How do I change the volume level of audio alerts?

 To adjust the volume level of alerts in ForeFlight tap on MORE > SETTINGS > then toggle the switch "Speak All Alerts" ON and OFF. This will speak an audio message that says "ForeFlight audio alerts are now active" or "ForeFlight audio alerts are now disabled."

When the alert is playing you can press the Volume Up or Volume Down toggle on the side of the iPad or iPhone to adjust the volume level of the alert.