How to record your child's voice before it changes

Ask any parent of a teenager what they miss, and it's rarely a look. It's a sound. The way they said “lellow” instead of yellow. The serious little voice that explained how dinosaurs work. The giggle that took over their whole body.

Voices change slowly and then all at once, and you don't notice it happening. One day you realise you can't quite remember how they sounded at three. Photos don't help — a picture of a small child mid-sentence is silent. Even video tends to catch the big occasions, not the ordinary chatter in the back of the car, which is the part you'll actually want back.

A few seconds of audio, saved now and then, fixes that. You don't need good equipment or a quiet room. You need a phone, a moment, and somewhere to put the recording so it doesn't vanish into a camera roll of 14,000 other things.

There's no right list, but these are the recordings families tell us they're gladdest to have. Pick one or two that fit your child right now. For more ideas tied to a specific year, the age two and age five guides are good places to start.

• Don't announce it. “Say something for the recording!” gets you a frozen stare. Just start recording while you're already talking.
• Short is fine. Twenty seconds of real chatter beats five minutes of a performance.
• Car journeys, bath time and bedtime are where the best talking happens. Keep your phone within reach.
• Add a line of context. Where you were, what set them off. In ten years you won't remember why they were shouting about a cat.
• Record the same thing each year. The same question on every birthday — “what's your favourite thing about being this age?” — makes a lovely set.

You don't need a plan or a schedule. Next time they say something that makes you laugh, or launch into a long explanation of something, record it. That's it. If they've just said something brilliant and you missed the recording, type it out word for word — our guide to the funny things kids say has more on catching those.

Over a year, those small recordings add up to something you can't get any other way: the sound of your child growing up. And when you want to gather a year of memories into one place, they can go into a keepsake alongside everything else the family has written.

Phone storage fills up, phones get dropped, and old voice memos are the first thing people delete to make room. If a recording matters, move it somewhere safe soon after you make it, with a date and a line about what it is. That way it survives the next phone upgrade, and you can actually find it again when they're grown. It's also worth thinking about who should be able to hear it. A recording of your child chatting is a private thing. Keep it somewhere the family can reach, but the rest of the world can't.

It's easy to think only about recording your child, but the voices around them matter too. A grandparent reading a bedtime story, a parent singing a lullaby, an older sibling explaining a game — these are part of the soundtrack of their childhood, and one day your child will want to hear them as much as their own small voice. Ask the family to record a little each now and then. A few minutes of the people who loved them, talking to them, is a remarkable thing to be able to give a grown-up child.