My puppy is already past sixteen weeks: is it too late?

No, it is not too late, but the pace changes. With the sensitive window closed the brain treats new sounds as potential threats, so you will need more repetitions, smaller steps and more time to reach the same result. The method stays identical: exposure below threshold, paired with something good. The only difference is the patience required. If the animal already shows a marked, entrenched fear, it is worth working with a vet trained in behaviour before going it alone.

Do noise recordings really work, or is live sound better?

The two play different roles and complement each other. Recordings let you control the volume to the last notch and present sounds you cannot make on demand, like fireworks or an out of season thunderstorm. Their limit is that they lack the vibration, smells and movement that come with a real sound. That is why a recording is the first step, not the last: once the animal accepts the recorded sound at high volume, the move to live sound and then to the street is still necessary.

How often and for how long should I run these sessions?

Little and often is best. Sessions of two or three minutes, once or twice a day, achieve far more than one long, tiring session a week. A young animal saturates quickly, and a session pushed past its limit often ends on a negative note that undoes the rest. The practical rule is to always finish while the animal is still calm and curious, not when it is tired or annoyed.

Does this apply to cats too, or only dogs?

It applies to both, with some adjustments. Cats have an even earlier sensitive window, closing around seven or eight weeks, so the work often begins already in the environment where the kitten was born. A cat's fear signals are more subtle, and fleeing to a hiding place is its typical response. With cats it matters even more to always leave an escape route and never to force the animal to stay near the source of the sound.

The first months30 minLevel: BeginnerUpdated on August 20, 2026

Getting a puppy or kitten used to household and city noises

A gradual plan to help a puppy or kitten accept the sounds of home and street: controlled exposure, positive associations and reading fear signals early.

Audience: Pet owners, Breeders
Species: Dog, Cat
Scope: Valid everywhere, Italy, European Union

What you need before you start

Un cucciolo o un gattino ancora nella finestra sensibile, indicativamente sotto le sedici settimane di vita
Premietti molto appetibili e piccoli, tagliati in pezzi grandi come un chicco di mais
Un altoparlante o un telefono per riprodurre registrazioni a volume regolabile con precisione

A dog that shakes at fireworks or a cat that vanishes under the bed at every vacuum cleaner was rarely born that way: far more often it learned to be afraid because, in its first months, those sounds arrived too loud, too suddenly and with nothing good to balance them. The sensitive window, which in dogs closes around twelve to sixteen weeks and in cats even earlier, is the period when the brain decides what counts as normal and what counts as a threat. Whatever enters that window calmly stays harmless for life; whatever frightens the animal during this phase leaves a mark that later takes months of work to correct. This guide is about using that precious time well: not to shield the puppy from noise, but to introduce it slowly, one sound at a time, so the animal files it away as part of the world rather than as an alarm.

Why the sensitive window matters more than anything else

In the first months a puppy's nervous system is wired to accept almost anything it meets calmly. It is a survival mechanism: a young animal has to learn quickly which things belong in its environment. Once the window closes the rule flips, and anything new is treated as potentially dangerous until proven otherwise. That is why the same noise met with indifference at eight weeks can terrify the very same animal at eight months.

One rule holds the whole guide together: the sound must always stay below the threshold that frightens. Exposure that produces fear does not habituate, it sensitises, which teaches exactly the opposite of what you want. Slow, clean progress beats a shortcut that undoes weeks of work in thirty seconds.

Making an inventory of the sounds to introduce

Before you start it is worth listing the noises the animal will genuinely meet in life, sorted by how controllable they are. Some you produce at home and can dose freely; others come from the street and you can only anticipate them with recordings; others again are seasonal and rare, and precisely for that reason need preparing well in advance.

Categories of noise and the best way to tackle each in the first months. Priorities shift depending on whether you live in the city centre or the countryside.
Category	Examples	How to expose it
Appliances	Vacuum, hairdryer, food processor, dishwasher	Live, switched on at a distance and moved closer slowly
Household sounds	Doorbell, bags, keys, shutters, television	Live, woven into the daily routine
Traffic and city	Horns, motorbikes, sirens, roadworks, buses	Recordings first, then short walks
Rare events	Fireworks, thunderstorms, hunting shots	Recordings only, well ahead of the season

Mark which categories are most urgent for where you live. A puppy that will grow up in a flat above a busy road needs to work on traffic long before one living in an isolated house. Recording the real environment around your home, with the phone held at an open window, gives you the single most useful piece of material there is.

The step by step method for a single sound

Every sound is tackled with the same sequence. The first time, pick an easy noise, for example the vacuum switched off and standing still in the middle of the room, and only move on once the previous step is calm. Never jump two levels in one session.

Present the sound at minimum intensity
Switch the source on far away or play the recording at a barely audible volume. The aim is for the animal to notice the noise but not to worry about it, carrying on with whatever it was doing.
Immediately pair it with something good
The exact moment the sound starts, make treats, play or affection appear. The puppy must learn that this noise predicts good things. The correct order is sound first, reward second, never the other way round.
Watch the response before raising intensity
If it stays relaxed, eats and moves freely, you are ready for the next level. If it stiffens, stops eating or tries to move away, you have already gone too high and need to step back.
Increase one notch at a time
Raise the volume a little, or move the source one step closer, or add a second light sound. One change per session, so you always know what to blame if a reaction appears.
Finish while it is still calm
End every session on a positive note, before the animal tires or gets saturated. Three good minutes are worth more than ten minutes pushed to the limit. Little and often beats a lot and rarely.
Record the level reached
Note which sound, at what intensity and with what response. At the next session start one notch below the last calm point to confirm it, then carry on.

Reading fear signals before they become panic

The method only works if you know when to stop, and to stop in time you have to spot stress while it is still small. Waiting for the puppy to shake or bolt means you missed the useful moment several seconds earlier. The early signs are subtle and worth learning by heart.

It stops eating the treat it happily took a moment before.
It licks its nose or yawns without being sleepy, classic signs of unease.
It stiffens its body, lowers its tail or flattens its ears.
It breaks off play and stares fixedly towards the source of the sound.
It seeks contact with you insistently, or the opposite, it pulls away.
In cats, dilated pupils, a bottled tail or a dash for a hiding place.

At the first of these signs, drop the volume or move the source away straight away, without commenting. Bring the situation back to a point where the animal starts eating and moving again, and treat that as your new ceiling for the day. Over time the threshold rises on its own, but you set it by watching the animal, not the clock.

Taking the work outdoors without wrecking it

Recordings prepare the ground, but the real street is another matter: sounds arrive unpredictably, all at once and mixed with smells and movement. The move outdoors has to be handled with the same gradual care as the work at home, otherwise a single bad outing can wipe out weeks of progress.

Pick the first spot away from heavy traffic, for example a quiet side street at a calm time of day.
Stay at a distance from the source of the noise and move closer only if the animal is relaxed and takes treats.
Keep the first outings very short, a few minutes, and end them before tiredness sets in.
Always carry treats and keep pairing new sounds with something good, just as you did at home.
If a sudden noise startles it, walk away calmly without running and without pulling, and restart from a safe point.
Increase how close you get to traffic only after several calm outings, never forcing the pace in a single day.

Frequently asked questions

My puppy is already past sixteen weeks: is it too late?: No, it is not too late, but the pace changes. With the sensitive window closed the brain treats new sounds as potential threats, so you will need more repetitions, smaller steps and more time to reach the same result. The method stays identical: exposure below threshold, paired with something good. The only difference is the patience required. If the animal already shows a marked, entrenched fear, it is worth working with a vet trained in behaviour before going it alone.
Do noise recordings really work, or is live sound better?: The two play different roles and complement each other. Recordings let you control the volume to the last notch and present sounds you cannot make on demand, like fireworks or an out of season thunderstorm. Their limit is that they lack the vibration, smells and movement that come with a real sound. That is why a recording is the first step, not the last: once the animal accepts the recorded sound at high volume, the move to live sound and then to the street is still necessary.
How often and for how long should I run these sessions?: Little and often is best. Sessions of two or three minutes, once or twice a day, achieve far more than one long, tiring session a week. A young animal saturates quickly, and a session pushed past its limit often ends on a negative note that undoes the rest. The practical rule is to always finish while the animal is still calm and curious, not when it is tired or annoyed.
Does this apply to cats too, or only dogs?: It applies to both, with some adjustments. Cats have an even earlier sensitive window, closing around seven or eight weeks, so the work often begins already in the environment where the kitten was born. A cat's fear signals are more subtle, and fleeing to a hiding place is its typical response. With cats it matters even more to always leave an escape route and never to force the animal to stay near the source of the sound.

What to do next

Use the sensitive window to present everyday sounds one at a time, always below the threshold that frightens and always paired with something good. Raise the intensity one notch at a time, learn to read the first signs of unease so you can stop in time, and move to the street with the same gradual care as the work at home. Little and often, always finishing while the animal is still calm, and noting your progress so you never undo it.