
Owning five Elkhounds in a suburban house I can tell you it is important to be aware that Spitz do love to bark, but also there is absolutely no reason for them to be noisy if trained not to be.
The trick is knowing they are hard wired for this (like knowing that Collies will chase cyclists and joggers) and train accordingly.
What has worked for me is to never allow the pup the opportunity for excessive barking. when the door bell goes or what have you allow one or two barks and physicaly if need be prevent any more and tell them to shush in a calm and quiet voice and praise for compliance. Out in the garden if they bark at the neighbours, passersby, birds, cats or whatever be systematic about getting them straight indoors again, use a trailing lead if need be. They will soon learn that their fun will be shortlived if they bark (use the shush command first). I have also found that at a distance whenre they are out of reach a squirt bottle works wonders as a remote device. Spray straight in the face, and in the brief lul, give your command again. Spitz will not be frightened by this but will find it vaguely unpleasant.
I can never understand how some owners of any breed can just stand there while their dog barks and barks, it would just drive me bonkers, and shows very little consideration for others.