I searched and found lots of threads that discuss MP3Gain, even a few that mention this issue in passing, but not the answer I need. Anyone that can help a newbie understand?
I wanted to at least partially level out the volume on files I was copying to my iPod from Winamp. I did MP3Gain album analysis on these files I that copied from Winamp Media library using the gen_yar plugin. I then did Album Gain on the files. (Maybe I should have used track??) Most, (about 200 out of 250 were successfully put to between 86 and 91db using the 89 db default.
But…. Some, (approx 30 out of 250) ended up at 80 or below with track clipping on 8 of those. Of those 30 files, 5 of them ended up below 75db. 4 of these 5 below 75db files are track clipped. And indeed when I listen to these 25 -30 files on the iPod, they are much quieter.
What could be the reason for this? Did I even approach what I trying to do in the correct way?
Thanks.
Full Version: Specific question about my MP3Gain steps
Maybe some of these mp3's have glitches in them that are way above the level of the program material, thus the low replaygain values?
I suppose that is possible, but I don't hear anything when listening to them.
On another note: Is "album" analysis and gain really the best way to do this to a list of 250 MP3's from various artists?
On another note: Is "album" analysis and gain really the best way to do this to a list of 250 MP3's from various artists?
Not at all!
It can cause problems if one of your files have glitches, just like dreamliner77 said.
Example: http://www.hydrogenaudio.org/forums/index....showtopic=20444
It can cause problems if one of your files have glitches, just like dreamliner77 said.
Example: http://www.hydrogenaudio.org/forums/index....showtopic=20444
Besides, even if the tracks have no problems, scanning lots of files in album mode is a bad idea; the resulting volume might not be close enough to 89 dB.
Either scan them with track gain, or scan them per album with album gain, as you see fit.
Either scan them with track gain, or scan them per album with album gain, as you see fit.
QUOTE(shepard @ Oct 29 2005, 09:09 PM)
I searched and found lots of threads that discuss MP3Gain, even a few that mention this issue in passing, but not the answer I need. Anyone that can help a newbie understand?
I wanted to at least partially level out the volume on files I was copying to my iPod from Winamp. I did MP3Gain album analysis on these files I that copied from Winamp Media library using the gen_yar plugin. I then did Album Gain on the files. (Maybe I should have used track??) Most, (about 200 out of 250 were successfully put to between 86 and 91db using the 89 db default.
But…. Some, (approx 30 out of 250) ended up at 80 or below with track clipping on 8 of those. Of those 30 files, 5 of them ended up below 75db. 4 of these 5 below 75db files are track clipped. And indeed when I listen to these 25 -30 files on the iPod, they are much quieter.
What could be the reason for this? Did I even approach what I trying to do in the correct way?
Thanks.
I wanted to at least partially level out the volume on files I was copying to my iPod from Winamp. I did MP3Gain album analysis on these files I that copied from Winamp Media library using the gen_yar plugin. I then did Album Gain on the files. (Maybe I should have used track??) Most, (about 200 out of 250 were successfully put to between 86 and 91db using the 89 db default.
But…. Some, (approx 30 out of 250) ended up at 80 or below with track clipping on 8 of those. Of those 30 files, 5 of them ended up below 75db. 4 of these 5 below 75db files are track clipped. And indeed when I listen to these 25 -30 files on the iPod, they are much quieter.
What could be the reason for this? Did I even approach what I trying to do in the correct way?
Thanks.
An easier approach then MP3gain would be to use the built in SoundCheck feature to apply replaygain. I don't know if the winamp plugin will do this, but the foobar one will. It lets you copy MP3s to the ipod, and then enters the replaygain info into the Ipod's database automatically. That way they all play at the correct volume without having to run MP3gain on each file.
QUOTE(kjoonlee @ Oct 30 2005, 07:28 PM)
Besides, even if the tracks have no problems, scanning lots of files in album mode is a bad idea; the resulting volume might not be close enough to 89 dB.
Either scan them with track gain, or scan them per album with album gain, as you see fit.
Either scan them with track gain, or scan them per album with album gain, as you see fit.
Ok, thanks. that resulting volume not being close enough to 89 with album gain is really what happened. I did them again with track gain and they are all really close to 89. The help file in MP3Gain led me to think that track gain would give me a very unrealistic sound, but it seems to be ok. I probably did not understand the help file correctly.
Thanks
QUOTE(Mike Giacomelli @ Oct 30 2005, 07:44 PM)
An easier approach then MP3gain would be to use the built in SoundCheck feature to apply replaygain. I don't know if the winamp plugin will do this, but the foobar one will. It lets you copy MP3s to the ipod, and then enters the replaygain info into the Ipod's database automatically. That way they all play at the correct volume without having to run MP3gain on each file.
I'm pretty sure the Winamp plugin won't do what you describe the foobar plugin doing. How does the foobar plugin do it if it does not have to run on each file like MP3Gain does?
I have been told by several people that they are happy with MP3Gain. It's likely just a matter of me learning how best to use the program. But if foobar will get my Winamp playlists on to my iPod and do the volume fix at the same time, that may be easier.
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