Yes, some security cameras can record sound, but not all models include built-in audio features. Whether a security camera records sound depends on the hardware (microphone), local laws, and how the system is configured.
If you’ve ever watched security footage with video only, you might’ve wondered if security cameras record sound at all. And it’s a good question because it’s not always obvious.
In this guide, we’re going to cover what types of security cameras are capable of recording sound for residential and commercial complexes, when they should or shouldn’t, and how to know what’s right for your setup (especially if you’re installing a security system in Australia).
Let’s get this part out of the way. A security camera needs a microphone in order to record sound. That might sound obvious, but not every model comes with one, especially older or budget-friendly models focused purely on video surveillance.
If you’re unsure whether your existing camera has audio capability, check the product specifications or look for a small pinhole near the lens (that’s usually the mic). Or, you can just look back at some footage and check is there is sound being recorded.
You’ll generally find sound recording features in the types of security cameras listed below. But just because a security camera can record sound, doesn’t mean it’s actually enabled. This usually has to be configured during the setup, and in some cases, disabled by default due to legal restrictions.
Many models include built-in mics and offer two-way audio features.
Some professional grade setups, like Hikvision or Dahua, allow external mic input.
These often offer live audio and the option to talk back (intercom-style)
Regulations & Legislations
This is a big one that often gets overlooked. In Australia, there are laws around audio surveillance that are stricter than video. The Surveillance Devices Act 2007 (NSW) regulates how and when sound can be legally recorded.
So even if your security camera has the ability to record sound, that doesn’t mean you’re automatically allowed to use that feature. It’s why a lot of security system installers will disable sound recording by default, unless the client requests it and understands the legalities.
You cannot record private conversations with the consent of all parties involved
Video-only surveillanceis generally acceptable for commercial and residential use, provided it doesn’t infringe on personal privacy (like bathrooms or changerooms)
Audio recording in public-facing spaces (e.g., front entry of a store) may be legal but still required signage and transparency.
Like most things in the security industry, there’s no perfect answer. Just pros, cons, and what works best for your property.
If your security system supports audio, here’s how to check or change your settings:
1.
Access the camera settings via app or desktop interface
2.
Navigate to audio or microphone settings
3.
Toggle sound recording on or off
4.
Check volume levels and clarity via live feed.
5.
Make sure storage can handle the additional data
Most modern security systems will allow you to configure sound settings on a per-camera basis. If you’re not sure, this is usually something your security technician can walk you through during setup or via a maintenance call.
If you’re a business owner in Sydney and looking to improve your security system with advanced security cameras, then contact us! We have over 21+ years experience servicing the locals of Sydney with their security needs.
