Trimming audio extracted from video to play on iPod

Discussion in 'iPod' started by iaddict, Oct 25, 2009.

  1. macrumors 6502

    Joined:
    May 15, 2007
    #1
    Okay, I managed to download the video I wanted and even extracted the audio file from it via MPEG Streamclip. Now what I want to do is edit the audio portion so that the only thing I have left is a song that is somewhere in the audio clip. I don't know how exactly to do that. I tried using GarageBand but couldn't open the clip for some reason. There's probably over 7.5 minutes of audio but the song starts somewhere around 1:55 and ends around 4:24. I don't know how to do this. Can anyone help me?
     
  2. macrumors 6502a

    Cinematographer

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    #2
    Press CMD-I to get the info pane, click on the options tab, then set start and stop time. Re-encode to cut out the obsolete parts in order to reduce file size if you must.
     
  3. thread starter macrumors 6502

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    May 15, 2007
    #3
    in what program

    What program should I be in when I do this?
     
  4. macrumors 6502a

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  5. macrumors 6502a

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    #5
    I use Super (erightsoft) to convert the audio to WAV (all you have to do is drag virtually any video file and it will convert the audio portion to WAV), then I open the WAV in audacity to trim the audio and add fade-ins and fade-outs.

    Then I'll archive as Apple Lossless or mp3 depending on the source.
     
  6. thread starter macrumors 6502

    Joined:
    May 15, 2007
    #6
    iTunes isn't working

    I opened the information panel and chose Options. Put in start time and end time then clicked Okay. Audio still is all there, nothing trimmed out. I guess I am doing something wrong but I don't know what - really new at doing this type of thing.
     
  7. macrumors 6502a

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    #7
    It looks as if you're doing it right though:

    Make sure to use this format "3:12.4" for 3 min 12.4 sec.

    When you then double-click the song, it starts later and stops earlier. When you then choose "Create AAC version" from the Advanced menu, it re-encodes the song and you get the shorter sound file you wanted.

    Instead of Create AAC version, you can also …

    * Create MP3 version
    * Create AIFF version
    * Create WAV version
    * Create Apple Lossless version

    The menu item changes to show what's selected in your Importing preferences.
     
  8. thread starter macrumors 6502

    Joined:
    May 15, 2007
    #8
    I still must be doing something wrong

    I created a new MPEG, info panel shows that it is a MPEG -2, Layer 3 (I have no idea what all that means). Anyway, when I double click it to play, it still starts at the beginning of the audio, not where I had put that I wanted it to start and still plays through to the end of over 7 minutes. I think I must be doing something wrong but I just don't know enough about this to figure it out on my own.

    I do appreciate your help! Thanks. Still trying:(
     
  9. thread starter macrumors 6502

    Joined:
    May 15, 2007
    #9
    also

    Start Time was put in as 1:55:02 and End Time as 4:24:01.
     
  10. macrumors 6502a

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    #10
    That's 1 h 55 min 02 sec. Maybe that's the problem, don't know.
     
  11. thread starter macrumors 6502

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    #11
    That was it!!!

    Thanks! I had entered the time incorrectly, as you suggested. Once I changed the : to . everything worked great!
     
  12. macrumors 6502a

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