Can Your CCTV Record Sound?

While most people think of CCTV (closed circuit television) cameras solely in terms of video surveillance, many modern systems can capture audio as well. Whether or not your specific system can record sound depends on a few key factors (including the camera type, microphone integration, and local laws).

In this blog, the experts at Corporate Technology Solutions — backed by over 25 years of technology experience — will break down how CCTV audio recording works.

How Does CCTV Record Audio?

Not all CCTV systems include audio recording by default. Yet, many are designed with the capability, especially modern IP (internet protocol) cameras.

Cameras that record audio do so in two primary ways:

• Built-in microphones: Some CCTV cameras come with small internal microphones that pick up sound from the nearby area. These are common for indoor cameras and certain high-end outdoor models.
• External microphones: Other CCTV systems allow you to connect an external microphone. This option typically offers better sound quality and allows for better mic placement.

The audio is then synced with the video feed and stored on the same recording device, such as a network video recorder (NVR) or a cloud-based storage system. Within your security system’s software, you should find options to enable or disable audio recording and control settings like gain or volume sensitivity.

One important thing to keep in mind is that recording audio typically has stricter legal requirements than video surveillance. Because audio surveillance laws vary by state, be sure to check your state’s consent requirements for recording oral communications. For instance, in Arizona, one party to communication must consent, whereas in California, all parties to communication must consent.

How Far Does It Record Sound?

As you can imagine, the range at which a CCTV system can record audio depends on the type and quality of the microphone.

Built-in microphones, with their small size and lower sensitivity, can only record audio about 5 to 15 feet away. Their limited range makes them a good choice for monitoring small indoor areas, like an entryway or office.

On the other hand, high-quality external microphones can capture clear audio from 30 feet or more. This wide range makes external microphones ideal for monitoring places like parking lots and garages, warehouses and industrial facilities, retail stores, and more.

Can CCTV Audio Be Compromised?

If not properly secured, audio recordings can be compromised. Just as a hacker might target a video, they might try to intercept private conversations or general sound recordings.

To protect your CCTV audio, these are some best practices:

• Use encrypted systems
• Change default passwords
• Limit remote access
• Regularly update firmware
• Restrict microphone placement
• Disable audio when not needed

Why CCTV Audio Is Worthwhile

Just as CCTV video can be an asset for your business’s security, so can audio. CCTV audio recordings give you enhanced situational awareness, better incident documentation, improved customer service monitoring, and much more.

Plus, adding an external microphone to your CCTV is easy and straightforward, so recording and storing CCTV is a quick win for protecting your property.

Located in Arizona? Let Us Help with Your CCTV Audio and Security

If your business is in the greater Phoenix area, Corporate Technology Solutions is here to help you. Our full-service solutions for CCTV, security, wireless deployments, and more make us a trusted choice for business owners in Tempe, Tucson, and beyond.

Get a free, personalized consultation for your property’s security by contacting us. Get started in Tempe, Tucson, or Phoenix today.