Most audio software these days offer either built-in or plugin
functionality that will attempt to level the volume of your MP3 files
so that you aren't turning the volume up to hear soft songs, then
getting blasted by louder ones. So why is it that even after turning
that option on, you sometimes notice a significant volume difference
between some songs? What's worse is when you're listening to songs from
the same album, and the volumes jump around abnormally after applying
volume normalization.
The problem is that the vast majority of
audio player programs use peak amplitude analysis to determine how
"loud" a song is and normalize based on that, rather than doing a more
comprehensive analysis of the frequencies that impact how loud the
music actually sounds. But even those that do a more comprehensive
analysis fail to consider songs within the context of the album they
belong to.
Luckily, there's a great little utility called
MP3 Gain that does lossless volume analysis and adjustment based on David Robinson's
Replay Gain
algorithm, as well as allowing for the volume of entire albums to be
processed. MP3 Gain has been around for a number of years, and it
doesn't appear that it is being actively developed anymore, but since
MP3 technology hasn't changed much either that doesn't matter for our
purposes.
So, how do you fix an entire library of music?
Pretty easy, actually. MP3 Gain offers batch processing options that
allow you to process an entire folder at once. But if you collect music
albums, you'll want to do those separately. The reason is that MP3Gain
offers two modes: Radio and Album. Radio analysis and gain adjustment
will adjust all songs to the same maximum decibel level. Album mode
analyzes all of the songs in an album, essentially considering them to
be one entire song, then adjusts them all to a maximum decibel level,
but maintains their relative volume.
I have w700i phone . in my phone FM Sound is good . but mp3 sound very very low but other walkman series phone plays same song with good sound. and other branded mobiles plays good sound.
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