If you run into the audio and video out of sync issue during your screen or webcam recording on computer and have no idea on how to get rid of this irritating matter, solve it hands down with solutions involved in this article.
For all the positives, screen recorder software may still work in an unexpected way at times and output a screencast with problems such as laggy playback, no sound is captured, and audio and video (A/V) is unsynchronized, the last of which is just the topic of today’s post.
From time to time, there are users who seek help online for their recordings have video or audio delay issue. And specifically the segments may be created by desktop applications like OBS Studio, Bandicam, Camtasia, ScreenRec, ScreenFlow, Debut Video Capture Software, and Nvidia Share/Shadowplay, online browser services like Loom, Screencastify and many more. Surely not all videos are born with this error, because some only come across this abnormal phenomenon when being exported to hard drive, playback or imported into video editor like Premiere Pro.
Although some top recorder names are picked in the last paragraph, it doesn’t mean only their users get the audio or video delay error, but an outcome of their huge consumer crowd level up the possibility and visibility of this unsynced matter. Yep, in other words, people using any screen recording program is likely to experience the “audio and video at out of step” due to improper settings, saving manner, recording environment, and also the PC’s configuration.
Since the root cause of each (audio) sync drift issue varies from situations, you are suggested to try the following one by one, in the list order or not.
It’s time-consuming to produce another piece of screen recording at the save content. In addition, not all things can be re-captured, because some “creatures” only live for once, say online live broadcasting, real-time web meeting, or homemade how-to video tutorial with detailed annotation and your narration. If you are caught in either circumstance, you can check out the following 5 ways to give them a try.
1. Rename the recorded video
First and foremost, you should try the easiest workaround – renaming. Although this method seems a little bit amateurish, it does help many users solve the audio not syncing audio problem.
2. Reprocess the screen video with video editor or converter
If you have any editor or transcoder installed on your computer, you can simply input the recording into it for a re-rendering. Whether to change the codec, format, and other parameters or not, it totally depends on you. VLC is a good choice if you don’t have other processing program. (>> VLC Screen Capture Guide)
3. Convert frame rate type from VFR into CFR (if it’s recorded at variable frame rate)
In many cases, especially when you plan to do editing work with recorded file in Premiere and similar app, it’s the constant frame rate that brings about audio’s dropping out of sync as the video segment processes. At this time, you can try to convert VFR to CFR with open source HandBrake or other software.
4. Change the sample rate
Sometimes, sample rate value is regarded as a factor that may affect the sync. Even some still claims it has nothing to do with audio drift, you can give it a try by lowering the sample rate to maybe 48Khz, 44.1Khz and even 32Khz.
5. Re-time the video and audio with third-party video software
You can manually resync the audio in wave form by using non-linear editing/NLE software like Premiere Pro, Final Cut Pro, Davinci Resolve, Sony Vegas Pro. Also a small portion of linear editors are embedded with the force A/V sync function too. You can dig around for a handy one to work the annoying problem out.
No matter what’s the consequence of your fixing, since you have already came up against the audio falling out of sync problem due to software, recording setting of PC’s reason, you should walk through the tricks below to reduce the chance of the same problem during further screen recording.
● Make sure both of your video recorder for PC or mobile and operation system are the newest versions.
● Test the recording performance before real capture to ensure there’s no delay.
● Close all unnecessary tasks to free up enough space for recording.
● Change the saving path of your recording if the previous clip has audio drift error.
● Utilize constant frame rate/CFR for the capture, which is quite IMPORTANT if you are going to polish recording afterwards with editor.
● Set higher frame rate and proper sample rate and bit rate.
● Use software encoding rather than GPU hardware encoding like X264 QSV, X264 NVENC.
● Record at relatively shorter length because many long recording seems to have noticeable audio drift in the second half.
● Employ a more powerful PC if possible.
● Turn to some other best screen recorders for Windows, Mac, Chrome etc.
RecMaster is an entry-level yet all-around screen recorder for Windows and Mac. One one side, it delivers an intuitive interface with ready-made settings for users at any computing levels. On the other side, it’s equipped with many advanced tools to satisfy more precise recording and even easy editing requirements. Now you can free download it and see how it helps to record screen video smoothly without pesky audio or video delay.
– Multiple one-lick recording modes to choose
After installing and launch RecMaster, you are given several modes to select and move on to the next step. Game Mode is currently only available on Windows while Full Screen, Custom Area and Webcam are workable for both Windows and Mac. In case you need an extra audio recorder to document sound from system or microphone, RecMaster has Audio Only to help.
– Most down-to-earth video parameters to define
For either desktop recording mode, you are enabled to customize video format, frame rate value & type, quality standard, and whether to mix the facecam/system sound/microphone. To prevent the recording has no A/V out of sync because of video settings, you’d better choose“constant frame rate” at 30fps or higher. Since there’s no option for audio parameters including sample rate and bit rate, you can leave it alone with the excellent possible value.
– Real-time annotating with drawing pen
RecMaster provides annotation toolbar for those who are bound to capture training, teaching, and presentation resources. Mac version also builds a whiteboard in for easier note taking.
– Start and end the recording at will
RecMaster for Windows not only allows you to record the whole desktop at Windows startup, but also empowers you to schedule screen recording at a fixed time in the future.
While Mac version works in another way, in which you are free to set the recording duration to achieve auto-stop after manually starting the capture. What’s more, to avoid the recording is too large or long so that the audio lags behind video or vice versa, the software has added “auto-split” feature recently to help save recorded clips every xx minutes or MB. Also, it supports hardware H.264 encoding when you tick the “GPU acceleration” option under settings.
Screen recording audio and video out of sync is a common issue that many filmmakers may encounter, and no one could guarantee a 100% smooth and normal capture. So just take a note on the possible causes mentioned in this post and have all the possible troubleshooting methods in your mind to fix it as soon as possible. If you still have related questions or workable solution, please feel free to contact our support team.
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