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File conversion not working
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thumpy
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16. February 2009 @ 11:09 _ Link to this message    Send private message to this user   
I have some videos that when I convert them and transfer them to the ps3 the format is mp4 and some are avc. The thing is the mp4 versions sounds amazing while the avc sound very low. I use the same program for both xilisoft platinum and chose the format to mp4. All the files original formats are mkv. I want them all to be mp4 not avc. Is there a reason why this is happening and how to fix it?


Thanks
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KajNrig
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16. February 2009 @ 12:26 _ Link to this message    Send private message to this user   
What are the video/audio streams of your .mp4 file? In the same way, what are the video/audio streams of your AVC file? (You can check easily from your PS3 by going to the file, pressing Triangle and clicking on Information.)

The thing is that "AVC" doesn't necessarily represent the container format, but the video stream. If you look at the definitions on this site, .mp4 is an official container for mpeg-4 video, whereas AVC is a standard to which the mpeg-4 video is written.

In other words, .mp4 containers can hold AVC video. ...sort of. It's weird and technical and really confusing.

Anyway. The issue is most likely with the audio portion of your file. You could try converting the audio to a higher bitrate using eac3to or some similar program.

Since I've never used Xilisoft, I wouldn't know how to work with that program.

On another note, what are the original videos that you're using? What are their video/audio/subtitle streams? Since you say you convert them (as opposed to remuxing, which is simply repackaging them) with Xilisoft, I'm guessing that something gets lost in the conversion process. It'd be helpful if you could post the video/audio from a file that's loud after conversion and a file that's soft after conversion.

Hope that didn't just confuse you even more.
thumpy
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16. February 2009 @ 12:51 _ Link to this message    Send private message to this user   
you basically just need me to tell you the number value of the audio and video for both the avc and mp4?

Also the videos are star wars clone wars tv episodes that are converted to 720p and h264 (mkv) format.

That eac3to is the program you use to import convert videos so that the ps3 can read?
KajNrig
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16. February 2009 @ 13:40 _ Link to this message    Send private message to this user   
Uh, not the number value or anything like that. When you click on Information, you should see something like "Video Codec" and "Audio Codec" or something like that. That's what I want.

The videos being h264 is an example of the video codec. Now that that's settled, all I really need to know is what the audio codecs are. Give me an example of the audio codec from a file that plays normally, and one from a file that plays very softly.

eac3to isn't a video program. It deals specifically with audio streams, and what it does is convert from one format (say... DTS) to another (like ac3).

But yeah, I don't think that converting a file to a PS3-compliant format would be a good idea if it's already PS3-compliant. All you'll end up doing is downgrade the quality. What you should do instead is just remux the file - use tsMuxer to remux the file to an .m2ts file, which the PS3 will be able to play easily. No long conversion process needed.

But anyway. The biggest thing I need to know is what the audio codecs of your movies are.
thumpy
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16. February 2009 @ 14:15 _ Link to this message    Send private message to this user   
Thanks for the help. Ill get you that info when I get home today.
thumpy
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25. February 2009 @ 11:14 _ Link to this message    Send private message to this user   
Good one mp4
Video mpeg4 951kbps
Audio mp3 160kbps

Bad one
Video avc kbps
Audio aac kbps
Carlos A. Barrera
System Administrator
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KajNrig
Senior Member
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25. February 2009 @ 11:24 _ Link to this message    Send private message to this user   
I'd convert the AAC audio to something like AC3. Although the PS3 is supposedly capable of playing AAC audio, with mine it doesn't play at all, so I just convert it to 640 kbps AC3. That might be what helps you out.

...and "when I get home today," eh? It took you this long to get home? :)
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