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Video Conventor ?

Discussion in 'Android Devices' started by kissofthehell, Sep 2, 2011.

  1. kissofthehell

    kissofthehell Newbie
    Thread Starter

    I tried any video conventor to convert videos but apperantly they dont work any 1 can give 1 which will convert videos which will work on Xperia play? i used players from market either there is wierd buzzing or some videos do not open
     



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  2. Wisenos

    Wisenos Android Enthusiast

    Vuze (torrent downloader and video converter)
    just convert for Android or any mp4 format.. will read with stock player
     
  3. paxchristos

    paxchristos Android Enthusiast

    if you feel like converting videos on your pc, there's always SUPER
     
  4. paxchristos

    paxchristos Android Enthusiast

    I've had issues with MoboPlayer, but maybe I'm just not lucky :p

    Maybe it's the R800x...
     
  5. oleb84

    oleb84 Android Enthusiast

    If i converted an .avi to .mp4, does it reduce the size of the file? I watch a lot of movie files on my phone but every other day i am deleting things and putting new ones on my phone, i would rather just put a larger amount on less often!

    Also, can i reduce the file size of .mp3 albums?
     
  6. shotgunfool

    shotgunfool Well-Known Member

  7. paxchristos

    paxchristos Android Enthusiast

    NO!! that is exactly backwards. A wave files is about 10mbs for every 1 minute of music. A mp3 file (at 128kbps) is 1mb for every 1 minute of music.

    Wave files (.wav) will not make you songs smaller, it'll make 'em bigger, in order to drop the size of an mp3, you can use the program I posted earlier, find another, or burn it, then rerip it at a lower bit rate. The Bit rate is what matters for size (esp. on mp3 files) about 96-128kbs is where i keep most of my files, and it's about 1mb = 1 minute of music. Wave is an uncompressed audio format, MP3 is a compressed (with a nifty algorithm to boot) audio format.

    Moral of the Story: You have to make a trade off, quality or space, if you're willing to sacrifice quality, go ahead and re-encode them. Same thing is true of movies (except resolution also comes into play along with bit rate)
     
  8. oleb84

    oleb84 Android Enthusiast

    ^ With movies though, surely a lower resolution wouldnt make a difference because the screen is only a few inches compared to the 30+ inches you would normally watch it on?
     
  9. paxchristos

    paxchristos Android Enthusiast

    The resolution of the screen has nothing to do with the file size. The video player will automatically play at the resolution of you screen on your phone. The video file will still have the same original resolution, just compressed down...


    For example (all calculations are simplified, don't fret, they're not 100% on, only an example), 1080p (1920x1080 resolution) has 2,073,600 pixels. Now, let's say that each pixel is represented by 1 bit. That would be 253kbs/frame, NTCS (because i'm from America :) ) runs at 29.97 (changed to 30 for ease of calculations) which would mean every second would be approx. 7mbs, every minute approx. 445mbs, every hour 25gbs,

    Now if we drop the resolution down the resolution of the that of the xperia play, (854x480) you only have 409,920 pixels, which means each frame would be 50kilobytes, every minute 2.9mbs, every hour 175megabytes.

    This is just a (very) rough example of what uncompressed video at 1 bit a pixel would be. With compression, and color added in it gets a whole lot more complicated.

    That answer your questions?
     
    oleb84 likes this.

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