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Audio Conversion Question

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Audio Conversion Question

Postby BuddyB » Sun Apr 12, 2015 10:00 am

I use Sony as my basic music editor, and it is selected in MS13. Part of my issue with one movie is that it is 5.25 megs, too big to burn. Even though it's at 2 hrs I apparently have too much going on. I know I will have to cut some of the video, but audio-wise I mostly messed up and saved the audio as wavs. I need, I think, to convert them to MP3s. I took one from Ms13 into Sony audio and saved as an MP3, but it did nothing to change the file in the Media Bin, or on the track. Does this mean that I will have to delete all the WAVs in Media Bin and replace them individually with the converted MP3s? What I'd love to do is convert them some way and have it affect the track.
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Re: Audio Conversion Question

Postby Francesco Carzedda » Sun Apr 12, 2015 10:26 am

Buddy, I always recommend Format Factory for Windows all versions:

[url]format-factory.softonic.it/[/url]

Updated version is great and easy to use!
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Re: Audio Conversion Question

Postby Steve Grisetti » Sun Apr 12, 2015 12:19 pm

Meantime, Buddy, remember that the size of your final video file, when you burn it to disc as a DVD, has NOTHING to do with the size of your project file. So it doesn't matter whether you use WAVs or MP3s or whatever for your audio. In the end, it will ALL be transcoded to something else. The the 5.25 meg size of your movie is irrelevant. (In fact, if it did, 5.25 megs would make a tiny DVD, since discs can hold up to 4.7 gigs of data.)

All you need to worry about is the length of your movie. A DVD can hold about 70-90 minutes of video at full quality. (You can reduce the quality to some extent with DVD Architect and maybe squeeze more onto a disc -- though I'm not sure if DVD Architect will squeeze 2 hours on a disc. There are third-party programs that will though.) It doesn't matter whether the actual video and audio in your project file is a few gigabytes or a 100 gigabytes. When you've turned it into a DVD, the only thing that matters is the running time.
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Re: Audio Conversion Question

Postby sidd finch » Sun Apr 12, 2015 12:25 pm

Buddy Not sure if I understand correctly but here is my attempt.

When you create a movie (putting together the ingredients: video clips audio clips still images etc.) you want to use the highest quality. WAV file for audio, High Def source clips etc. After you complete your editing (think of mixing the ingredients of a cake together) you want to output your ingredients into a single movie (think baking your cake)

To output for standard definition DVD you want to choose MPEG 2 for the video and AC3 for the audio. AC3 will help reduce the size of the file into something manageable. When you output to a standard DVD format there are only 3 choices for audio. AC3, PCM, and MP2.

AC3 format has very good quality and very high level of compression. That's why the size of audio information is small.

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Re: Audio Conversion Question

Postby vkmast » Mon Apr 13, 2015 6:56 am

BuddyB,
you need now to go back a bit. Read again the replies dated Sat Oct 18, 2014 in this thread
viewtopic.php?f=93&t=13435
It's just what sidd and Steve above again advise, with a bit more detail.
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Re: Audio Conversion Question

Postby Kent Frost » Mon Apr 13, 2015 7:21 pm

Say you want to ship a blanket (burn your project to disc), and say you have a box (DVD) that's about 1/8 the size of the full spread of the blanket (your project). When you go to the shipper (the disc burning software), it will fold the blanket - no matter what it's made of - and change its shape so that it fits in the box. That's exactly what your DVD burning software is doing. It's taking all the elements of your project and squeezing it into the available space of the disc using a format and compression ratios specific to it.
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Re: Audio Conversion Question

Postby Steve Grisetti » Tue Apr 14, 2015 7:23 am

Nice metaphor, Kent!
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Re: Audio Conversion Question

Postby Chuck Engels » Tue Apr 14, 2015 11:33 am

Yes, very nice :TU:

I work in transportation so that really hit the mark for me :)
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Re: Audio Conversion Question

Postby BuddyB » Thu Apr 16, 2015 8:42 am

Sidd, I get the picture, but I don't see, in MS13, a way to assure that I'm doing AC3. When I convert to MP2 I get a beautiful video rendering but no audio. I'm including a shot of the selection screen. Steve I'm trying to do an MP2 to take into Architect so that I can possibly get it to burn on a DVD. At this point I'm about 10 minutes over the 70-90 minutes you mentioned. The very first effort was last year, the thingy was 2hrs, 3mins long. I don't know what I did, but it burned and my friend duplicated a bunch for his high school friends. Unfortunately I was not well, shooting from the hip and that's how I messed up.
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Re: Audio Conversion Question

Postby Steve Grisetti » Thu Apr 16, 2015 10:35 am

Thanks for the screen shot, Buddy.

You'll note that you've chosen the "video stream" option. This will give you a video-only output. (There is also an option for Program Stream, which will give you both video and audio in one file, if you'd prefer.)

Many Vegas/Movie Studio users prefer to output the Video Stream and then output the audio stream (using one of the Sony Wave64 options) rather than output them as one file. (DVD Architect will automatically rejoin them, if you give them both the same name and save them in the same directory folder.) This process will give your disc a potentially higher quality audio track.

However, in most cases, for us amateurs, simply outputting the video and audio together as a Program Stream will give you quite satisfactory results. So it's up to you.
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Re: Audio Conversion Question

Postby BuddyB » Thu Apr 16, 2015 11:37 am

Thanks Steve for the input. This will help when I try again in the AM.
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Re: Audio Conversion Question

Postby vkmast » Thu Apr 16, 2015 11:44 am

Buddy, it seems that you still need to lower the bitrate anyway by going to "Customize Template", probably to a bit below 5 Mbps CBR or VBR Average (for a single-layer DVD).
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Re: Audio Conversion Question

Postby Chuck Engels » Thu Apr 16, 2015 3:49 pm

You should be able to go down to 4.5 or even a little less and not lose any quality.
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Re: Audio Conversion Question

Postby BuddyB » Mon Apr 20, 2015 10:29 am

Every thought input here has helped me get a little bit further down the road. My thanks to everyone. I was able to burn the DVD because of you.
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Re: Audio Conversion Question

Postby Chuck Engels » Mon Apr 20, 2015 12:35 pm

That's great news Buddy :TU:
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