What it does require is that the video camera has its own microphone which is recording The best solution which I have found is a variant on the clapperboard method,Īnd it works independently of any particular video editing software. An Alternative Solution: Align the Audio Tracks That makes it easy to identify the moment of the "clap" within both the video and audio tracks,Īnd then carry out the necessary realignment. Of course once you've recorded your video and audio with the clapperboard clappingĪt the start of the video, you then have to find some video editing software This to work properly, the video camera has to have a clear view of whatever finger or Note on your musical instrument, preferably with a timbre that has a rapid attack. In a musical context, the clapperboard can be replaced by playing a particular In a particular position that can be visually identified. (And if you don't have either Mac or Windows, then presumably you're out of luck.)Īpproach to this problem: a device which makes a noise which starts when the device is You don't have a Mac, you'll have to buy one of those as well, or wait for the Windows Also only currently available for Mac, so if It costs: $US199 (at the time of writing). Red Giant claims to solve the alignment problem, and you can see from that page how much Line-in audio inputs, so this is a more expensive solution.Ī variant on this solution is the combination of an recent model Iphone with aĪssures us that the line-in is a digital stereo input.) Alignment Software Typically cheaper consumer video recorders do not have external stereo Some Possible Solutions Get a camera that accepts stereo line-in or external microphone input But, and here's the problem we need to solve, there is no way to easily and automatically.Sound, recorded via a line-in or microphone input on the computer's sound card. You can easily record quality audio into your home computer.Your home video camera has a microphone, but the recording sound quality is not.(Here, a "video camera" might be an actualĬamcorder, or a digital photo camera, or just your mobile phone.) Which is going to be uploaded to YouTube. Your home video camera records good quality video, which is good enough to make a video.So, you've practiced playing some music, which might be original, or it mightīe a cover, and now you want to record a video of yourself playing it and you want to putĪt this point you discover a problem that many others before you have discovered: same for the sound.A Common Scenario: Home-Recording a Music Performance Video Also, my bit rates/quality are probably lower than you want. If the file is different than 480x360, I *think* it scales, then crops. If you're not used to ffmpeg, it can be a PITA until you get it set up.įWIW, here's for 480x360 files that I crop to 480x328 (takes 16 pixels off the top and bottom) - you can prolly delete that part and use the rest to start from. It'll run fast without the video re-encode.Įdit: the time often seems to be shifted by 600ms or -600ms (others have found this value, too), tho sometimes around 3500ms.you might try the +/-600ms while converting.Ģ - use ffmpeg (Edit: the 'winff' GUI to ffmpeg writes some stuff to the ffmpeg command line that ffmpeg can't understand.I just delete them so it looks like the below ffmpeg command). I do mp4 -> avi quite a bit with avidemux, and sound sync is a problem with some files and not others.ġ - convert it, then make *another* convert with "copy video" and change the sound offset until it sounds right.
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