Learn Swedish: Allt detta springande och pipande måste sluta nu! - All this running and beeping must stop now!

They are present participles acting as uncountable nouns. In Swedish, you can add -ande (or -ende) to a verb to create a neuter noun that describes a continuous or repetitive action. Here, they translate directly to the English concepts of 'running' and 'beeping'.

Why do we use allt detta instead of all den or alla dessa?

Because present participles used as nouns, like springande and pipande, are always neuter (ett) words and are usually treated as uncountable. Therefore, the determiners must take their neuter singular forms: allt and detta.

Does using this -ande noun form give a specific feeling to the sentence?

Yes, when used with phrases like allt detta (all this) or ett evigt (an eternal), these nominalized participles often carry a tone of exasperation. It emphasizes that the action is ongoing, highly repetitive, and annoying to the speaker.

Why use sluta for 'stop' here instead of stanna?