Normalize Audio.
Never touch the volume knob again
with our Normalizer!

MP3 Normalizers are commonly used to keep a common volume across all the tracks on a CD. This is particularly important when the music on the CD is from different artists or CDs.  

"There's a loudness race in the (pop) music industry, where every year levels are pushed closer and closer to the maximum by the use of dynamic range compression. Which means that a Britney Spears CD from 2000 can be louder than a metal track from 1985. And an orchestra playing at full belt (over 100dB peak SPL!!!) is quieter than either, because classical music CDs haven't entered into this loudness race.

So, simply, the tracks on a CD aren't at the volume they are supposed to be listened to. On an individual CD things are OK, but between CDs, you have to adjust your volume control a lot to get the tracks to the volume they're supposed to be listened to." -- source

CDMaster32's built-in normalizer does not use a peak normalizer like many other products on the market. Instead, CDMaster32 implements two types of algorithms to help ensure you never have to adjust the volume knob again. 

• The first algorithm uses the www.replaygain.org method for normalizing audio tracks. ReplayGain's technique is superior to the standard peak normalizer because it models how the human ear perceives volume and combines it with statistical processing to provide truly remarkable results.

• The second algorithm uses a form of Dynamic Range Compression where the home audio hobbyists can create files which can compete with many high end music studios. If enabled; CDMaster32 can detect when audio files have uneven volumes which exceed a certain threshold; and automatically balance those volumes out to given a more uniform volume across the entire file. Think of it as an automatic volume control.
  
  CDMaster32's Dynamic Range Compression routine works by measuring the volume across the file and compares the difference between the lowest and highest volumes against the threshold specified. If that threshold is exceeded; the routines will automatically increase the volume of the quieter parts of the file up to the Max Gain specified. The following graphic demonstrates the result of this process:
  

I invite you to download CDMaster32 for yourself to see just how easy it is to use our Normalizer. See a screen shot of our Normalizer.

Our standalone normalizer can be used with most features of CDMaster32 including:

• creating an AudioCD,
• CD Ripping,
• and File Conversion.

CDMaster32 has a lot of other features... check out our growing Tutorials section.

For more information of Audio Normalization see: Audio Normalization or Dynamic Range Compression by Wikipedia.

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CDMaster32 implements MP3Gain under the GNU Lesser General Public License.
CDMaster32's VLevel routines are licensed from Tom Felker's VLEVEL project under LGPL v2.1.