Roland SP-404MKII Creative Sampler and Effector - Manual (Page 18)

Playing Back Samples (SAMPLE MODE)
18
Playing Back a Sample in Reverse (REVERSE)
You can use the reverse function to play back samples in reverse (from end to start).
1. Press pads [1]–[16] to select the sample you want to play back in reverse.
2. Press the [REVERSE] button to turn reverse playback on (the button lights up).
Doing this sets the sample to play backwards.
When you press the [REVERSE] button while a sample is playing back, the sample plays back in reverse.
The point (time) where reverse playback starts differs depending on the REVERSE TYPE settings.
See “ Reverse Type (P.124)” in the system parameters for details.