Audio Forensics let operators search recorded footage faster and more dynamically than just passively listening during playback, according to IndigoVision.
Identifying an incident that’s happened outside the camera’s field of view, such as a broken window or a shout, provides another way to find evidence.
Incidents are located using an audio search filter and results displayed in a thumbnail timeline, allowing operators to search through hours of footage in seconds. Once an event is identified, ‘double-clicking’ the thumbnail will start video and audio playback from that point.
Chad Wright, general manager of Naskam Security, an Australian-based national video and alarm monitoring centre, said: “The ability to rapidly search recordings for audio incidents makes the IndigoVision system significantly more responsive and adaptable to the Policing industry.
“These useful tools help law enforcement agencies to speed up their investigations and provide tamperproof audio and video evidence for use in court.”
Quality audio is important for applications such as law enforcement interviews.
IndigoVision’s claims its “fully synchronised audio ensures perfect lip sync and its unique guarantee not to drop any audio or video frames means nothing is missed. This gives integrity to audio-video evidence since it is less susceptible to interpretation in court.”
Other uses of audio include intercoms, public help points, covert surveillance and message broadcast.