Is it permitted to make non-musical noise (e.g. knocking on a door) on Shabbat?

ShabbatSound Production

Synopsis

The Mechaber rules that producing sound from a musical instrument is forbidden, but non-musical knocking (e.g. on a door) is permitted. The Rif, Rambam, and Rosh all rule like Rava that only musical sound is forbidden, contra Ulla who forbids all sound production.

Early Acharonim
Late Acharonim
Lenient
Strict
Lesser cited
Major authority

Discussion

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