Thanks for that info and choosing the Apple Support Communities. If I understand correctly, you need to recover a recently deleted voice memo. To do this, you would need to restore a recent backup from when you still had the voice memo. But this will remove all your current content, so make sure to make a backup of your iPhone before restoring a backup.
Restore your iPhone, iPad, or iPod touch from a backup
How to back up your iPhone, iPad, and iPod touch
Import photos and videos from your iPhone, iPad, or iPod touch