This app was mentioned in 4 comments, with an average of 1.00 upvote
AudioGuru | Audio Manager | 4.2 猸愶笍 | Free with IAP | Varies with device |
> Easily set your volume levels with home screen volume control widgets. Manually apply volume presets straight from the widgets or schedule them for a time of day. Optionally also schedule your ringer, alerts and alarm ...
^(Legend: |馃彔: Family Library| 鈻讹笍: Play Pass|)
|Feedback|PunyDev|
There's an app called "AudioGuru" that can set volumes on a schedule. You could have it set alarm volume an hour or two before your alarm normally goes off.
Link.
Edit: a quick play store search shows this would probably work too;
https://play.google.com/store/apps/details?id=volumelock.vlocker
Been using AudioGuru for years. Works great. https://play.google.com/store/apps/details?id=com.jupiterapps.audioguru
Used AudioGuru widget for a long time. Play Store