Two-way audio cameras do more than just record sound. They also allow you to communicate with people through the camera.
Security cameras with two-way audio have become increasingly popular, especially among smart camera users. I’ve also noticed growing demand for this feature. In fact, some potential customers specifically ask me whether the camera they’re about to purchase supports two-way communication.
In the past, adding two-way audio to a security camera system often required a manual setup using additional accessories, such as an external microphone and speaker. However, things are much simpler today. Many modern security cameras already have both a microphone and speaker built in, so you can listen and talk directly through the camera using your smartphone.
Characteristics of Cameras with Two-Way Audio Features
Almost all modern smart security cameras come with two-way audio.
If you’re out and about and notice a security camera with a nearby power outlet, there’s a good chance it’s a smart camera with two-way audio. Take a closer look, and you may notice several tiny holes on the camera housing. These are usually the speaker openings that allow sound to come out of the camera.
One thing to keep in mind: if you’re standing near a camera like this, be careful what you say. Your voice may be picked up by the camera’s built-in microphone, especially if audio recording is enabled.
How Two-Way Audio Security Cameras Work?
The way the How Two-Way Audio security camera works is to receive and emit sound.
The camera owner can say something from the camera application installed on the cellphone. Usually, to talk from a cellphone, users can press the microphone button on the application. Some can only be pressed once, some need to be pressed while you speak. Depends on the security camera and application you use. For example, on the EZVIZ camera, I only press the microphone button once to speak into the camera. Meanwhile, if I use the Cam720 I have to press the microphone button and hold it when I want to talk to the camera.
The maximum distance that sound coming out of the camera can generally be heard clearly is no more than 3 meters.
The security camera brands that I know of have a Two-Way Audio feature:
- EZVIZ
- IMOU
- Cam720
- V380 Pro
- Dahua
- Hikvision
- Reolink
- Eufy
- Tapo
- Ring
- Foscam
Two-way audio is generally included as a built-in feature, so you don’t need to pay an additional subscription fee to use it.
If you’re planning to buy a security camera with this feature, check the product specifications or description to confirm whether it supports two-way audio. Look for the term Two-Way Audio in the product details.
Two-Way Audio Security Cameras and Privacy Considerations
The use of cameras with the Two-Way Audio feature may be a concern in some regions, especially in Europe. They are very strict about privacy. An example is the Flock camera in the United States. The Flock camera is considered disturbing because it continuously takes photos of vehicle numbers, even though your vehicle is not a stolen vehicle.
If you install a camera in a public area, you should provide a sign that the camera is installed, what the camera records and so on.
This is a way to avoid privacy demands.
However, if you install the camera on your own property such as a house, you don’t need to put up any signs. Because property like your house is not a public area.
Frequently Asked Questions (FAQs)
Is Two-Way Audio Feature Available On Analog Cameras?
Yes. Currently, there are analog cameras equipped with the Two-Way Audio feature. An example is the Hikvision analog camera. For Two-Way Audio on Hikvision cameras to work, you must also use a DVR that supports it.
Is the Two-Way Audio Feature Free?
Yes, the Two-Way Audio feature is a free feature provided by the camera manufacturer.
Is Using a Two-Way Audio Camera Breaking the Law?
No. However, if you install a Two-Way Audio camera in a public area, you should provide a sign that the installed camera is recording sound.
How Far Away Can Sound Be Heard from a Camera?
In general, audio from the camera is clearly audible at distances of up to about 3 meters.
Conclusion
Security cameras with the Two-Way Audio feature are very helpful.
You can hear conversations from people around who are near the camera. You can also directly carry out conversations from the camera. In my experience, installing a camera with the Two-Way Audio feature is intended so that a child who works abroad can chat directly from the security camera without calling. However, it is recommended that listeners must be close to the camera and not be more than 3 meters away so that the sound coming out of the camera can be heard clearly.
That is the discussion about how security cameras that have the Two-Way Audio feature work. Hopefully it can be useful.