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AXISQ1615MkIINetworkCamera
VideoandAudio
•Line:SelectthisaudiosourcetouseaLineindevice,thatis,anaudiomixerformultiplemicrophonesoramicrophone
withabuilt-inamplier.
Selectthe+30dBmicrophoneboostoptiontoamplifythesignaloftheexternalmicrophoneconnectedtotheAxisproduct.
ThisoptionisnotavailablewhentheLinesourceisselected.
TheMicrophonepoweroptionprovidesDCpowerforanexternalmicrophone.Microphonepowershouldonlybeusedwith
microphonesthatrequirethiskindofpowering,thatis,electretmicrophones.Thissettingshouldnotbeenabledwhenusingadynamic
orbatterypoweredmicrophone.Foruseofaprofessionalmicrophonerequiring12Vphantompower,thereisabuilt-inpowersupply.
Note
Touseaprofessionalmicrophonerequiring48Vphantompower,youneedanexternalpowersupplyandabalanced
converter(audiotransformer)inbetween.Theinputmustneverexceed12VDC.
UsetheInputgaintocontrolthevolume(dBFullScale)oftheaudioinput.Ifthesoundistoolow,chooseahigherdB,toamplify
thesound.Ifthesoundistoohigh,choosealowerdB.TheLevelbargivesavisualrepresentationoftheaudiosignallevelindB
relativetothefull-scaleinputlevel.
•Green—thesignalisatagoodlevel.
•Yellow—thesignalisbecomingdistorted.
•Red—thesignalisdistorted.
UsetheEncodingoptiontoselectdigitalaudioencodingformat.
•AACrequiresalicenseforbothencodinganddecoding.AACistheleastcomplicatedandmostwidelyusedcodec.If
achievingthebestpossibleaudioqualityisapriority,AACistherecommendedcodectouse.AnAAClicenseisincluded
intheAxisproduct.
•G711isanunlicensedstandardcodecthatisusefulwhenintegratingaudiointoaVoIPsystem
•G726isanunlicensedspeechcodecthatismostcommonlyusedwithinthesecurityindustry.
•Opusisanunlicensedcodecthatisusedforinteractivereal-timeaudiotransmissionovernetwork.
Note
Ifrecordingaudiotoedgestorage,suchasanSDcardornetworkshare,useAACencoding.
TheSampleratedenesthenumberoftimespersecondthesoundissampled.Ahighersampleratewillprovidebetteraudio
quality,butalsorequiresagreaterbandwidth.
SettherequiredBitratedependingontheselectedencoding.Ahigherbitratewillgivebetteraudioquality.Alowerbitrate
mayhavelatencyordelay,butwillrequirelessbandwidth.
Formoreinformationaboutthesesettings,pleaseseetheonlinehelp
.
AudioOutput
AnexternalspeakercanbeconnectedtotheAudio-outconnector(anactivespeakerwithbuilt-inamplierisrequiredforthis).The
outputcanbeconnectedtoanotheramplierwithspeakers.Astereoconnectormustbeusedfortheaudioout.
ConguretheaudiooutputsettingsunderVideo&Audio>AudioSettings.
Outputgain-Controlthevolumeofthelineaudiooutput.Ifthesoundistoolow,chooseahigherdBvalue.Ifthesoundis
toohigh,choosealowerdBvalue.
AudioClips
AnaudioclipisasoundlethatcanbeplayedwheneventsoccurordirectlyfromtheLiveViewpage.Theaudioclipmustrstbe
uploadedtotheAxisproductorrecordedbyamicrophoneconnectedtotheproduct.
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