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Syncing Audio and Video
For my Youtube recordings to date I've been using my Zoom recorder for both audio and video. However, I've been thinking of recording the audio through my old M-Audio Fast Track into Audacity to give me control over separated guitar and vocal audio tracks.
Two questions: Is this how most higher-quality videos are produced, and if so, how are the video and audio synced after the fact? I'm concerned about the latter because I don't see how one could start the two recording devices simultaneously.
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1967 Aria Classical 1974 Guild D50 2009 Kenny Hill New World Player Classical 2009 Hoffman SJ 2011 Hoffman SJ 12 https://paulashley.weebly.com/ https://www.youtube.com/c/PaulAshley https://www.reverbnation.com/paulashley Last edited by lpa53; 08-03-2017 at 09:47 AM. |
#2
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The method for synchronizing the pair is to provide a visual action on camera that creates an impulse sound, for instance a clap.
Once you finished the video you place the video and audio in the timeline and move the audio until the impulse, the clap sound, lines up with the visual, the coming together of the hands. et Voile'! Once in sync you edit the clap off the front end of both audio and video. Bob
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"It is said, 'Go not to the elves for counsel for they will say both no and yes.' " Frodo Baggins to Gildor Inglorion, The Fellowship of the Ring THE MUSICIAN'S ROOM (my website) |
#3
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1967 Aria Classical 1974 Guild D50 2009 Kenny Hill New World Player Classical 2009 Hoffman SJ 2011 Hoffman SJ 12 https://paulashley.weebly.com/ https://www.youtube.com/c/PaulAshley https://www.reverbnation.com/paulashley |
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Quote:
Bob
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"It is said, 'Go not to the elves for counsel for they will say both no and yes.' " Frodo Baggins to Gildor Inglorion, The Fellowship of the Ring THE MUSICIAN'S ROOM (my website) |
#5
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You have a little wiggle room, as long as the audio isn't early.
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I forgot to ask, though, is there a program that would display both the audio and video in enough granularity to ease syncing? All I've ever used is Audacity for audio and the overwritten video audio in Avidemux.
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1967 Aria Classical 1974 Guild D50 2009 Kenny Hill New World Player Classical 2009 Hoffman SJ 2011 Hoffman SJ 12 https://paulashley.weebly.com/ https://www.youtube.com/c/PaulAshley https://www.reverbnation.com/paulashley |
#7
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Quote:
Bob
__________________
"It is said, 'Go not to the elves for counsel for they will say both no and yes.' " Frodo Baggins to Gildor Inglorion, The Fellowship of the Ring THE MUSICIAN'S ROOM (my website) |
#8
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Here's a tutorial on syncing in REAPER: http://www.homebrewedmusic.com/2010/...deo-in-reaper/ There are other REAPER video videos on the site as well, the program has been enhanced for video quite a bit in the last year or so. Here's the latest post I did: http://www.homebrewedmusic.com/2016/...eos-in-reaper/
I've used other programs that are free. Shotcut: https://www.shotcut.org/ HitFilm: https://hitfilm.com/ Avidemux: http://avidemux.sourceforge.net/ There are a number of commercial programs that support multiple tracks and syncing and cost under $100, you can see a bunch of choices here: https://www.bhphotovideo.com/c/searc...52f3160ebd3c37 Any and all of these options may be stress-inducing depending on how much patience you have for delving into computer obscurity. Fran
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E ho`okani pila kakou ma Kaleponi Slack Key in California - www.kaleponi.com My YouTube clips The Homebrewed Music Blog |
#9
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Fran, I corresponded with you several years ago about your recording methods and you helped me a lot. I d have another question you might be able to answer. I currently use a Zoom Q3 HD unit to record audio and video, but I've noticed that after processing that video through, say, Avidemux and, I hate to say it, Windows Movie Maker, the video quality always seems to be of rather low resolution. Is it the case that running the Zoom MOV file through other programs will reduce video quality? EDIT: I just found an old Youtube of yours about syncing audio and video in Reaper!
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1967 Aria Classical 1974 Guild D50 2009 Kenny Hill New World Player Classical 2009 Hoffman SJ 2011 Hoffman SJ 12 https://paulashley.weebly.com/ https://www.youtube.com/c/PaulAshley https://www.reverbnation.com/paulashley Last edited by lpa53; 08-04-2017 at 09:53 AM. |
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Yes, the YT video on syncing was included in the blog post I linked.
As far as video quality after the render, that depends a lot on how the render is specified. I don't have Avidemux on my system these days, but there were lots of choices for output format/codec and levels of quality. A 2 pass x.264 render at 1000 mbps or so should give output indistinguishable from the input. I think Windows Movie Maker does sacrifice quality, but I've never made more than cursory use of it. I'm doing a quick tutorial on Shotcut, it's looking pretty decent and I'd definitely recommend it over Avidemux or WMM. Video is just annoyingly complicated, I'm afraid. Fran
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E ho`okani pila kakou ma Kaleponi Slack Key in California - www.kaleponi.com My YouTube clips The Homebrewed Music Blog |
#11
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OK, I had fun with Shotcut doing a quickie Look At Me Play Guitar video, syncing video from my Lumix LX100 with audio from my Zoom H6.
http://www.homebrewedmusic.com/2017/...a-lampg-video/ Here's the edited video: and here's the tutorial: I was pleasantly surprised by the responsiveness of the program even though I was using a 4K h.264 video. Fran
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E ho`okani pila kakou ma Kaleponi Slack Key in California - www.kaleponi.com My YouTube clips The Homebrewed Music Blog |
#12
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That's a big help, Fran, and does look a bit more up to date than Avidemux. I'll give it a try.
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1967 Aria Classical 1974 Guild D50 2009 Kenny Hill New World Player Classical 2009 Hoffman SJ 2011 Hoffman SJ 12 https://paulashley.weebly.com/ https://www.youtube.com/c/PaulAshley https://www.reverbnation.com/paulashley |
#13
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On pro shoots they usually sync the audio & video systems to a time code generator. That way you align the time code in post and know that everything will stay synched because they used the same clock...with the same drift & jitter all the way through. You probably won't notice much, if any, drift for short videos. That typically begins to show up on longer videos. HTH
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#14
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Well, after all of the great advice, I'm realizing I probably need a new audio interface. I've not been recording for quite awhile, using only my Zoom HD, and am now realizing that my old M-Audio Fast Track Pro does not work with Windows 10, to which I upgraded a long time ago. Now to figure out what newer options to consider ... ones that don't break the bank.
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1967 Aria Classical 1974 Guild D50 2009 Kenny Hill New World Player Classical 2009 Hoffman SJ 2011 Hoffman SJ 12 https://paulashley.weebly.com/ https://www.youtube.com/c/PaulAshley https://www.reverbnation.com/paulashley |
#15
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One knock I had was the lack of a mic preamp, but I worked around the issue by using an external pre into the line in port. There's a sample of that setup in my first blog post on the Q3HD: http://www.homebrewedmusic.com/2010/...the-zoom-q3hd/
I also did some videos using a Zoom H2 as a powered mic, with the headphone out of the H2 into the line in of the Q3HD. According to the manual you can use your Fastrack Pro as a standalone mic pre so you could try that approach for the cost of a couple of adapters. It looks like you'll need a couple of RCA plugs on one end and a 1/8" stereo plug on the other. Fran
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E ho`okani pila kakou ma Kaleponi Slack Key in California - www.kaleponi.com My YouTube clips The Homebrewed Music Blog |