A Question about the demo

nlkelly

Member
I noticed your sale is still on and i downloaded the demo to see if the pro version will allow me to "normalize" the audio in my videos to a fixed reference level. I loaded a simple 6 minute video (from youtube) and ran the LKFS analyzer and it says LKFS level is -33.73 dbfs and peak is -11.82 dbfs. i tried the save the file and a section of the file back out (using the H.264 MP4 setting) and the files' audio is not changed in amplitude. The selections for the LKFS is grey out in the advanced grid view under normalization and compression. Is this feature disabled in the output for the demo ? it's greyed out but the value is set to -23. I have tons of movies and cartoons on a media server and i need away to set the audio levels of these mp4 files to a somewhat similar audio level. i assumed an LFKS setting / filter would be the best solution. am i on the wrong track here?
 

Dan203

Ex-Senior Developer
You have to change the audio codec to something other then Auto for that option to be enabled. We can only normalize if the audio is being recoded.
 

nlkelly

Member
That makes sense - wonder why it didn't occur to me. Thanks! Will the LKFS option solve my problem of getting all my files to the same reference level ? Totally love your software by the way.
 

Dan203

Ex-Senior Developer
Kind of. Normalization will adjust the peak volume up or down to a specific value, adjusting everything else relatively. How much that effects the volume of the final show really depends on how much variance there is in the volume of the complete audio stream. Compression might be a better option if the file jumps from really soft to really loud.

FYI the consumer product has basic normalization. You really only need LKFS if you're in the broadcasting industry and need to meet broadcast specifications.
 

nlkelly

Member
HI;
My main problem is that i have video recorded from two different Sagetv PVR systems over the last 5 years and a bunch of video recorded with PlayLater and Youtuble type down loaders. In order to get them roughly to the same level, i must play the file on my editor PC while watching a peak level meter on the PC, then calculate the amount to shift that particular file. As it happens, my manual adjustment seem to have end up with the LKFS level around -23dbfs (i used raw video of off several DVDs as a reference source level so it makes sense). It looks like i can throw a directory from my server into the batch editor and create a profile to adjust just the audio and then walk away. When complete i can overwrite the original files, and the audio won't jump around as the random player in the server goes from show to show. Anyway, i just ordered the pro version - been using Videoredo for years and it's the best editing software I've ever used. If you guys could support directly cutting the file into multiple files by setting markers it would be perfect ( using the save to batch / clear markers trick now). Thanks for your help
 

Dan203

Ex-Senior Developer
If you're already doing that kind of adjustment and you're happy with the results then yes it should work the same in an automated system using VideoReDo. Although if you need that sort of automation, where it scans the file and adjusts up/down automatically, then you will need to use Pro and the LKFS routine. The basic normalization in the consumer product is just an offset it doesn't calculate and adjust to a specific level automatically.
 

nlkelly

Member
Got the full pro version installed and tested a cartoon file and it seems to work great. I also love that i can add groups of files into the batch processor. I created a video pass through / audio lkfs profile and it seems to take about 1 minute per 22 minute show to pound out the adjusted file. Thanks for your help. if you guys ever get around to multiple splits of a file based on markers let my know. That's my last big hurdle.
 

nlkelly

Member
man i seriously owe you guys a beer !! thank you thank you. i have a ton of files that have a flash player control bar popup on the bottom of the screen for 2 seconds every 45 minutes of run time. i need to break up the file, crop the 2 second file with a black bar or something less obtrusive ( takes up about 40 pixels on the bottom of the screen but it moves so it draws your attention) and then rejoin the whole file back together. I've been hunting for a frame accurate splitter and nobody has one ( everything cuts at the key frame). The "multiple scene save videoredo batch method" is all I've been able to come up with. any idea when the next beta will be released ? not a massive hurry , i have a bunch of file to correct the audio level on first :)
 

nlkelly

Member
Dan;
I saw that the newest beta is out. i looked through the list of changes ( haven't had a chance to try it yet) but i didn't see a mention of splitting a file into multiple pieces by markers. Did that new feature make it into this beta release ?
 

Danr

Administrator
Dan;
I saw that the newest beta is out. i looked through the list of changes ( haven't had a chance to try it yet) but i didn't see a mention of splitting a file into multiple pieces by markers. Did that new feature make it into this beta release ?
Oops, got left off the change log. Yes it's there.
 

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nlkelly

Member
Thank you. I'll experiment with it tonight. So basically i put markers where ever i want the original split - so 5 markers splits the original into 6 parts? Are the parts auto-named / numbered so the sequence is obvious ?
 

Danr

Administrator
Not scene markers (red bars), but output scenes. These are the green sections of the time line. Let's assume you're in scene mode, then for each scene in scene list on the right side of main screen will be output to a sequentially numbered file.
 

nlkelly

Member
Dan;
I had a brief chance (very brief) over the weekend to update my install and try the "splitting" functionality. I have a question though. In the mode i need to work in, i need to split a single file into say 5 pieces without losing any frames. When i tried to select an end frame (of a scene) and then make the next frame (in series) a start frame of the next scene it said that i could replace or add scene to last scene but didn't allow me to start a new scene unless i left out a frame in between scenes. i didn't have the split option checked at the time ( not sure if it make a difference). Is it possible to split a large segment into multiple segments without losing frames ?
 

Danr

Administrator
Try going to shift+ Tools>Options and setting #60 Allow back to back cuts to True. See if that helps.
 
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