A woman asks: In the audible prayers, should she recite aloud like men if there are no men around her and no one can hear her, or should she recite quietly in both audible and silent prayers?

A woman does not recite aloud in prayer, neither in the audible prayers nor in the silent ones.

Even if there is no one with her, because she is instructed to lower her voice.

And it may be said that if there is no one with her, and the prayer is one where recitation is aloud, then reciting aloud may make her more active, like in night prayer.

It may be said that there is no harm in it, because there is nothing prohibited in that.