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  1. #1


    Member Since
    Jan 31, 2012
    Posts
    48
    How to shrink an audio file?
    Hello:

    I have an M4P file that is 30 MB in size. I need to shrink it at least in half in size and incorrectly thought compressing the file would shrink it but it simply put it in a zip format.

    Can I get some direction from the forum in how to proceed?

    Thanks in advance.
    JPH
    MacBook Pro 17: 2.5 Ghz, 8GB RAM/1 TB, Anti-Glare
    MacBook 1.1Ghz/8 GB RAM/256 GB,
    iPad3, iPhone 6s+ 64 GB, Verizon.

  2. #2


    Member Since
    Sep 10, 2011
    Posts
    1,805
    Hi,
    A clunky way to try would be to stick it on a CD and set iTunes to auto- import at one of it's lower settings.

  3. #3

    dtravis7's Avatar
    Member Since
    Jan 04, 2005
    Location
    Modesto, Ca.
    Posts
    28,910
    Specs:
    iMac 2010 27" QuadI7 OSX10.11, iMac 2008 OSX10.11, MBP Late2011OSX10.11 , iPad Air, iPhone 3GS
    No matter what way you do it you will have a quality loss. Just letting you know.

    What are you trying to do, put it on a device with limited room?

    You can in iTunes convert and lower the bit rate. Only way to really make it smaller. You can do that in other apps also.

    You should also be able to load the files into Audacity and save with a smaller bit rate,

  4. #4


    Member Since
    Jan 31, 2012
    Posts
    48
    This worked
    The first thing I did was drag the icon with the 28.6mb M4a audio file to the desktop.

    The OS X is Mountain Lion 10.8.2

    Then I highlighted the icon, File--Quick Look

    I then sent the file to my iPhone via "Message" from my laptop. The OS somehow shrunk the file automatically to 7.2mb!

    I then sent the 7.2mb file to my e-mail address and from my laptop, I was able to e-mail it successfully.

    I just don't know how the almost 4 fold shrinking happened, and how I can do it manually. The audio quality was acceptable.
    JPH
    MacBook Pro 17: 2.5 Ghz, 8GB RAM/1 TB, Anti-Glare
    MacBook 1.1Ghz/8 GB RAM/256 GB,
    iPad3, iPhone 6s+ 64 GB, Verizon.

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