Hot answers tagged

4

Mp3 is audio only. The file extension can be virtually anything; if it's recognized as an extension known by Windows the associated program will be used to open it. The program will usually then read the file header to determine what file it really is, regardless of the extension. If the format can be read by the application it usually opens it just fine. ...


4

In general, the creator of a video can choose any combination of video-quality and audio-quality. In practice, persons who know what they are doing, and also the automatic engines of YouTube (facebook should be similar) that create different quality versions of the same video, have profiles, where the quality of video and audio is linked. So yes, higher ...


3

If you don't start with timecode, or even a 2-pop or clapper, I can't see any other way than lining it up by eye; finding a common beginning… then hoping they stay approximately in sync. I've never tried this in Audacity, but in any regular DAW or video suite you can just drag one track against the other roughly by eye, then keep increasing zoom & ...


3

Depends... If it's a track played by humans then unless they played to a click then it's unlikely the BPM is consistent because people will fluctuate tempo. Obviously the best will fluctuate only microscopically but fluctuate all the same. However it's electronic then the BPM is (likely) to be consistent. Therefore what happens isn't that it suddenly goes ...


3

Crediting never gives permission to use anything. If the creator does not say anything in the description, or does not provide a creative commons (CC) or similar license, you need to reach the creator, tell about your usage and obtain a written permission. If you can't get this permission, you cannot use that work. If you use the videos for a portfolio, ...


3

I find what coaxmw says to be true when I don't have a lot of music, so with primarily voice over. Regardless of Lufs and other standards for loudness, you should be mixing/leveling with your ears not meters. Have you calibrated your speakers and tuned your room acoustics? If have a monitor setting for commercials and another one for 'softer' material. Do a ...


2

There aren't really an "correct" levels for the web. I will usually make the web version of commercial hit around -16 to -18 lufs throughout the spot with peaks around -2dbfs. It seems like most other ad mixers are in that area as well That is just ballpark though, it really depends on your program material.


2

There are tools to do this kind of syncing in video editors. I am currently learning to use a free editor (not free source code though), Davinci Resolve. If you search for Multicam sync you will find alternative solutions (the tools allows you to select to sync on audio).


2

You need to check the license for the clip. If they are not Creative Commons licensed then it's probably a good idea to get in touch with the creator for permission. If you've not started on anything though it is going to be easier to just pick CC licensed work from the start (of which there is plenty). You can also search by license on Vimeo in the ...


2

I would go with the clapper method, I have been using it for some time and never had an issue with it. As mentioned it will drift over time but this depends on clip length. Movies and the such typically contain short clips so the drift wont be a huge issue. If you are shooting something like an interview that may just be one long running shot you may notice ...


2

The TV needs an actual video source to be detected. Simply terminating the input doesn't count. You need a video signal that has all the synchronization signals (which are detected) but the picture area is simply black. In video production this is called a "black generator". This is typically an expensive piece of broadcast gear. But, because analog ...


1

Basic steps to getting good audio quality: Get an external mic. You've already done this. When you use the built-in mic in the smartphone while recording video, the distance between the mic and your mouth is usually too large. The result is that volume is low, and the mic picks up a lot of ambient noise (reverb from your voice in the room, but also any ...


1

There is no way to do what you want. Human voice, no matter what voice timbre people have, is pretty much in the same frequency range. That said, you can at least filter out some of background noise by equalizing out frequencies that do not occur in human voice. There is a good article on voice frequency on Wikipedia: https://en.m.wikipedia.org/wiki/...


1

if you have two persons in the interview, hire a boom operator with experience. she or he will handle the audio side and you can focus on the interview.


1

here are a few clues : as your protools rig and the camera do not share a common clock reference, their respective speeds will slowly drift and you will notice that on long takes, even if you sync their starting point, they will end slightly out of sync on the editing software timeline. the easiest workflow in your case, because it doesn't require any ...


1

The H5 has an option to have the DB cut down from the line out out to the Camera, you can find this in the manual or on the Zoom YouTube channel for the H5


1

It's not a good idea, because the levels on both the line output and the headphone output are much too high for the camera mic input. If you were to turn the volume down on the headphone output, you'd probably end up with a lot of noise on the camera recording. What you really need here is a line-mic attenuator cable. This is a cable (or adapter) that ...


1

Sounds like you could benefit from a pre-amp of some sort to between the microphone and your camera. Your camera most likely takes a line level signal into the Aux jack. Here is an example of one way to handle your issue: The Saramonic SR-AX107 It will take the microphone and provide enough gain to get the signal up to line level. I can't vouch for the ...


1

What type of cables are you using to connect your audio interface into your camera? Does it support TRS? TRS cables generally do a great job of eliminating noise. The issue could range from gain staging (input on camera is too high), cable selection or it could be that the camera itself has a high self noise ratio.


1

As leftaroundabout said, use ffmpeg (or avconv - the one is forked off the other). It is command line based, which makes it useful for batch operations. On my Linux box the batch command would be something similar to: for FILE in *.mp4 do ffmpeg -i $FILE $FILE.mp3 done Use the -c:a copy option if you just want to strip away video and use the audio codec as-...


1

Asked an editor friend of mine and said it's probably sync tones (not just pops) which some production outfits use instead of a pop when a video fades from black (aka first frame is a black frame). The end of a tone is the first frame. They do this because some amateur audio guys still don't know how 2 pops work and end up starting the audio immediately ...


1

Take a look at a selection of promo videos - there are as many approaches as videos, some trying to have the vocals punch through a mix, some that want to make music the forefront at all times etc. If Pledge have specific levels, you should use theirs, but you will find that there is no standard in this area so go with what feels good to you.


1

You can try Video4YouTube, it is free extension for Sony Vegas Pro that "automatically determines the best render settings depending on the current project template"... For audio, it uses AAC codec with 128-224 bitrate 48kHz video quality doesn't matter (you can choose the lowest quality)


1

I once tried recording a video signal as audio on a vhs tape, if you squinted at it you could make out the original image on things with sharp contrast, it obviously did not get the colour burst so it was black and white, but it was better than i was expecting, a digital recording did not even manage that though, probably because it was trying to reproduce ...


Only top voted, non community-wiki answers of a minimum length are eligible