This article is from the Keeshonden Breed FAQ, by firstname.lastname@example.org (Kimberly J. Eashoo).
Keeshonden both bark and talk, though they generally do not howl. The
alert tone of a Keeshond bark "on watch" will warn all that a stranger
is near. Some Keeshonden are more frequent barkers and should be
corrected with a "quiet" command. Rarely is a Keeshond a nuisance
barker. The Keeshond may also "talk" with a soft "aroo" or "woo-woo"
sound similar to the Malamute and Samoyed.