Baby Monitors

Baby Monitor No Sound – 15 Ways to Fix

Sandra W Bullock

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When your baby monitor’s sound cuts out, and not working, and unable to hear your baby crying, it can be very frustrating. You feel helpless and anxious, not knowing if your little one is okay especially if you have an audio monitor where you don’t get to see visual signals as well.

Sound issues in baby monitors are a common problem and can be caused by various reasons such as technical issues, monitor settings, interference from other electronic devices, or simply old age, among other factors. Fortunately, there are steps you can take to fix the sound on your baby monitor and ensure that everything is working properly.

In this guide, I have elaborated in detail 15 ways you can try to troubleshoot your monitor sound issues.

15 Ways to Fix Baby Monitor Sound Not Working:

Adjust the sound volume on the parent unit:

Ensure that the volume is turned up on the baby monitor. To do this, follow these steps;

  1. Press the Menu setting on your display unit
  2. Use the back and front arrows to navigate to the settings tab
  3. On the settings tab, select Audio
  4. Audio settings should show you the volume level set.
  5. Adjust it by clicking the up button as indicated on the monitor manual. Some brands such as VTech VM3252 have VOL- and VOL+ on the parent unit to adjust the speaker volume. Press VOL+ to increase volume.
  6. You may need to restart the unit once you’ve adjusted the volume.

Check the mute setting:

The second fix to try is checking the mute setting, which may have been enabled accidentally. To check this:

  1. Press the Menu button on your parent unit.
  2. Navigate to Audio settings.
  3. Check if the mute option is turned on and disable it if necessary.

Note that the parent unit will automatically mute when talking to the baby unit. While muted, the screen will display “Muted” and the indicator light will turn on. However, this mute setting should cease as soon as you stop talking. While this is common for VTech, some brands do not automatically mute the baby unit when you’re talking using the parent unit.

Some brands, such as Motorola and Angelcare, do not have a mute setting. Instead, these units’ audio is turned off only if you lower the sound level. Ensure that this setting is also enabled by checking whether it’s muted or not. Check out this guide on how to mute and unmute a baby monitor correctly.

Check for interference:

Interference from other electronic devices can also cause issues with sound on your baby monitor. To reduce interference, try moving the baby unit and parent unit away from other electronic devices like cordless phones, routers, and microwaves. Read our guide with 11 suggestions to stop baby monitor interference with WiFi

Adjust VOX Sensitivity:

If your baby monitor has a VOX (voice-activated) feature, check the sensitivity level. Some monitors have a high sensitivity level by default, which can result in the sound only getting transmitted when your baby is crying very loudly.

To hear your baby at all times, adjust the VOX sensitivity to high to start with and if it gives you false alarms, you can adjust it to Medium. Some monitors such as Hellobaby have five VOX mode settings and Babysense has 3. Try adjusting these to find the most suitable one.

Check for monitor signal range:

In some cases, the sound may not be transmitted due to a weak signal between the baby unit and the parent unit. Check the monitor’s range specifications and make sure the units are within that distance. If your house has thick walls or multiple floors, you may need to move the units closer to each other or use an additional device such as a wifi extender.

Clean the microphone:

Dust and debris can settle on the baby monitor’s microphone, causing sound issues. Gently clean the microphone with a soft cloth to remove any dirt or dust that may be obstructing the sound.

Check the camera/microphone placement:

Make sure the baby unit’s microphone is not obstructed by any objects such as stuffed animals or blankets. These can muffle the sound and prevent it from being transmitted properly.

The microphone is built into the camera and should be placed facing towards your baby’s crib for optimal sound reception.

Restart the monitor:

Like any electronic device, sometimes a simple restart can solve the issue. Turn off both units of the baby monitor and unplug them from their power source. Wait a couple of minutes before plugging them back in and turning them on again.

Replace the batteries:

If the monitor is battery-operated, check and replace the batteries if they are low. Low batteries can cause sound issues or even lead to the monitor not working at all.

Check for firmware updates:

Sometimes the manufacturer may release firmware updates for your baby monitor, which can improve its functionality. Check the manufacturer’s website or reach out to their customer service team to see if there are any available updates for your specific model. Read this guide on baby monitor firmware.

Use a different frequency:

If you live in an area with a lot of wireless devices, try changing the frequency of your baby monitor. This can help avoid interference from other devices and improve the sound quality.

Check for physical damage:

Inspect the monitor for any physical damage, such as cracked or loose parts. These can affect the sound quality and may need to be repaired by a professional.

Reset to factory settings:

If none of the above solutions work, you may need to reset your baby monitor to its factory settings. Consult the user manual or contact the manufacturer for specific instructions on how to do this. Keep in mind that resetting to factory settings will erase any customized settings and preferences.

Follow these steps to reset your monitor;

  1. Turn off both the parent unit and baby unit.
  2. Unplug them from their power sources.
  3. Wait for a 3 minutes, then plug them back in.
  4. Turn on both units and see if the sound is restored.

Contact customer support:

If all else fails, reach out to the manufacturer’s customer support for assistance. They may have additional troubleshooting steps or be able to determine if there is a hardware issue with your baby monitor that needs to be fixed. You can also check online forums and reviews from other users who may have experienced similar sound issues with their baby monitors.

7 Causes of Baby Monitor Sound Issues:

Technical Issues:

The most common reason for no sound on your baby monitor is technical issues. This can range from a malfunction in the transmitting unit, the receiving unit or even the power source. It is essential to check all connections and make sure that everything is working properly.

Monitor Settings:

Sometimes, the issue may be as simple as having accidentally turned off the sound on your baby monitor. Make sure to check the volume settings and adjust them accordingly.


Another common cause of sound issues in baby monitors is interference from other electronic devices. This can include Wi-Fi signals, cordless phones, or even microwaves. Try moving your monitor away from these devices and see if the sound improves.

Low Battery:

If you are using a battery-powered monitor, then the batteries may have run out of power. Try replacing them with fresh ones and see if this solves the sound issue.

Range Limitations:

Baby monitors typically have a limited range, and once you move too far from the transmitting unit, the sound may cut out. Make sure to stay within the recommended range for optimal sound quality.

Defective Parts:

Sometimes, the issue may be with a specific component of your baby monitor, such as the microphone or speaker. In this case, it is best to contact the manufacturer for assistance or consider replacing the defective part.

VOX Sensitivity:

Some baby monitors have a VOX (Voice-Activated Exchange) feature that automatically turns the sound on when it detects noise from your baby. However, if the sensitivity is set too low, it may not pick up sounds effectively. Adjust the VOX sensitivity to see if this improves the sound.

How to know the sound is not working on baby monitor:

  1. No sound level indicator:

Check the sound level indicator on the parent unit. If there is no movement or indication of sound, then your baby monitor may not be producing any sound.

check and adjust 6-sound level indicator to fix the sound issues.
  1. No background noise: Most baby monitors have a slight background noise or white noise when turned on. If you do not hear any background noise, there may be an issue with the sound.
  2. Sound keeps cutting out: If the sound keeps cutting in and out, it may be a sign of a problem with the baby unit or interference from other electronics.
  3. Distorted or muffled sound: If you can hear sound but it is distorted or muffled, there may be an issue with the speaker on your baby monitor.
  4. You don’t hear any baby cries: If you have a video monitor, you should be able to hear your baby’s cries or noises. If you do not hear any sounds from your baby, it may be an indication of a sound issue.

If you are experiencing any of these signs, try the troubleshooting steps mentioned above or contact customer support for assistance.

Tips to prevent sound issues with your baby monitor:

  1. Check the battery levels regularly: Low batteries can cause sound issues on baby monitors. Make sure to check and replace batteries as needed.
  2. Keep distance from other electronics: Other electronics in close proximity to your baby monitor can interfere with the sound quality. Keep your baby monitor away from cordless phones, Wi-Fi routers, or microwaves.
  3. Test different frequencies: Some baby monitors have multiple frequency options. If you are experiencing sound issues, try changing the frequency to see if it improves.
  4. Keep the parent unit volume up: The parent unit may have its own separate volume control. Make sure the volume is turned up and not on mute.
  5. Check for firmware updates: Manufacturers often release firmware updates to improve the performance of their products. Check for updates and install them if available.
  6. Position the baby unit correctly: The position of the baby unit can affect sound quality. Make sure it is placed at an appropriate distance from your child and not obstructed by any objects.
  7. Use a white noise machine: If you live in a busy area or have loud neighbors, using a white noise machine can help drown out external noises and improve the sound quality on your baby monitor.
  8. Use a separate audio-only monitor: If you are still experiencing sound issues, consider using an audio-only monitor in addition to your video monitor. This can provide added assurance that you will hear any sounds from your baby.

How sound works in baby monitors:

Depending on the transmission technology, sound is transmitted from the baby unit (placed in your baby’s room) to the parent unit (carried by you) through either analog or digital signals. These signals are then converted into audible sounds that you can hear.

Every baby monitor camera(for video monitors) or baby unit(for audio monitors) have in-built microphones that pick up sounds and transmit them to the parent unit. If there is a problem with any of these components, it can result in no sound being transmitted.

Similar to digital walkie-talkies, monitors use radio waves to communicate wirelessly on a specific frequency band. Commonly, they operate on the 49 MHz, 900 MHz, or 2.4 GHz bands. However, it’s important to note that if other devices are operating on the same frequency nearby, interference may occur. This is especially true in densely populated areas or homes with numerous electronic devices.

VTech Baby Monitor Sound Not Working: How to Fix:

If your VTech monitor is not transmitting any sound signals to the parent unit, ensure that the batteries are fully charged. The absence of sound may also be caused by interference, so you need to relocate your VTech unit away from other devices that operate on the 2.4GHz frequency, such as WiFi routers.

Additionally, certain VTech models like the VM4261 may experience a failure to transmit sound signals when the VOX setting is set to high, resulting in an inability to detect low sounds in the baby’s room.

 Adjusting the sensitivity level on your baby unit and toggling the Sound Activation OFF and then back ON. If the issue continues, you can try resetting by disconnecting the battery and AC adapter for about one minute. Then, reconnect everything and conduct a test to check for any improvements.

VTech’s support has also recommended on its support page that sometimes increasing the parent unit speaker volume by pressing the VOL+ icon will enable you to hear your baby’s sound again.

VTech’s batteries drain fast and sometimes this can impact sound transmission. I recommend plugging your VTech camera and display unit to the AC instead of relying on the batteries to fix the issue of VTech’s sound cutting out constantly.

If you hear a clicking sound coming from the baby unit (camera) on your VTech baby monitor, there’s no need to worry. This is usually a temporary occurrence. When the baby unit transitions between day mode and night mode, you may hear a click sound as the infra-red (IR) on the camera turns on (for night mode) and off (for day mode).

Owlet Sound not working:

If you’re having trouble hearing your baby through the Owlet or your Owlet’s sound keeps cutting out ensure first that you have the latest updated Owlet app installed. If you’ve already done that, the issue might lie in your Owlet settings. Check that the VOX sensitivity level is not set to LOW and that the microphone is properly positioned to capture audio signals above the threshold you’ve set. I recommend first disabling the VOX mode initially, and if that resolves the issue, then adjust the VOX settings accordingly.

You can also check that you have not accidentally muted the Owlet through your parent unit or the app. If you have muted it, unmute it and check for sound output.

Lastly, if all of the above fails to fix the issue, try resetting your Owlet by unplugging it from power for a few seconds and then plugging it back in. This will often resolve any temporary glitch that might be causing the sound to not work.

Infant Optics No Sound: How to Fix:

The most likely reason for you not hearing any sound on your Infant Optics is that you’ve set the volume to too low. Just like other baby monitors, the Infant Optics also has a volume button on the parent unit. Make sure to press the “+” icon a few times to increase the volume and check if that fixes the issue. Unlike VTech Monitors with a mute/unmute button, Infant Optics does not have a mute button and the lowest volume among the 8 volume-level-settings works as the mute function.

Some users have reported that adjusting the camera of Infant Optics can affect the microphone functionality. Over time, the microphone wire within the camera may become loose due to the continuous turning and spinning as you pan the room. To restore sound to the microphone, gently rotate the camera until the mismatched microphone wiring is back in place as suggested by this user.

Hellobaby Monitor No Sound – How to fix

If your Hellobaby monitor is not producing any sound, the first step is to check if it’s turned on. Sometimes, the volume may accidentally get muted or turned all the way down. If that’s not the case, try adjusting the volume using the parent unit.

Another potential solution is to make sure that VOX mode is set to VERY LOW and unable to detect any sound. In this case, the monitor will not produce any sound until a loud noise is detected from the baby’s room.

If none of the above solutions work, it could be due to interference from nearby electronic devices. Try moving your Hellobaby monitor away from other devices and see if that improves the sound quality.

In some cases, a simple reset can also fix the issue. To reset your Hellobaby monitor, unplug it from the power source and wait for a minute before plugging it back in. Try these steps to correctly pair Hellobaby after resetting it.

If none of these solutions work, there may be an issue with the microphone or speaker on either the parent unit or the camera unit. In this case, it is best to contact Hellobaby customer support for further assistance.

Eufy baby Monitor no Sound:

If your Eufy monitor has no sound, first ensure that you have the latest Eufy Spaceview firmware installed. If it’s installed, ensure that the baby unit and the parent unit are not placed further than 70 ft or 5 thick walls. The range of Eufy Spaceview when there is interference can result in no sound.

One commonly overlooked yet easily fixable solution to Eufy’s sound issues is adjusting the volume on the parent unit. On the screen unit, you can find the volume bars. If they are set to the lowest level, simply adjust them accordingly. This simple adjustment can help resolve sound problems and improve your experience.

If you’re hearing clicking sounds coming from Eufy’s camera, they are usually caused by the IR sensor. IR sensor is a component used to detect light conditions. For example, as it gets dark, the sensor will activate the IR lights on the camera to provide night vision. Thus, if you hear clicking sounds while there is sufficient light in the room, it could be due to a faulty IR sensor. In this case, you need to download the latest Eufy firmware (v3.7.1) and follow the firmware update tutorial video.

If the above doesn’t work, try resetting both the parent and baby units. On the bottom of the camera unit, there is a small reset button which can be pressed using a pin or paper clip. Hold it for 10-15 seconds and release it to perform a soft reset. Similarly, on the parent unit, hold down the power button for 5 seconds to perform a hard reset.

If none of these solutions work, there could be a hardware issue with the Eufy monitor. In this case, it is recommended to contact the manufacturer’s customer support team for assistance and potentially get a replacement unit.

When your Eufy’s sound issues are fixed, you should be able to hear your baby clearly and can check the sound level in the room with the sound level indicator on the display.

eufy sound level indicator

You can read more on Eufy’s manual here.

Nanit Monitor No Sound: How to Fix:

The most recommended way to fix Nanit’s sound issues is to first update your Nanit app, if you haven’t. Next, check if the audio volume setting is not set to too low and if that’s not the issue, check to ensure that the Nanit camera is properly powered. Use the AC adapter that comes with the camera to make sure it is properly powered. Additionally, you should also try resetting the Nanit camera by pressing and holding the reset button for 30 seconds.

Also, check to ensure that your Nanit is connected to WiFi. Make sure that your router is within range of the camera unit and that your internet connection is stable. Poor internet connection can also affect the sound quality of the Nanit monitor.

VAVA Baby Monitor Sound not Working: How to Fix

If your VAVA baby monitor(VA-IH006) is experiencing sound issues, it could be due to a variety of reasons. Here are some possible solutions to fix the problem:

Check the volume settings on both parent and baby units

  • Make sure that the volume on both units is turned up, as well as any connected devices (such as a smartphone or tablet).
  • If you have previously adjusted the volume on either unit, make sure it is not set too low.
  • Check if the sound indicator on the parent unit is moving to indicate that sound is being received from the baby unit.

Ensure it is not muted:

Check to ensure that you have not accidentally muted your VAVA baby monitors. Make sure the parent unit is not muted by checking for a crossed-out speaker icon or “mute” displayed on the screen.

Check the battery level

If your VAVA monitor’s battery is low, it may not produce sound. Make sure both units are charged and try again.

Reset your VAVA Monitor:

  • Similar to the Eufy monitor, VAVA monitors also have a reset button on the back of the camera unit. Press and hold it for 10-15 seconds using a pin or paper clip.
  • You can also try unplugging both units from power and plugging them back in after a few minutes to see if that resolves the sound issue.

Make sure the monitor is connected properly

  • Ensure that all cables are securely connected to both units and there are no loose connections.
  • If you have a wireless VAVA monitor, make sure it is within range of the parent unit.

Check for any interference

  • Sometimes, other electronic devices or Wi-Fi networks can cause interference with your baby monitor’s sound quality. Try moving the monitor and parent unit to a different location and see if the sound improves.

Contact VAVA customer support

  • If none of these solutions work, there may be a technical issue with your VAVA baby monitor. In this case, reach out to VAVA customer support for further assistance using this email;

VAVA responded to a customer who was facing similar issues of no sound on this post

If you are hearing clicking sounds in your VAVA Baby Monitor’s camera, it is usually when it is switching from light mode to night vision mode or vice versa. As the infrared lights turn on, they may produce a clicking sound that is expected. However, if you are experiencing clicking sounds at other times or during regular use, this could be an indication of a hardware issue. In such cases, it is best to contact VAVA customer support for further assistance.


As we’ve seen in this guide, there are easy steps to follow to troubleshoot your baby monitor sound issues. If you are getting no noise at all, try any of the suggested steps above. For clicking sounds coming from the camera, don’t worry as they are due to the camera’s infrared lights turning on and off. In case none of these solutions work, don’t hesitate to reach out to customer support of the monitor brand you own.

You can also consider picking an audio-only monitor.

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