Axis V5914 - Audio Input

AXISV5914PTZNetworkCamera
VideoandAudio
•Simplex–NetworkCameraspeakeronly-AudioistransmittedfromaclienttotheAxisproductandcanbeplayedby
aspeakerconnectedtotheproduct.TotransmitaudiousingtheLiveViewpage,theTalkandMicrophoneonbuttons
mustbothbeactive,seeAMCAudioControlsonpage12.
•Simplex–NetworkCameramicrophoneonly-Audiocapturedbytheproductmicrophoneistransmittedfromthe
Axisproducttooneormoreclients.
Tosettheaudiomode,gotoVideo&Audio>AudioSettingsandselectthedesiredmodefromtheAudiomodedrop-downlist.
AudioInput
Note
IfusingunbalancedLineinamonocontactmustbeused.Signalontipandgroundonsleeve.
SelectExternalMicrophonetouseanexternalmicrophoneorLinetouseaLineindevice,e.g.anaudiomixerformultiple
microphonesoramicrophonewithabuilt-inamplier,asaudiosource.
Note
•WhenselectingLinethe3.5mmaudioinputconnectorisenabled.TousetheXLRconnectorsforlinelevelinput,select
Microphone,setMicrophonepowertoOff,anddeselect+30dBmicrophoneboost.
•WhenselectingMicrophonetheXLRaudioinputconnectorsareenabled.Tousethe3.5mmconnectorformicrophone
input,setMicrophonepowerto5.0V.
Selectthe+30dBmicrophoneboostoptiontoamplifythesignaloftheexternalmicrophoneconnectedtotheAxisproduct.
Microphoneboostoptionisusefulwhenamicrophone'svolumeistoolowandyouwanttoincreaseit.Thisoptionisnotavailable
whentheLinesourceisselected
TheMicrophonepoweroptionprovidesDCpowerforanexternalmicrophone.
Microphonepowershouldonlybeusedwithmicrophonesthathavenobattery.Thissettingshouldnotbeenabledwhenusinga
dynamicorbatterypoweredmicrophone.
UsetheInputgaintocontrolthevolumeoftheaudioinput.Ifthesoundistoolow,chooseahigherdBvalue,toamplifythe
sound.Ifthesoundistoohigh,choosealowerdBvalue.TheLevelbargivesavisualrepresentationoftheaudiosignallevelindB
relativetothefull-scaleinputlevel.
•Green—thesignalisatagoodlevel.
•Yellow—thesignalisbecomingdistorted.
•Red—thesignalisdistorted.
UsetheEncodingoptiontoselectdigitalaudioencodingformat.
•AACrequiresalicenseforbothencodinganddecoding.AACistheleastcomplicatedandmostwidelyusedcodec.If
achievingthebestpossibleaudioqualityisapriority,AACistherecommendedcodectouse.AnAAClicenseisincluded
intheAxisproduct.
•G711isanunlicensedstandardcodecthatisusefulwhenintegratingaudiointoaVoIPsystem
•G726isanunlicensedspeechcodecthatismostcommonlyusedwithinthesecurityindustry.
•Opusisanunlicensedcodecthatisusedforinteractivereal-timeaudiotransmissionovernetwork.
Note
Ifrecordingaudiotoedgestorage,suchasanSDcardornetworkshare,useAACorOpusencoding.
TheSampleratedenesthenumberoftimespersecondthesoundissampled.Ahighersampleratewillprovidebetteraudio
quality,butalsorequiresagreaterbandwidth.
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