Axis 0647-001 ~ EOL Axis Q2901-E User Manual

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AXISQ2901-ETemperatureAlarmCamera

VideoandAudio

Simplex—NetworkCameramicrophoneonly-AudiocapturedbytheproductmicrophoneistransmittedfromtheAxisproductto

oneormoreclients.

Tosettheaudiomode,gotoVideo&Audio>AudioSettingsandselectthedesiredmodefromtheAudiomodedrop-downlist.

AudioInput

SelectMicrophonetouseanexternalmicrophoneorLinetouseaLineindevice,e.g.anaudiomixerformultiplemicrophones

oramicrophonewithabuilt-inamplier,asaudiosource.

Selectthe+30dBmicrophoneboostoptiontoamplifythesignaloftheexternalmicrophoneconnectedtotheAxisproduct.

ThisoptionisnotavailablewhentheLinesourceisselected

Selectthemicrophonesensitivitylevel(High/Low)dependingonthesoundlevelinthemonitoredarea.Forexample,iftheAxis

productisinstalledinanoisyenvironment,trysettingtheinputsensitivitytoLow.

TheMicrophonepoweroptionprovidesDCpowerforanexternalmicrophone.Microphonepowershouldonlybeusedwith

microphonesthathavenobattery.Thissettingshouldnotbeenabledwhenusingadynamicorbatterypoweredmicrophone.

Touseaprofessionalmicrophonerequiring48Vphantompower,youneedanexternalpowersupplyandabalanced-unbalanced

converter(audiotransformer)inbetween.

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.

Note

Ifrecordingaudiotoedgestorage,suchasanSDcardornetworkshare,useAACencoding.

TheSampleratedenesthenumberoftimespersecondthesoundissampled.Ahighersampleratewillprovidebetteraudio

quality,butalsorequiresagreaterbandwidth.

SettherequiredBitratedependingontheselectedencoding.Ahigherbitratewillgivebetteraudioquality.Alowerbitrate

mayhavelatencyordelay,butwillrequirelessbandwidth.

Formoreinformationaboutthesesettings,pleaseseetheonlinehelp

AudioOutput

ConguretheaudiooutputsettingsunderVideo&Audio>AudioSettings.

Outputgain-Controlthevolume(dBFullScale)ofthelineaudiooutput.Ifthesoundistoolow,chooseahigherdB.Ifthe

soundistoohigh,choosealowerdB.

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Axis 0647-001 ~ EOL Q2901-E Temperature Alarm Network Camera 19mm 0647-001