When I first switched from and Android to an iPhone ($ 1000 on Amazon) I slept through all my alarms for a week. The reason? I wasn't sure. My alarms were canceled, but they didn't just wake me up. It wasn't until I woke up during one of the alarms (by accident), so I realized that my iPhone's alarm volume was ridiculously low.
That's why: iOS has two different volume controls – ringtone that controls the volume of ringtones, messages and system alerts and alarms; and the media volume, which controls the volume of the app for games, music and videos in addition to calls. Because your alarm volume is linked to your ringtone, you can inadvertently mute your alarm by changing it before you go.
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Here are some steps you can take to make sure your alarm is loud enough to wake you:
Turn It Up
To adjust the ringtone – not the media volume – go to the home screen. When on the home screen, use the volume control buttons to adjust the ring volume. You know you adjust the ringtone volume because the volume meter on the screen will be labeled "Rings".
If the volume meter on the screen is labeled "Volume" and not "Ringtone", you can have your phone set to adjust the media volume via the volume keys. To fix this, go to Settings and then Audio & Haptics. Under Rings and Warnings you will see a gear selector marked Change with buttons . Turn on this button to adjust the phone's ringtone with the volume keys.
Use your phone's silent power switch
If you sleep through your alarm, it may be because you are turning your phone's ringtone all the way before you lie down. Instead of using the volume keys to silence the phone all day, just use the silent button (above the volume keys) to turn off the phone signal. This turns off the phone's ringtone but leaves your alarm intact.
Checking Your Alarm
You can check how high your alarm will be from the alarm settings screen. To do this, open the Clock app and go to Alarm . Press Edit in the upper left corner and select the alarm you want to check. Touch Sound and then tap the alarm tone you want to use.
The alarm starts playing with the current ringtone, which is how loud your alarm will be, provided you do not change the level later. To make it harder or quieter, just use the buttons to adjust the volume while the test alarm is playing.
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