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AXISM50PTZNetworkCameraSeries
Aboutapplications
AboutAXISAudioVolumeDetection
AXISAudioVolumeDetectionisanapplicationthattriggersaneventiftheaudiovolumerisesaboveorfallsbelowthesetvolume
referencelevelforaspeciedtimeperiod.Thegeneratedeventcanbeused,forexample,torecordavideooralertsecuritystaff.
Considerations
Beforeusingtheapplication,considerthefollowing:
•Toavoidfalsetriggers,trydifferentgainandthresholdsettingstooptimizetheperformanceforyourenvironment.
•Adjusttheaudioinputgaintoalevelwherethebackgroundnoisecoversapproximately30-50%oftheapplication’saudio
levelgraph.ToaccesstheInputgainsetting,clicktheAudioSettingslinkontheapplicationpage.
Howtosetthedetectionthresholdandduration
Note
TodisabledetectionduringPTZoperation,selectDetectionautomaticallydisabledduringPTZmovement.
1.Tosetthedetectionthresholdtoalevelwherethegraylineisjustabovethebackgroundnoiselevel,enteravalue
ormovethesliderforThreshold.
2.Tosetthetimerequiredfortheaudiovolumetobeabovethedetectionthresholdbeforethetriggerisactivated,entera
valueormovethesliderforAboveThreshold(s).
3.Tosetthetimerequiredfortheaudiovolumetobebelowthedetectionthresholdbeforethetriggerisdeactivated,
enteravalueormovethesliderforBelowThreshold(s).
4.ClickSave.
Anactivetriggerisindicatedbyaredcolorbarinthetriggerstatusarea.Formoreinformationonhowtosetupaneventforthe
trigger,seeHowtosetupactionrulesonpage34.
AboutAXISScreamDetection
AXISScreamDetectionisanapplicationthattriggersaneventifascreamisdetected.Thegeneratedeventcanbeused,for
example,torecordavideooralertsecuritystaff.
Anactivetriggerisindicatedbyaredcolormarkerinthetriggerstatusarea.Formoreinformationonhowtosetupaneventforthe
trigger,seeHowtosetupactionrulesonpage34.
Considerations
Beforeusingtheapplication,considerthefollowing:
•Theapplicationismainlyintendedfordetectingscreamsinagenerallyquietenvironment.Thedifferencebetweenthe
backgroundsoundlevelandthescreammustbeatleast15-20dBfortheapplicationtofunctioneffectively.Consider
theproximitytotheexpectedsoundsource,thebackgroundnoiselevelandtheaudioinputgainlevelwheninstalling
theproduct.
•Adjusttheaudioinputgaintoalevelwherethebackgroundnoisecoversapproximately30-50%oftheapplication’saudio
levelgraph.ToaccesstheInputgainsetting,clicktheAudioSettingslinkontheapplicationpage.
•Iftheintervalbetweenscreamsislessthan3seconds,theapplicationregardsitasonescream.
AboutAXISRemovedObjectDetection
AXISRemovedObjectDetectionisanapplicationthattriggersaneventifanobjectinasetareaisremoved.Thegeneratedeventcan
beused,forexample,torecordavideooralertsecuritystaff.
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