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Thread: How do they do that!!!!!

  1. Jun 14th, 2002, 02:53 PM #1
    hipopony66
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    Cool How do they do that!!!!!

    Maybe someone here can shed some light on this for me. I can't seem to find a program that actually does what it says it does. I'm talking about NORMALIZING the volume of MP3 and WAV files. Why are MP3 files different volumes? Is there something stored int the MPEG header that determines this or what. I'd like to be able to play all of my MP3s at the same volume, but some files are louder than others. Does anyone know how this VOLUME information is stored? Any help is extremely appreciated.
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  2. Jun 14th, 2002, 02:54 PM #2
    crptcblade
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  3. Jun 14th, 2002, 04:05 PM #3
    parksie
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    When you normalise it, you usually change the actual file data values. The normal method is two-pass - first find the peak value, then scale everything so that the peak value is at 98% maximum data range. I don't think MP3s have a specific volume entry in them.
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  4. Jun 14th, 2002, 04:06 PM #4
    cafeenman
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    If you buy cd's you don't have to worry about it.
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  6. Jun 14th, 2002, 04:07 PM #5
    mendhak
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    Originally posted by parksie
    When you normalise it, you usually change the actual file data values. The normal method is two-pass - first find the peak value, then scale everything so that the peak value is at 98% maximum data range. I don't think MP3s have a specific volume entry in them.
    Actually, MP3s do have a volume entry method, which explains why some MP3s may 'appear' louder than others.
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  7. Jun 14th, 2002, 04:09 PM #6
    parksie
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    Originally posted by cafeenman
    If you buy cd's you don't have to worry about it.
    What if you've ripped them to MP3 so you can listen to them on your computer? Huh? HUH?! Hehe

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  8. Jun 14th, 2002, 09:17 PM #7
    hipopony66
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    Ok, two things!!!

    First of all, I'm not here to try and start some ethical debate, nor am I here for a lecture on RIAA regulations! I was just wondering about this because I don't play my cds anymore. I ripped all of my cds onto my computer because my computer IS my STEREO! I have the Klipsh THX surround speaker setup. Anyway, I noticed a big difference when I set up a playlist. For instance, the tracks from the Aerosmith cd I ripped are much louder than the ones from the Jimmy Buffet CD I ripped. I realize there is an obvious difference between the two, but When in a playlist, some songs play louder (Master Volume) than others. That's the reason for this post. If I could set like the master volume of all the files the same, then there wouldn't be a problem. Hope this makes sense.
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  9. Jun 15th, 2002, 02:11 AM #8
    mendhak
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    Re: Ok, two things!!!

    Originally posted by hipopony66
    If I could set like the master volume of all the files the same, then there wouldn't be a problem. Hope this makes sense.
    Simple. Just ask the singers to stand closer to the microphone.
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