Third in a series

Often overlooked in discussion about surveillance and security systems is the subject of audio recording.

There are many reasons you may want to record audio in addition to video. For example, audio is particularly helpful in cases where additional evidence is required or an individual cannot be identified based solely on the recorded image.

When audio is paired with video, additional evidence is gained. Voices, names, language, accents and directives are examples of the information that can be gleaned from audio recordings.

In general, it’s relatively easy to add sound recording to an IP system. In fact, some IP cameras come with a built-in microphone. On the other hand, adding audio recording to an analog system can be costly and complicated.

The law

Before you decide if you want to record audio, however, you first need to find out if you can legally do so.

States laws govern where and how people can be video recorded. Laws vary, but all states stipulate that certain locations, such as restrooms, where there is a reasonable expectation of privacy, are off limits.

Laws governing audio recording are more restrictive. These laws also vary by state. In many states (including Illinois), consent of both parties is required and notification must be given. Before recording audio, be sure to check with an attorney about specific laws that may apply.

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