I think Leveling is completely safe. It just changes the volume.
If you level it too high, you can level it lower after. And it will be the same as before. ( no clipping induced )
From
http://mp3gain.sourceforge.net/faq.php :
Does normalizing the mp3 degrade its quality?
No. MP3Gain does not decode and re-encode the mp3 to change its volume. You can change the volume as many times as you want, and the mp3 will sound just as good (or just as bad!) as it did before you started.
There are only two dangers I can see with leveling.
1. You loose the information of the initial volume.
2. If you level by track instead of leveling by album, you can mess up a bit the intended variety of track volumes of the album.
Probably better to use album leveling if you listen mostly to classical music.
I think Leveling is completely safe. It just changes the volume.
If you level it too high, you can level it lower after. And it will be the same as before. ( no clipping induced )
From http://mp3gain.sourceforge.net/faq.php :
[quote]Does normalizing the mp3 degrade its quality?
No. MP3Gain does not decode and re-encode the mp3 to change its volume. You can change the volume as many times as you want, and the mp3 will sound just as good (or just as bad!) as it did before you started.[/quote]
There are only two dangers I can see with leveling.
1. You loose the information of the initial volume.
2. If you level by track instead of leveling by album, you can mess up a bit the intended variety of track volumes of the album.
Probably better to use album leveling if you listen mostly to classical music.