What is the halakhic status of hearing shofar sounds from within a pit or cave?

Rosh HashanahShofar Laws

Synopsis

Those inside a pit or cave fulfill their obligation when hearing direct shofar sound. Those outside fulfill only if hearing the direct sound (not echo); echo does not fulfill the obligation.

Early Acharonim
Late Acharonim
Lenient
Strict
Lesser cited
Major authority

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