# Day 44: Sounds

> Reacting to loud sounds and turning toward a voice: what hearing looks like at six weeks, the follow-up test that can't wait, and why you need a quiet hour too.

- Series: Your second month, day by day (https://chorevia.com/learn/second-month), day 44 of 120, week 6
- Canonical URL: https://chorevia.com/learn/second-month/day-44
- Last reviewed: 2026-10-20
- Publisher: Chorevia (https://chorevia.com)
- Cite as: Chorevia. "Day 44: Sounds." Last reviewed October 20, 2026. https://chorevia.com/learn/second-month/day-44

This guide is general education that summarizes published research and guidance from groups like the American Academy of Pediatrics, the CDC, and the WHO. It isn’t medical advice, and every child develops on their own timeline. Your pediatrician knows your child; if something feels wrong, call them. In an emergency, call 911.

Your baby's hearing was mature at birth. What's changing now is what they do with it.

## Heart

Reacting to loud sounds is on CDC's 2-month list ([CDC](https://www.cdc.gov/act-early/milestones/2-months.html)). By about one month, babies may look or turn toward familiar sounds and voices ([AAP](https://www.healthychildren.org/English/ages-stages/baby/Pages/Developmental-Milestones-1-Month.aspx)). When you walk in talking and your baby's eyes slide your way, that's hearing turning into attention, and it's for you.

## Head

The turn is slow. In a small lab study, most of 21 alert newborns turned their heads toward a sound played to one side, but the turn took a median of 2.5 seconds to start ([Muir & Field, 1979](https://pubmed.ncbi.nlm.nih.gov/487883/)). Give them time before you decide they didn't hear. The flinch you still see at a slammed door is the Moro reflex, which fades around 2 months ([AAP](https://www.healthychildren.org/English/ages-stages/baby/Pages/newborn-reflexes.aspx)).

One piece of housekeeping: if your baby didn't pass the newborn hearing screen, they need a full test by an audiologist before 3 months of age, and if hearing loss is found, starting support before 6 months helps babies communicate better ([CDC](https://www.cdc.gov/hearing-loss-children-guide/parents-guide/newborn-hearing-screening.html)). Three months is a few weeks away now.

## Body

About the sound in the room. White noise can help babies settle: in a 1990 trial of 40 newborns, 80% fell asleep within 5 minutes with white noise, versus 25% without ([Spencer et al., 1990](https://pubmed.ncbi.nlm.nih.gov/2405784/)). But keep sound machines quiet and away from the crib; at full volume, some exceed safe noise levels ([Hugh et al., 2014](https://pubmed.ncbi.nlm.nih.gov/24590753/)).

## Try today

### Rattle sound hunt

- **Time:** 1 to 2 minutes
- **From the guide:** [Rattle sound hunt](https://chorevia.com/learn/1-month#rattle-sound-hunt)

1. Hold a sturdy rattle off to one side of your baby's head, out of view ([CDC](https://www.cdc.gov/act-early/milestones/2-months.html)).
2. Shake it gently and watch for a glance or a pause, then keep waiting; the turn can take several seconds ([Muir & Field, 1979](https://pubmed.ncbi.nlm.nih.gov/487883/)).
3. Switch sides.
4. When they find it, bring it into view, smile, and name it: "That's the rattle."

**Make it work:** Keep sounds gentle, since loud noises make babies startle ([AAP](https://www.healthychildren.org/English/ages-stages/baby/Pages/newborn-reflexes.aspx)). No reaction on some tries is normal.

## Watch for

- **Normal:** no turn on some tries, especially when tired. **Tell your pediatrician** if your baby doesn't react to loud sounds ([CDC](https://www.cdc.gov/act-early/milestones/2-months.html)).
- **Normal:** a hearing screen that was passed in the hospital. **Book the full test before 3 months** if your baby didn't pass it ([CDC](https://www.cdc.gov/hearing-loss-children-guide/parents-guide/newborn-hearing-screening.html)).
- **Normal:** squeaks, sighs, and grunts, even in sleep ([AAP](https://www.healthychildren.org/English/ages-stages/baby/Pages/How-Your-Newborn-Behaves.aspx)). **Call 911** for new grunting, wheezing, or whistling sounds with each breath, or a baby struggling to breathe ([Nationwide Children's](https://www.nationwidechildrens.org/conditions/health-library/newborn-warning-signs)).

## For you

A quiet hour, again. Six weeks of a baby's noise, a monitor's noise, and your own thoughts at 3 a.m. is a lot of sound. Hand the baby to someone, close a door, and let the hour be silent. Not productive. Silent.

Tiredness that rest doesn't touch is different. The CDC lists overwhelming tiredness among the urgent warning signs in the year after a birth; if that's what you have, get care and say you were recently pregnant ([CDC](https://www.cdc.gov/hearher/maternal-warning-signs/index.html)).

If you're the partner: this is the hour to give. Take the baby out of earshot, or outside, and don't bring them back early.

## Sources

- Centers for Disease Control and Prevention. "Milestones by 2 Months." Learn the Signs. Act Early., 2026. https://www.cdc.gov/act-early/milestones/2-months.html
- American Academy of Pediatrics. "Developmental Milestones at 1 Month Old." HealthyChildren.org, 2026. https://www.healthychildren.org/English/ages-stages/baby/Pages/Developmental-Milestones-1-Month.aspx
- Muir D, Field J. "Newborn infants orient to sounds." Child Development, 1979. https://pubmed.ncbi.nlm.nih.gov/487883/
- American Academy of Pediatrics. "Newborn Reflexes." HealthyChildren.org, 2022. https://www.healthychildren.org/English/ages-stages/baby/Pages/newborn-reflexes.aspx
- Centers for Disease Control and Prevention. "Newborn Hearing Screening." 2024. https://www.cdc.gov/hearing-loss-children-guide/parents-guide/newborn-hearing-screening.html
- Spencer JA, Moran DJ, Lee A, Talbert D. "White noise and sleep induction." Archives of Disease in Childhood, 1990. https://pubmed.ncbi.nlm.nih.gov/2405784/
- Hugh SC, Wolter NE, Propst EJ, et al. "Infant sleep machines and hazardous sound pressure levels." Pediatrics, 2014. https://pubmed.ncbi.nlm.nih.gov/24590753/
- American Academy of Pediatrics. "How Your Newborn Behaves." HealthyChildren.org, 2021. https://www.healthychildren.org/English/ages-stages/baby/Pages/How-Your-Newborn-Behaves.aspx
- Nationwide Children's Hospital. "Newborn Warning Signs." 2023. https://www.nationwidechildrens.org/conditions/health-library/newborn-warning-signs
- Centers for Disease Control and Prevention. "Urgent Maternal Warning Signs and Symptoms." HEAR HER campaign. https://www.cdc.gov/hearher/maternal-warning-signs/index.html