Teac SX-1 Reference Manual - Manual (Page 141)

Part VII–MIDI Sequencing
TASCAM SX-1 Reference Manual
141
Releases When enabled, notes are moved so that
their end times align with the quantize grid.
Adjust Durations When enabled, the duration of
the notes change to conform to the attack or release
quantize settings. If both attacks and releases are
being quantized, the notes will be stretched or shrunk
to fit into the nearest quantize grid.
Record Quantize Check this box to have the
quantize settings applied to all incoming MIDI notes.
This results in a recorded performance that is already
quantized.