on whether every transient has a transient marker. If you need to insert one, with the Transient Tool enabled and the AudioSnap palette visible, Alt-click where you want to insert a marker.