Suzy can listen to your child and if any crying is detected she can activate her Soothing music and lights automatically. You can enable Auto-soothe on Cry Detection in the BleepBleeps app in Settings.
Please note: Auto-soothe cannot be enabled simultaneously with Nighttime Audio. If Suzy is playing music herself she cannot detect any other noise, plus she can't enable her soothing music as there is music already playing constantly! If you wish to use Auto-soothe make sure Nighttime Audio is not enabled.