7 Replies Latest reply: Nov 25, 2012 1:28 AM by ed2345
Niku Level 2 Level 2 (285 points)

The sound recording/editing program I have used for years is temporarily (I hope) disfunctional, so I need something to replace it until I can get it fixed. What is an easy way to compress MP3 files? Along those lines, I have been trying various ways of compresssing a 6 MB file, but the result is always just another 6 MB file. I'm talking only about song files in my iTunes library, most of which are in the MP3 format.


iDVD 7.1.1 (1150)
  • 1. Re: Compressing iTunes songs
    Niku Level 2 Level 2 (285 points)

    I should add that the particular song I'm interested in at the moment is in the MPEG audio file format.

  • 2. Re: Compressing iTunes songs
    ed2345 Level 6 Level 6 (18,870 points)

    Niku wrote:

     

    The sound recording/editing program I have used for years is temporarily (I hope) disfunctional, so I need something to replace it until I can get it fixed. What is an easy way to compress MP3 files? Along those lines, I have been trying various ways of compresssing a 6 MB file, but the result is always just another 6 MB file. I'm talking only about song files in my iTunes library, most of which are in the MP3 format.

    To make an MP3 smaller, you need to re-encode it at a lower bit rate.  The bit rate can be set by going to Preferences > Import Settings, and choosing a lower bit rate from the Custom menu.

     

    Be aware that the conversion process creates a new MP3 and leaves the original in place, so make sure you are looking at the new one.  Also be aware that compressing an MP3 will irreversibly reduce its audio quality.

  • 3. Re: Compressing iTunes songs
    Niku Level 2 Level 2 (285 points)

    ed2345 wrote:

     

    Niku wrote:

     

    The sound recording/editing program I have used for years is temporarily (I hope) disfunctional, so I need something to replace it until I can get it fixed. What is an easy way to compress MP3 files? Along those lines, I have been trying various ways of compresssing a 6 MB file, but the result is always just another 6 MB file. I'm talking only about song files in my iTunes library, most of which are in the MP3 format.

    To make an MP3 smaller, you need to re-encode it at a lower bit rate.  The bit rate can be set by going to Preferences > Import Settings, and choosing a lower bit rate from the Custom menu.

     

    Be aware that the conversion process creates a new MP3 and leaves the original in place, so make sure you are looking at the new one.  Also be aware that compressing an MP3 will irreversibly reduce its audio quality.

    Sounds promising, but I need to know one more thing: Do I have to make the compressed copy while playing, and recording, the original, or can I simply highlight the original and then follow your instructions? In other words, if the second method is feasible, I wouldn't have to wait for, say, three minute to make the compressed copy. Oh, I just relized that with my recording/editing program down I can't do any recording, so your method will be perfect.Thanks in advance.

  • 4. Re: Compressing iTunes songs
    ed2345 Level 6 Level 6 (18,870 points)

    Niku,

     

    In iTunes, right-click the track in your library and choose "Create MP3 version."  The conversion only takes a few seconds.

  • 5. Re: Compressing iTunes songs
    Limnos Level 8 Level 8 (38,450 points)

    Select a bunch of tracks and let it do them in one go.  Depending upon the speed of your computer and size of the tracks it will only take a few tens of seconds per track to encode.

     

    iTunes: How to convert a song to a different file format - http://support.apple.com/kb/HT1550 - including information about different formats and discussion about compression.

     

    Topic: Need to convert mp4 to mp3 - Zevoneer's post on converting songs - http://discussions.apple.com/message.jspa?messageID=9244740

  • 6. Re: Compressing iTunes songs
    Niku Level 2 Level 2 (285 points)

    ed2345 wrote:

     

    Niku,

     

    In iTunes, right-click the track in your library and choose "Create MP3 version."  The conversion only takes a few seconds.

    --

    Most of them are already in the MP3 format, or rather MPEG, which I understand is just about the same thing as MP3. However, you now have me worried. Do you original instructions still hold?

  • 7. Re: Compressing iTunes songs
    ed2345 Level 6 Level 6 (18,870 points)

    Niku,

     

    The files listed in iTunes as "MPEG audio" are exactly MP3s.

     

    When you use the iTunes command "Create MP3 version," iTunes will create a new MP3 having the bitrate and other properties according to the current Import Settings, even if the original file is itself an MP3. 

     

    Ed