Give count and category before the items

What it is

Before any item is read, speak the count and the category. A smart display that says “twelve Italian places nearby” lets the listener decide whether this is the set they wanted and whether the ear is worth lending; starting at “Luigi's on Fifth…” makes item one sound as if it might be the only item. This is auditory information scent: a preview as a decision gate, then a choice about whether to enter the expensive serial read. The preview is not there so people can remember more items. It is there so they can refuse the tape.

Why it happens

Without a header, the listener cannot estimate cost or allocate attention. When the first item arrives, set size is unknown and category is unknown; people have to bet “maybe this is the only one” or “maybe there are thirty.” Count supplies a stopping rule and a cost estimate; category (Italian, unread, delayed) supplies scent: is this still the tray I asked for. It is an advance organizer for auditory material. The gate sits before the expensive item-by-item read: wrong scent, and the move is to filter or look at the screen, not to discover at restaurant six that the cuisine was wrong. The preview costs a second or two and buys admission rights to the whole tape.

Studying it

Contrast “start at the first proper name” with “count + category, then items.” Dependent measures: whether people stay to hear items, switch to narrowing, or switch to the screen; and whether they act on item one before they know the set size. Independent variables: N, whether the category was correct. Probe when the preview ends and before items start — “do you still want to hear them” — and you are measuring the gate.

A wrong category (“Italian” for a whole food court) turns scent into a lure. Run that condition on its own; do not fold it into “no preview.”

Where it stops holding

When N is one, “I found one result” is pomp; speaking the name is cleaner. An urgent gate change (“now B12”) skips the catalogue header. A daily “my three shipments” is a known set; the category can drop. A preview written as an advertisement makes the gate itself a burden. Right scent still does not licence reading without limit: once the set is large, ask for a constraint instead of continuing the tape.

Applying it

• First sentence of every list turn: number + organizing dimension + whether to continue or narrow. Proper names do not speak before the preview is done.
• Pick the category from a dimension listeners actually decide on (cuisine, unread, delay), not an internal database tag.
• Leave an interruptible gap after the preview so a refusal can land.
• How to check: sample the first two seconds of list turns. Starting on a proper name means the preview is missing. Count how often people interrupt during item one — often they never got a chance to refuse the list.

Related

• Same group: M3.03.1 Audition cannot scan, so spoken lists are expensive · M3.03.3 Beyond a few items, switch to filtering
• Nearby: M1.02 Memory load of screenless interaction · M3.08 Difficulty of reading long lists aloud · M2.01 Information density of prompts
• Search terms: preview count and category before items · information scent · advance organizer