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on 2012-05-21 at 22:14 Andrew Lowe wrote: |
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> I have no intention of applying whatever process to the media machine, |
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> the tracks on that remain as ripped. I only want to "fiddle" the tracks |
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> on the memory stick. |
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your files are mp3, right? what you want to do is fairly simple, just use |
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media-sound/mp3gain |
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just direct your browser to http://mp3gain.sourceforge.net/ and get some |
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background. i haven't found much documentation on-line, just install it and |
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run mp3gain -h. |
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i guess this is what you need, because: |
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1. the application does not perform normalization (which would mean |
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decoding and re-encoding ), it only adjusts the replaygain tag in the mp3 |
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file; |
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2. the adjustment is not based on peak amplitude, but on the ReplayGain |
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"loudness" algorithm (don't know much of the details, but basically it's |
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RMS calculation with some psychoacoustic adjustments, based on the "lodness |
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curve"). |
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check these options: |
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-r - apply Track gain automatically (all files set to equal loudness) |
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-k - automatically lower Track/Album gain to not clip audio |
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-a - apply Album gain automatically (files are all from the same |
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album: a single gain change is applied to all files, so their |
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loudness relative to each other remains unchanged, but the average |
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album loudness is normalized) |
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