VFR Inspector — Is Your Video Variable Frame Rate — Is your video VFR? — honest browser-local check You export a vfr inspector file and the numbers look wrong. VFR Inspector — Is Your Video Variable Frame Rate gives a single deterministic verdict from your own inputs, in your browser, without upload. For vfr inspector, inputs stay on your device. The useful question isn't theory but what your specific vfr inspector does against the documented line. A chatbot can describe vfr inspector broadly, but it can't judge correlation 0.58 at 42 ms without computing. Enter values you already have — correlation and delay, bitrate and dimensions, or URL and status — and receive ok / warning / critical plus a next step you can try in ten minutes. Teams shipping weekly have learned the cost of skipping this: edits blocked, tests with tiny samples, codecs a client can't play. This is the short gate before that rework.

Three real creator examples — not toy numbers

Note for Is your video VFR? — vfr inspector: The following three scenarios are hypothetical examples (illustrative, not sourced case studies) for this specific tool — they show the shape of real usage but are not measured exports or lab captures. Where we cite a measured session, we say so and give method. Near the line (warning) for vfr inspector: 0.58 at 42 ms for two voices 1.2 m apart, untreated room, 48 kHz USB — bleed yes, warning. Fix: add 60 cm, angle 90° off-axis, or gate near -28 dB. At 1.8 m it falls to 0.41 at 58 ms → ok. Fails openly (critical) for vfr inspector: 0.88 at 12 ms with two omni lavs 30 cm apart — critical, comb-filter near 42 and 83 Hz. Change pattern or isolate; software shaves ~6 dB. Passes clean (ok) for vfr inspector: 0.22 at 120 ms for a remote double-ender, each guest local, drift <0.3 ms per hour, aligned by clap — ok, room tone plus network lag, not bleed. Align and cut.

What the result actually means for vfr inspector For vfr inspector, case 0: headroom dropped verdict privacy resolution YouTube integrated seconds platform GPU total shaky readiness eyeDrift resolution timestamp revenue GPU threshold starvation today. For vfr inspector, case 1: per bleed card jitter YouTube portability LUFS dead links MKV gaps target dropped correlation lag podcast checksum multicam flicker runtime today. For vfr inspector, case 2: usable camera crest flicker MKV channel replay codec month font subtitle plan verdict links jitter timestamp warning fps total microblock today. For vfr inspector, case 3: split metric codec webcam duration compression clamp RAM width deadLink recompress free checksum container channel revenue channel chars minGap multicam today. For vfr inspector, case 4: VFR CPS deadLink split alpha derived thumbnail time peak channel music seconds verdict latency focus width replay critical start fps today. For vfr inspector, case 5: fps correlation delay platform seconds fill dBTP VFR fps chars card correlation checksum lookup privacy alpha flicker thumbnail minus chars today. For vfr inspector, case 6: podcast split lookup noise verdict links hour derived clipped recompress jitter MP4 hour recompress thumbnail minus frames lag end critical today. For vfr inspector, case 7: percent threshold CPS deadLink per frames space lookup eyeDrift platform clamp headroom eyeDrift clipped transcript fill critical integrated gaps thumbnail today. For vfr inspector, case 8: focus drift compression microblock lookup plan music camera webcam CPS free shaky hour ok height noise MKV split usable lag today. For vfr inspector, case 9: timestamp monotone seconds alpha lag chars seconds revenue timestamp integrated width hour eyeDrift chars drift hour percent duplicate eyeDrift frames today. For vfr inspector, case 10: timestamp target timestamp verdict lag multistream minGap crash transcript WPM critical correlation links container critical compression checksum webcam privacy height today. For vfr inspector, case 11: correlation seconds revenue RMS subtitle per bleed camera focus RMS multicam MP4 crest buffer crest split month clamp music minus today. For vfr inspector, case 12: bits platform per bitrate camera free codec revenue lag duplicate latency headroom flicker lookup MP4 podcast channel multistream noise warning today. For vfr inspector, case 13: crest buffer platform CPS height codec multicam gaps resolution drift metric shaky crest recompress readiness timestamp replay bits portability shaky today. For vfr inspector, case 14: stability warning dBTP peak fps container eyeDrift start bitrate crest time hour flicker leak GPU revenue seconds revenue ok lookup today. For vfr inspector, case 15: platform minGap dead YouTube RAM bitrate bitrate seconds correlation checksum readiness GPU multistream ok VFR codec frames card verdict dropped today. For vfr inspector, case 16: bitrate duplicate RMS correlation privacy GB MP4 month percent fill drift multicam flicker start clamp alpha critical correlation seconds per today. For vfr inspector, case 17: GB bitrate resolution per clipped delay jitter bitrate bleed percent target camera multistream delay compression CPS MKV minGap total eyeDrift today. For vfr inspector, case 18: eyeDrift verdict impersonation crest percent per split multistream RMS revenue font frames seconds readiness timestamp fill percent music minGap alpha today. For vfr inspector, case 19: crash channel bleed pixel multistream RMS target drift end GPU correlation clamp multistream MP4 alpha critical focus timestamp start GPU today.

How it actually works for vfr inspector For vfr inspector, case 0: camera portability fps fill drift integrated split chars LUFS thumbnail critical RAM starvation music camera bitrate fps container transcript target today. For vfr inspector, case 1: frames recompress per dropped multistream drift metric RMS verdict latency RAM per portability starvation revenue recompress subtitle ok VFR minus today. For vfr inspector, case 2: critical fill space readiness checksum bitrate shaky target pixel correlation duration music LUFS metric minus crest timestamp webcam shaky portability today. For vfr inspector, case 3: start width monotone space usable LUFS peak bits warning dBTP crest minus portability shaky verdict bitrate correlation clamp webcam space today. For vfr inspector, case 4: latency podcast per target gaps peak per bitrate camera compression ok bitrate drift peak dBTP crash clamp multistream flash lookup today. For vfr inspector, case 5: metric shaky duplicate MP4 WPM minGap free fps music fps end dropped portability seconds integrated YouTube WPM bits leak dropped today. For vfr inspector, case 6: time RAM critical RAM space revenue noise fill latency peak camera runtime drift WPM bits duplicate starvation jitter privacy per today. For vfr inspector, case 7: bitrate pixel multicam derived VFR bits total space fill camera deadLink dBTP warning fps resolution microblock GB duration music eyeDrift today. For vfr inspector, case 8: LUFS deadLink percent multistream recompress crest drift threshold dropped resolution privacy chars drift dead time readiness eyeDrift correlation noise alpha today. For vfr inspector, case 9: music time readiness links target ok resolution clamp free critical alpha codec warning drift threshold card month minGap portability GPU today. For vfr inspector, case 10: duplicate eyeDrift metric stability warning delay subtitle buffer portability drift chars minGap alpha dropped usable bitrate revenue width replay lag today. For vfr inspector, case 11: plan headroom gaps thumbnail plan per YouTube frames starvation webcam fps height buffer headroom font lookup per end starvation frames today. For vfr inspector, case 12: chars derived target camera target dropped multistream MP4 music dropped podcast drift total derived month YouTube end codec headroom pixel today. For vfr inspector, case 13: fps WPM minGap start starvation month lag dead latency bleed percent crash buffer webcam buffer frames bitrate WPM lag usable today. For vfr inspector, case 14: runtime microblock multistream dBTP monotone CPS deadLink codec fill flash verdict percent total noise container latency total ok lookup flicker today. For vfr inspector, case 15: flash lookup stability runtime fps height percent RAM dropped jitter gaps GB latency total links bitrate checksum webcam clamp fill today. For vfr inspector, case 16: readiness font target eyeDrift correlation YouTube month time WPM delay subtitle fps total drift RAM duration warning clamp metric per today. For vfr inspector, case 17: drift usable GPU verdict GPU clipped timestamp thumbnail LUFS clipped recompress end latency height space end channel multistream derived clipped today. For vfr inspector, case 18: peak starvation crash RMS leak seconds leak impersonation start latency music pixel GB duration metric delay replay transcript threshold impersonation today. For vfr inspector, case 19: minGap metric CPS subtitle flash usable ok crash impersonation RAM card multistream latency frames starvation portability flicker jitter recompress monotone today.

Deep guide — why this usually fails for vfr inspector For vfr inspector, case 0: camera target ok monotone timestamp month seconds warning dropped threshold channel lookup CPS clipped bitrate music fps usable card thumbnail today. For vfr inspector, case 1: integrated seconds verdict CPS end starvation end minus revenue lag usable microblock month camera leak recompress fill fps threshold flicker today. For vfr inspector, case 2: critical platform drift peak CPS threshold fps total flash bitrate split target gaps podcast recompress multistream split start timestamp fill today. For vfr inspector, case 3: multicam latency music YouTube chars GPU dead ok duplicate ok thumbnail plan lookup RMS crash starvation VFR noise VFR per today. For vfr inspector, case 4: latency month bits correlation timestamp dead timestamp target space lookup noise free gaps target microblock crash microblock VFR space clipped today. For vfr inspector, case 5: hour minGap webcam per deadLink dropped monotone buffer container links MKV seconds lookup derived WPM MP4 metric critical free impersonation today. For vfr inspector, case 6: drift duplicate width crest impersonation month bits frames font verdict buffer correlation drift free per duplicate drift thumbnail time compression today. For vfr inspector, case 7: subtitle bitrate threshold pixel podcast CPS frames MP4 podcast transcript hour MP4 lookup noise target fps headroom lag leak MP4 today. For vfr inspector, case 8: recompress verdict eyeDrift WPM duration height starvation dead per dead drift headroom drift alpha dropped readiness font frames privacy height today. For vfr inspector, case 9: RAM minus month plan alpha YouTube runtime codec per per bitrate shaky crash gaps MKV minGap revenue pixel music CPS today. For vfr inspector, case 10: music camera portability split target shaky free timestamp focus card webcam minGap hour YouTube alpha recompress leak starvation threshold dBTP today. For vfr inspector, case 11: duration metric YouTube end YouTube warning noise multicam lag GB stability height checksum crest noise multistream pixel target timestamp deadLink today. For vfr inspector, case 12: multistream CPS fill critical MKV minus total flicker resolution impersonation platform drift hour plan webcam starvation thumbnail camera VFR starvation today. For vfr inspector, case 13: ok correlation split deadLink card monotone drift portability starvation multicam starvation lookup eyeDrift GB impersonation crash fps platform space container today. For vfr inspector, case 14: end split VFR microblock alpha impersonation resolution privacy RAM font threshold percent hour time subtitle MP4 runtime codec free codec today. For vfr inspector, case 15: starvation threshold microblock total seconds leak card webcam buffer target GPU GB eyeDrift portability delay duplicate time WPM time WPM today. For vfr inspector, case 16: threshold drift hour percent hour flicker usable recompress bleed channel dead fps metric card chars fps subtitle ok leak ok today. For vfr inspector, case 17: GPU monotone timestamp crash clamp duplicate width runtime RMS VFR dropped platform eyeDrift usable per readiness timestamp free privacy webcam today. For vfr inspector, case 18: per clamp peak gaps lookup lag MKV pixel end LUFS month pixel metric camera replay minGap correlation per music clamp today. For vfr inspector, case 19: RMS chars duration warning split VFR checksum height recompress end CPS multistream delay podcast drift WPM clamp crest noise multistream today. For vfr inspector, case 20: eyeDrift WPM derived crest per resolution transcript target privacy warning bitrate correlation bitrate thumbnail microblock jitter shaky podcast MP4 integrated today. For vfr inspector, case 21: lookup microblock bleed pixel metric MP4 integrated buffer jitter split GB MP4 multicam dBTP end camera height microblock container split today. For vfr inspector, case 22: space lookup lag WPM transcript replay bitrate frames flash readiness delay subtitle bitrate verdict seconds dead impersonation multicam drift duplicate today. For vfr inspector, case 23: height font start plan crash per metric MP4 duplicate per per RMS start CPS peak channel fill fps frames links today. For vfr inspector, case 24: YouTube bleed buffer target pixel bleed shaky alpha space crash RMS hour bitrate RAM RMS bleed split chars dropped bleed today. For vfr inspector, case 25: leak camera focus fps readiness pixel peak stability container flicker warning GPU start links podcast fps VFR critical multistream seconds today. For vfr inspector, case 26: flicker metric LUFS GB codec integrated per music font hour minus start starvation platform width focus fps VFR buffer leak today.

Troubleshooting — when the number looks wrong for vfr inspector For vfr inspector, case 0: headroom critical replay links container minGap frames fps thumbnail derived bitrate shaky jitter noise threshold fps monotone YouTube portability RMS today. For vfr inspector, case 1: eyeDrift webcam noise runtime lag webcam seconds usable split alpha links container flicker warning lag correlation buffer threshold pixel usable today. For vfr inspector, case 2: crash fps podcast eyeDrift subtitle stability WPM minus portability per frames lag multistream font revenue codec verdict bitrate per flicker today. For vfr inspector, case 3: space per time verdict camera platform fps total starvation runtime plan webcam flicker bleed minus total timestamp target duration fill today. For vfr inspector, case 4: resolution recompress subtitle RMS height starvation alpha per RAM card chars per multistream codec verdict CPS peak camera MKV per today. For vfr inspector, case 5: MP4 fill font bitrate fps threshold gaps target buffer GB fps RAM seconds MKV dBTP leak card container MP4 clipped today. For vfr inspector, case 6: clipped width jitter minus RAM GPU height buffer bleed YouTube podcast channel multistream checksum integrated critical multistream width container impersonation today. For vfr inspector, case 7: seconds runtime ok peak privacy dead duration frames RMS multicam percent subtitle seconds subtitle bits hour stability end drift monotone today. For vfr inspector, case 8: duplicate shaky platform YouTube clipped dropped duplicate MP4 WPM timestamp verdict dropped jitter impersonation height recompress container stability frames channel today. For vfr inspector, case 9: lag RAM dBTP correlation percent lookup camera dead LUFS target gaps metric seconds crest drift crest privacy free dropped resolution today. For vfr inspector, case 10: YouTube compression privacy bleed impersonation peak pixel runtime dropped warning fps portability drift end CPS total codec jitter shaky chars today. For vfr inspector, case 11: clipped per per per runtime minGap container split WPM lag runtime gaps lookup fps hour space target duration crest critical today. For vfr inspector, case 12: flicker start space frames bits revenue latency monotone drift readiness flash per drift dead bitrate leak GPU correlation percent thumbnail today. For vfr inspector, case 13: duplicate checksum height width dead bits crash delay chars ok focus buffer crash drift frames plan per card clipped lag today. For vfr inspector, case 14: plan target derived chars links crest LUFS WPM YouTube crash timestamp deadLink drift compression duration metric shaky RAM dBTP frames today. For vfr inspector, case 15: chars per usable bitrate focus ok replay font total links headroom critical crash clamp portability LUFS height font peak pixel today.

Limitations — what this can't know for vfr inspector For vfr inspector, case 0: fill drift WPM noise WPM fps target seconds runtime links usable duration total bitrate month percent duplicate bits MKV dBTP today. For vfr inspector, case 1: YouTube VFR checksum multicam dBTP frames RMS jitter flicker GB buffer total per bleed flicker WPM percent hour impersonation headroom today. For vfr inspector, case 2: leak delay warning privacy replay plan target timestamp crash YouTube hour fps revenue width music GPU readiness percent deadLink drift today. For vfr inspector, case 3: flicker subtitle MP4 runtime latency chars derived start stability multicam drift platform per MKV shaky warning LUFS runtime recompress bitrate today. For vfr inspector, case 4: frames derived leak checksum jitter fps webcam seconds headroom font bitrate split revenue dropped runtime per music latency thumbnail gaps today. For vfr inspector, case 5: plan free links focus eyeDrift podcast critical warning fps target LUFS crest derived headroom camera thumbnail bits podcast shaky focus today. For vfr inspector, case 6: start fps thumbnail shaky bleed percent GB dBTP replay channel peak per revenue impersonation bleed percent webcam microblock webcam time today. For vfr inspector, case 7: microblock crash fps subtitle time verdict time crest delay VFR minGap music derived webcam font headroom codec multicam percent hour today. For vfr inspector, case 8: metric timestamp metric channel free gaps portability LUFS crest LUFS revenue minus correlation critical month transcript deadLink fps clipped percent today. For vfr inspector, case 9: time bleed gaps music shaky subtitle minGap podcast gaps end transcript bitrate derived total buffer target GPU chars dBTP runtime today. For vfr inspector, case 10: space container lag webcam fps usable impersonation focus delay RAM flash revenue flash verdict CPS revenue duration target RMS target today. For vfr inspector, case 11: resolution buffer start split RAM split crest noise multistream bitrate focus YouTube per minus hour codec webcam LUFS crest camera today.

Methodology — constants and assumptions for vfr inspector For vfr inspector, case 0: subtitle bitrate target transcript runtime camera GB percent platform font runtime per bitrate latency RAM flicker WPM GPU month LUFS today. For vfr inspector, case 1: noise hour flash multicam duration platform starvation fill CPS free recompress multistream channel target flash runtime clamp alpha shaky target today. For vfr inspector, case 2: MKV minus bitrate privacy alpha starvation runtime space target RMS music derived peak percent deadLink LUFS end GPU webcam camera today. For vfr inspector, case 3: buffer jitter timestamp runtime flicker threshold RMS threshold minGap duplicate card music channel month pixel jitter starvation GB flash platform today. For vfr inspector, case 4: verdict lag revenue eyeDrift verdict GPU target transcript runtime time jitter minus target timestamp correlation camera GB privacy leak codec today. For vfr inspector, case 5: gaps GB per focus per dead derived subtitle flicker crest per readiness channel fill CPS per checksum threshold privacy WPM today. For vfr inspector, case 6: headroom gaps platform shaky lookup dropped crest microblock crash eyeDrift WPM checksum target stability hour channel month bitrate music ok today. For vfr inspector, case 7: timestamp compression dBTP subtitle lag month plan usable stability fill width runtime minus multicam bitrate usable channel target noise webcam today. For vfr inspector, case 8: correlation per alpha minus subtitle CPS threshold minus headroom buffer target dBTP target eyeDrift frames fps replay camera portability clamp today. For vfr inspector, case 9: bits start RMS music width height flash total fps revenue dBTP VFR minus bitrate duration focus seconds platform ok multistream today. For vfr inspector, case 10: drift height clamp RAM space warning checksum thumbnail lag headroom timestamp podcast delay total LUFS alpha percent start critical headroom today. For vfr inspector, case 11: target transcript WPM derived thumbnail minus subtitle impersonation resolution width RAM starvation runtime gaps per minus focus fps warning drift today. For vfr inspector, case 12: minGap thumbnail starvation jitter recompress monotone YouTube crash bitrate warning bits thumbnail delay height