Musical Intervention in Non-invasive Ventilation

We plan a randomized controlled trial with 3 different arms, in ICU patients requiring NIV for acute respiratory failure : "usual care", "sensory isolation" and "sensory isolation and musical intervention".At the onset of respiratory failure, each patient will be randomized in one of the 3 arms. "Usual care" assigned patients will receive NIV according to each unit protocol; "sensory isolation" assigned patients will receive NIV associated with a mask obscuring the eyes and a noise-reducing headset."musical intervention patients" will receive a 30 minutes musical intervention during each NIV session. Respiratory discomfort will be blindly assessed before, immediately after NIV is correctly set (5 minutes), at 30 minutes, and at hours 1, 2, 3, 4, 6, 8, 12, 16, 20, 24 according to NIV session length, and at the end of NIV session during each NIV session.