- region->set_length (tmap.frame_at_quarter_note (region->quarter_note() + new_length_qn) + 1 - region->position(), 0);
- region->set_length (tmap.frame_at_quarter_note (region->quarter_note() + new_length_qn)- region->position(), 0);
+ region->set_length (tmap.sample_at_quarter_note (region->quarter_note() + new_length_qn) + 1 - region->position(), 0);
+ region->set_length (tmap.sample_at_quarter_note (region->quarter_note() + new_length_qn)- region->position(), 0);