Review
Take a closer look at Simpler's Playback Modes and Slice By Modes.
Simpler: Playback Modes
Note: Other hardware samplers and those in other DAWs may operate differently.
Simpler: Slice By Modes
In Slice Mode, Simpler automatically chops the audio into pieces, allowing you to trigger each slice using MIDI notes. How the samples are slices depends on the Slice By Mode selected.