FFT

FFT是一款AcousticTest\u0026Measurement音乐类型的app，为您提供最新FFT官方IOS版下载。

FFTisahigh-resolutionaudioanalysistoolfortheiPhoneandiPodtouch.ItusestheFastFourierTransformtoanalyzeincomingaudio,anddisplaysaverydetailedgraphofamplitudevs.frequency.

Usethisappwiththebuilt-iniOSdevicemicrophone,orupgradetoouriAudioInterface2oriTestMicforacompleteprofessionalsolution.

***DesignedforAcousticalAnalysis

Thisapplicationhasbeendesignedforacousticswork,andsothebinshavebeennormalizedtooctaves,togetadisplaythatwillshowaflatlineforpinknoise.Youcancontrolboththelevelofgraphsmoothinganddecaytime,togetasmuchoraslittledetailasyourequire.

YoucanalsocontrolthedBresolutionofthegraph,aswellasthefrequencyrangethatisdisplayed.

***IncludesSignalGenerator

IncludedinthisappistheenginefromourGeneratorapp,whichisalow-distortion,artifact-freesignalgenerator.Thesignalgeneratorappearsasaheads-updisplaywhenyoutaptheicon,soyoucanseethegraphwhileyouadjustthegenerator.Generatesinewaves,squarewaves(withinlimits),whitenoise,andpinknoise,optionallyinpsuedo-balancedmode.Allwaveformsaregeneratedinrealtimeusinghigh-precisionalgorithms.

***CursorReadout

MoveyourfingeracrossthescreentogetacursortoreadoutexactdBlevelsandfrequencies.

***Touch-GUIControls

Useaverticalpinch-opengesturetoexpandthedBscale.

Useahorizontalpinch-opengesturetoexpandthefrequencyscale.

***GraphSmoothing

Smooththegraphbyoctave,1/3,1/6,1/12,or1/24octave.Adjustthedecaytimefrom0.5seconds,foraveryfastfluiddisplay,to8seconds,orusePeakHoldorAveragemode.Averagemodeisatrueequal-weightedaverage,whichcanruncontinuously.

***PeakTracking

TurnonPeakTrackingtohaveFFTautomaticallyfindalabelthefrequencyofthehighestpeakonyourgraph.

***TunetheParameters

SettheFFTsizefrom4096to32kpoints(dependingoniOSdevice),orselectEqualPointsPerOctavemode,forhigh-resolutionanalysis,evenatlowfrequencies.

***Calibration

FFTcomescalibratedforthetypicaliPad,iPodtouch,oriPhonemicrophone,andyoucanadjustthecalibration.MicrophonecompensationfilestailoredtoeachiOSdeviceareautomaticallyapplied.

***SaveandRecall

Whenyouranalysisiscomplete,youcansavethegraphimagetoyourphotorolltoincludeinareport,orexportthedatainanXLSfile.

***DisplayMultipleGraphs

Showarecalledgraphonthescreeninadifferentcolor.

***DifferenceMode

Useastoredgraphasabaselinethatissubtractedfromthecurrentgraphinrealtime.

***RTAorFFT?

IfyouarewonderingifyoushoulddownloadthisapporourFFTapp,checkoutourwebsite,wehaveapagedevotedtothistopic.

***OtherAudioApps

Also,checkoutourothergreataudioandacousticsapps:AudioTools,ourpremiersuiteofaudioandacousticsanalysisapps,SPL,SPLGraph,forrecordingSPLovertime,RTA,RT60,Generator,andSpeakerPop.

对FFT有什么评价可以在下方的评论中和大家分享。如果是其他问题可以直接联系FFT的官方。

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最近更新

-Bugfixesandimprovements

-SupportformoreiOSdevicesandiOSversions