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Current mp3gain alternatives for reducing clipping?, Clipping determined to have been caused by iTunes equalizer.
BrownNote80
post Dec 18 2012, 05:05
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Hi All,

First time poster, long time reader.
I've been using mp3gain for years, and I basically just want to know if there are any modern equivalents or alternatives to reduce clipping in mp3 files. This is all that I use mp3gain for. I do not use it to make all tracks or albums the same volume. I actually prefer there to be volume differences between songs and albums.

I'm surprised that "clipping" is not a more-discussed issue among all music listeners, not just audiophiles. I have countless examples of songs that, during their regular volume, even at 320 kbps, produce distortion that to my ears is unbearable. Like a fuzzy crackle whenever the levels push through the ceiling. After applying mp3gain to bring below the clipping level, these tracks sound perfect to my ears, and the clipping is totally eliminated. I can't imagine not lowering the gain on most tracks, and I guess that is why I'm surprised that there are not a plethora of programs that try to address it.

Anyway, mp3gain does what I need, which is "apply constant gain". I don't necessarily need track/album gain, target volume, or max-no-clip. I just like to be able to manually reduce tracks by a few decibels to eliminate clipping. Basically, my question is:

- Are there any other programs that do the same thing (i.e. reversible process to apply constant, custom gain reductions without loss in audio quality)? Are there any where the focus is removing clipping rather than equalizing volumes? I guess this is an odd thing to ask since mp3gain serves my purpose, but I can't help but think that this program is old, and support for it has run out. Surely there must be something equivalent that's more current? I've tried many recommended alternatives, but none of them seem to satisfy my needs - they're either way overboard (too many features I don't need), or they are missing key features. I'm also looking for a Mac equivalent, but none of the current Mac mp3gain ports have all of the following:
- Reversible
- Can analyze for clipping
- No loss in audio quality
- Can apply custom, constant gain changes to files/albums

Sorry for the long post, and many thanks for any help.

This post has been edited by BrownNote80: Dec 18 2012, 05:12
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ErectX
post Dec 23 2012, 18:33
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MP3s directly encoded from loudness war era CD audio often do clip (go above 0dB). Some hardware will have extra bits to handle this (by doing their actual decoding at -6dB or other techniques), but most decoders will decode this as a max-value clip.

If you want to manually reduce the output level of an MP3 without re-encoding, you can use mp3directcut.

Use the option edit->normalize, stop analysis and manually set the gain of the whole file to -12dB and press OK. Then run normalize again. If the level change after analysis is less than +12dB then apply it and save, because the decoded output of the original MP3 was clipped. If you want headroom for equalizers and post-processors that may exceed hardware clipping limits, you can reduce the post-analysis normalization level by -3dB or more.

This post has been edited by ErectX: Dec 23 2012, 18:34
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Posts in this topic
- BrownNote80   Current mp3gain alternatives for reducing clipping?   Dec 18 2012, 05:05
- - A_Man_Eating_Duck   Replaygain?   Dec 18 2012, 07:47
- - greynol   QUOTE (BrownNote80 @ Dec 17 2012, 20:05) ...   Dec 18 2012, 08:36
|- - bernlin2000   QUOTE (greynol @ Dec 18 2012, 01:36) QUOT...   Dec 19 2012, 20:54
- - Dynamic   To test whether it's clipping or expectation b...   Dec 18 2012, 12:03
- - 2Bdecided   It might not be expectation bias. It could be dodg...   Dec 18 2012, 13:02
- - greynol   Either way, TOS8 still applies. We can speculate ...   Dec 18 2012, 15:14
- - BrownNote80   Did any of you even read my question? I'm not ...   Dec 18 2012, 17:39
- - john33   At the expense of upsetting some people, I would s...   Dec 18 2012, 19:44
|- - greynol   QUOTE (john33 @ Dec 18 2012, 10:44) The g...   Dec 18 2012, 20:03
- - A_Man_Eating_Duck   Did you miss my itty bitty post at the top?   Dec 18 2012, 19:45
|- - BrownNote80   QUOTE (A_Man_Eating_Duck @ Dec 18 2012, 11...   Dec 18 2012, 19:53
- - BrownNote80   Ok, so you've piqued my interest. I followed D...   Dec 18 2012, 19:51
|- - greynol   QUOTE (BrownNote80 @ Dec 18 2012, 10:51) ...   Dec 18 2012, 20:13
- - BrownNote80   Since we're apparently so hell-bent on discove...   Dec 18 2012, 20:26
|- - saratoga   QUOTE (BrownNote80 @ Dec 18 2012, 15:26) ...   Dec 20 2012, 03:03
|- - Dynamic   QUOTE (saratoga @ Dec 20 2012, 02:03) For...   Dec 20 2012, 13:40
|- - skamp   QUOTE (saratoga @ Dec 20 2012, 03:03) For...   Dec 20 2012, 13:57
- - greynol   Try EQ-ing in such a way that none of the sliders ...   Dec 18 2012, 20:37
|- - BrownNote80   QUOTE (greynol @ Dec 18 2012, 12:37) Try ...   Dec 18 2012, 20:46
- - greynol   You're very welcome. I apologize for suggesti...   Dec 18 2012, 21:01
|- - BrownNote80   QUOTE (greynol @ Dec 18 2012, 13:01) You...   Dec 18 2012, 21:27
- - Dynamic   It sounds like you no longer need an alternative t...   Dec 19 2012, 02:38
- - greynol   Hi and welcome, I don't know what it is you t...   Dec 19 2012, 21:48
- - 2Bdecided   Some EQs (like the one in the Sansa clip) automati...   Dec 21 2012, 12:17
- - ErectX   MP3s directly encoded from loudness war era CD aud...   Dec 23 2012, 18:33


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