A howling suppression device includes: a subtractor (102) which generates an error signal; an adaptive filter (107) which applies filtering to the error signal; and a coefficient update control unit (108) which controls an update rate of a filter coefficient of the adaptive filter (107) and includes: a convergence analysis unit which determines whether or not a first condition that the degree of convergence of filter characteristics with respect to spatial transfer characteristics is higher than a criterion value is satisfied; a change amount analysis unit which determines whether or not a second condition that the degree of convergence has turned out to be higher is satisfied; and an update rate control unit which sets the update rate to a first rate when both the conditions are satisfied and to a second rate when at least one of the conditions is not satisfied. The adaptive filter (107) updates the filter coefficient at the update rate set by the update rate control unit.
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