What is a baby voice recorder?

A baby voice recorder is a device that captures a young child's speech so it can be kept and listened to years later. Most parents try to do this with a phone, which means recording only on the occasions they remember to. Baby Voice Recorder is worn by the child and is already listening, so the first words are not the ones that get missed.

How is this different from recording on my phone?

A phone records when an adult decides to press record. First words rarely arrive on cue — they happen while you are cooking, driving, or holding something else. A worn recorder means the clip already exists by the time you realise it mattered.

Is Baby Voice Recorder a baby monitor?

No. A baby monitor streams a room so you can check on a sleeping child right now. Baby Voice Recorder keeps short clips of what your child said, so you can hear them again in ten years. Different job, different device.

Does it record everything happening in the room?

No. Filtering runs on the device and only your child's voice is kept. Conversations around them are not stored.

Who can hear the recordings?

Only you. Clips are encrypted and tied to your account. You can delete an individual clip, or your entire account, at any time.

Roughly 0 to 4 — from first laughs and babble through to full sentences. The vocabulary tracking is most useful between about 9 months and 3 years.

How much does it cost, and when can I buy one?

It is still in development, so there is no price yet. Waitlist members hear first, get early access, and get a launch-day perk.

Can this tell me if my child's speech is delayed?

No. Baby Voice Recorder is not a medical or diagnostic device, and it does not assess development. It keeps a record of what your child said. If anything about your child's speech concerns you, please talk to your pediatrician or a speech-language professional.

Can I compare my child with other children?

No, and we don't plan to add that. There is no percentile and no score. The app only shows your own child's words over time. The normal range at this age is very wide, and comparison rarely helps anyone.

When Do Babies Start Talking? The Real Ranges

Learn when babies usually say their first word, start babbling, and combine words — and when a phone call to your pediatrician makes sense.

"My baby is almost a year old and still isn't saying a real word."

We have typed something close to that into a phone at eleven at night, too. If that is about where you are tonight, you are in the right place. Nothing is wrong with you for looking this up. Most babies land somewhere inside a wide window, not on a single date.

What you'll find on this page

What sounds usually come first, and when
Why the "normal" range is wider than it looks
Three things you can try tonight
The signs that are worth a phone call

The short answer

Most babies say a first real word around their first birthday. The common window is about 10 to 15 months. Two-word phrases often show up near age 2. These are ranges, not deadlines. A few months of difference is usually normal.

Baby lying on a plaid blanket with mouth open, mother sitting close nearby — Photo by Keira Burton on Pexels

The timeline at a glance

Age	What's common	The range (and why)
0–3 months	Coos, turns toward voices, cries differently for different needs	Most guides agree here.
4–6 months	Babbling starts. Laughs and plays with sounds	Windows are wide on purpose.
6–9 months	Repeated syllables, like "ba-ba-ba"	Researchers call this canonical babbling. Studies count it differently, so estimates vary.
9–12 months	Waves, points, says "mama" or "dada"	Health officials list these at 12 months. Speech-and-hearing researchers put first words as early as 6–11 months.
12–15 months	First real words beyond mama/dada	Health officials list 1–2 words by 15 months. The speech-and-hearing researchers' window runs to 17 months.
15–18 months	Word count grows	Health officials list 3 or more words at 18 months.
18–24 months	Many kids hit a word spurt. Two-word combos near age 2	Speech therapists watch for about 50 words by 24 months. Speech-and-hearing researchers put 50 words in the 18–23 month window.
2–3 years	Short sentences. Back-and-forth chat	Health officials list about 50 words at 30 months — six months after the speech-therapy line.

These windows come from health officials, speech-and-hearing researchers, and speech therapists. The guides do not line up perfectly, and that is normal.

Stage 1: Before words (0 to 6 months)

Talking starts long before first words.

Your baby coos and gurgles.
She turns toward your voice.
She cries differently when she is hungry, tired, or uncomfortable.
She quiets or smiles when you talk.

One thing to try tonight: Talk back when she coos. Pause, then coo again. This teaches the back-and-forth of conversation.

What to do now: Enjoy this stage. If she does not react to sound or your voice by around 6 months, ask her doctor about a hearing check. That's the flag health officials list for this age.

Stage 2: Babbling (6 to 12 months)

Babbling usually starts around 4 to 6 months.
By 6 to 9 months, many babies string syllables together: "ba-ba-ba."
Researchers call this canonical babbling. A 2026 review pooled the studies on it.
What they found: the measured amount shifts with how each study counts it. The language a baby hears matters too.
Researchers also track early sounds in babies at risk for speech-motor conditions.

One thing to try tonight: Copy your baby's sounds, then pause. Many babies "answer."

What to do now: Keep talking and copying. If babbling has not started by around 10 months, mention it at the next visit. That's the line on the age charts speech therapists use.

Stage 3: First words (12 to 18 months)

Gestures come first. Waving and pointing show up around 12 months.
"Mama" and "dada" usually land near the first birthday.
Words beyond that: health officials list 1–2 by 15 months. Speech-and-hearing researchers give a window up to 17 months.
Researchers often count words with a parent checklist called the CDI. A 2026 review covers its use across many conditions.

One thing to try tonight: Name things as you use them. "Sock." "Cup." "Dog."

What to do now: If she has no real words by around 15 months, bring it up with her doctor. Speech-and-hearing researchers and health officials both treat 15 months as a good time to ask.

A mother holding her baby on a couch, wrapped in warm blankets at home — Photo by Helena Lopes on Pexels

Stage 4: Putting words together (18 to 36 months)

Many kids combine two words around age 2. "More milk." "Daddy go."
Health officials list at least 2 words together at the 2-year visit.
Speech-and-hearing researchers put word-combining earlier: 18 to 23 months.
Speech therapists watch for two-word combos by 24 months.
Same skill, three guides, about six months apart.

One thing to try tonight: Add one word to hers. She says "dog," you say "big dog."

What to do now: If she is not putting two words together by around 30 months, ask for a speech evaluation. That's the point where speech therapists say to get her checked.

Three things you can try tonight

Talk back when she coos. When your baby makes a sound, pause, then make one back. This teaches the rhythm of conversation.
Copy her sounds. Repeat the babble she just made, then wait. She may "answer" you.
Add one word. If she says "dog," say "big dog." You are showing her how words combine.

But the baby at daycare is already talking

Comparing kids is hard. It is also normal.

Milestone charts show when most kids do something. They are not deadlines. A child can be "on track" by one guide and "worth watching" by another. That gap is real. It is why we show ranges, not single numbers.

Hearing two languages at home? Assessing multilingual kids means looking at all their languages. Specialists have a guide for that.

What to do now: Use the charts as a map, not a scorecard. If you feel uneasy, trust that feeling and ask.

When it's worth making the call

She isn't reacting to sounds or your voice by around 6 months. Ask her doctor for a hearing check. Hearing specialists say hearing problems are one of the first things to rule out.
She has no real words besides "mama" or "dada" by around 15 months. Health officials say to act early rather than wait.
She isn't putting two words together by around 30 months, or has far fewer than 50 words at age 2. Speech therapists call this late language emergence — "not talking yet," in plain words.
You are worried, even if the checklist looks fine. You know your child best. Call your pediatrician or your state's early intervention program. The evaluation is free for kids under 3, and no referral is needed.

What to do now: Pick one sign that fits your child. Make the call this week. Early help is free in every state, and you do not need a diagnosis to start. Health officials' Act Early guide for parents lists who to contact in your state.

You don't have to wait for proof

Many late talkers catch up on their own. The reason to ask early is not because something is surely wrong. It is because help works best when it starts early. You are not overreacting. You are doing exactly what doctors and speech therapists want you to do.

About Baby Voice Recorder

This magazine is published by the team behind Baby Voice Recorder. It is a small recorder and parent app. It automatically picks up the words your child says. It saves them as short clips. You can see how their vocabulary changes week by week. It's a keepsake and a record, not a screening tool. It isn't out yet — join the waitlist if you'd like to hear when it is.

Where these numbers come from

Health officials revised their milestone checklists in 2022. The old list marked what about half of kids could do. The new list marks what most kids — roughly 3 in 4 or more — can do. It also added 15- and 30-month checklists.

The guides still disagree with each other. "50 words" sits at 18–23 months in the speech-and-hearing researchers' guide, at 24 months for speech therapists, and at 30 months on the health officials' checklist.

Research measures vary too. The babbling review found results shift with the counting method. Researchers also track early sounds in babies at risk for speech-motor conditions. A 2026 review covers the parent word checklist used across many conditions. And an international survey of specialists covers how to assess multilingual kids.

Hearing specialists note that hearing problems are one of the first things to rule out.

Can anyone predict which late talkers catch up? Not reliably. A government evidence review found that screening tools can't reliably predict which toddlers with delays will keep struggling. That review also found too little evidence to screen every child routinely. It covered kids without concerns.

Pediatricians can screen language right in the office, and researchers describe the tools they use. Speech therapists publish their own chart of sounds and words by age. Health officials run the Act Early program, which helps parents know when to ask for an evaluation.

What about early talking and IQ? We found no solid evidence for it in the sources we reviewed. "Early = gifted" and "late = behind forever" are both unsupported.

What we still don't know:

Why timing varies so much from child to child. Even measuring babbling depends on the method, researchers found.
Whether early talking predicts anything about later ability.
How to tell ahead of time which late talkers will catch up on their own. No one can predict this reliably.

Bayvo Magazine is published alongside Baby Voice Recorder, a wearable voice recorder for babies and toddlers that keeps the words a child actually says. It is still in development.

Bayvo Magazine gathers what public health agencies, speech therapists, and published research say. Every claim here is checked against the sources it links to, but this article is not individually reviewed by a clinician. It is not medical advice and it is not a diagnosis. If something worries you, talk to your child’s doctor.