Yes, you can just sample into any Audi track slot. And then you can use Convert to load the recorded sample into the Simpler.
Convert Audio Options.
Converting the audio to Simpler adds the audio clip into a new Simpler device.
Converting the audio to a Drum Pad adds the audio clip into a new Drum Rack on the first pad.
You can also convert audio into MIDI notes using the Audio to MIDI methods: Harmony-MIDI, Melody-MIDI, or Drums-MIDI.
Harmony-MIDI – The pitches in a polyphonic audio clip are identified and converted into MIDI notes, and the audio is replaced with an Instrument Rack containing a piano preset (which can be swapped out for any other instrument as needed). This option works best for harmonic instruments like guitar and piano.
Melody-MIDI – The pitches in a monophonic audio clip are identified and converted into MIDI notes, and the audio is replaced with an Instrument Rack containing a synth preset (which can be swapped out for any other instrument as needed). This option works best for vocal clips or soloed instrument samples.
Drums-MIDI – The rhythms from unpitched percussive audio are identified and converted into MIDI notes, and the audio is replaced with a Drum Rack containing a 606 Core Kit preset (which can be swapped out for any other drum kit as needed). This option works best for recorded breakbeats or beatboxing clips.
Note that the Audio to MIDI options are not available in the Live Intro edition.