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#74 normalize option on decode ...

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Josh Coalson
1
2007-07-24
2007-07-21
Anonymous
No

this would be a nice option to have ... i prepare alot of mp3's for my mp3 player by decoding a flac to wave with flac.exe, normalizing wave with a separate exe (because my mp3 player is old and doesn't recognize mp3gain), and then using lame to make an mp3 ... if i can normalize on decoding it would speed up this process.

Discussion

  • Josh Coalson
    Josh Coalson
    2007-07-24

    • priority: 5 --> 1
    • assigned_to: nobody --> jcoalson
     
  • Josh Coalson
    Josh Coalson
    2007-07-24

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    what do you mean by normalize? flac.exe can apply replaygain with the undocumented --apply-replaygain-which-is-not-lossless option.

     
  • Egor
    Egor
    2007-07-24

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    He normalises volume to full scale I guess
    http://en.wikipedia.org/wiki/Audio_normalization

    To the originator: there is a GUI application foobar2000 (http://www.foobar2000.org/) which can convert FLACs to MP3s, ReplayGain (http://en.wikipedia.org/wiki/Replay_Gain) can be applied during or after conversion.

     
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    replay_gain is a tag added to the file that tells the player to turn up or down its output volume. my mp3 player (a sandisk model of somekind ... you probably thought a software player like foobar, my bad) doesn't support reading these tags so it's useless. i have a process of decoding a flac, using a program i found through google to normalize, and then lame to make an mp3. the normalizer raises the overall volume so that all songs sound the same volume. i have the source for the normalizer program. josh, if you want it hit me up at thebrunger@yahoo.com

     
  • Egor
    Egor
    2007-07-25

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    Be sure to understand that ReplayGain can be applied like a DSP to source audio during conversion.

    Second, foobar2000 can 'apply RG to MP3 data', so even older mp3 hardware will play at replaygained volume. Add mp3s to a playlist, select them, scan for ReplayGain, then 'apply RG to MP3 data'. This procedure will change losslessly (without re-encoding) volume of the whole mp3 track according to ReplayGain tag in the file, tag will be changed too.