The microphones can act as a ‘backup’ which still provides intelligence as to what is happening in a particular area.Ĭonversely, the absence of sound can also be used to indicate anomalies. In poor lighting conditions, if the camera lens is obscured or an incident occurs outside of the field of view of the camera, audio can be used to provide important information in lieu of visual confirmation. This is particularly important if the person is active in an area where the camera view is restricted. For example, if a person enters a restricted area motion detection combined with audio picking up the sound of footsteps could trigger an alert. Beyond the typical applications of audio inĪudio can be combined with other sensors to enhance surveillance solutions. Correctly assessing the situation will save time and manpower in the long run. For example, laughter and play can look similar to aggression leading to false alarms and wasted resources.īy actively ‘listening’ to the scene, audio detection technology – with the assistance of analytics applications – can provide the additional information that adds context and alert security teams, so that the correct action can be taken if necessary. This may sound straight-forward, but it can be difficult to distinguish different emotions using video alone. The last use case is particularly important, as the footage can help security personnel know whether or not to intervene before an incident occurs. Video surveillance has traditionally been used to monitor for incidents in progress, spot people of interest or look for indications of whether unwanted behaviour is escalating. Audio can help the decision-making process There are many situations where audio helps to support security teams in detecting and managing activity and deciding on an appropriate response. Some organizations might have been put off looking at audio capture due to regulations, but these don’t need to be a barrier. It can also be valuable in situations where video surveillance is not optimized – such as in poor lighting conditions – or even allowed. It can add a critical layer to surveillance, providing additional elements which give context to a scene or even alerts security teams to activity occurring outside of the field of view. Audio adds rich information to the experience, ensuring that everyone involved is on the same page.įrom a surveillance perspective, audio capture is a useful tool for crime detection, protection and forensic investigation. Even though you could read the facial expressions from other attendees and may be able to understand a few words, you’re only getting half of the story. Imagine joining an important video conference call where all the microphones were muted.
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