
5.1 Offline processing 99
2. If, for instance, uou have a sine of 0 dB / 1 second followed by a sine of -6 dB / 3
seconds. This means there are 3 times more -6 dB material than 0 dB material. You
will see a peak of about 33% at 0 dB, and another peak of 100% at -6 dB.
This analysis is useful for learning about how the loudness of your music is distributed.
You can access this dialog in the Wave File Workspace via Analysis > Loudness distri-
bution....
For an explanation of each parameter and interface feature, click on , or the 'What's this?'
question mark icon. For more information see Getting Help
Related topics
Loudness
5.1.11 Loudness normalizer
This dialog allows you to adjust the loudness of a file. Because it relates to loudness as
opposed to maximum peak level, this tool works quite differently from the Level Normalizer. A
typical application is to specify a loudness, for example -12dB, and the Loudness Normalizer
processes the audio to match this level of loudness.
Like Gain Change, increasing the loudness to a certain value can introduce clipping. To avoid
this occurring, a peak limiter (the Peak Master plug-in) can be used as part of the process.
The Loudness Normalizer raises the loudness and limits peaks in the signal at the same time
(if needed), to achieve the target loudness.
In the case of stereo files, both channels are processed independently. This process happens
over several stages; analysis precedes the final rendering. The Loudness Normalizer dialog
gives access to useful statistics about the file and the Loudness distribution tool, and you
can choose to remove any DC offset in the file.
You can access this dialog from the Audio File Workspace via Process > Loudness nor-
malizer....
This function is also available as a batch processing plug-in. You can access it from Batch
Processing Workspace > Plug-ins window > Multipass Plug-ins > Loudness Nor-
malizer.
For an explanation of each parameter and interface feature, click on , or the 'What's this?'
question mark icon. For more information see Getting Help
Related topics
Loudness
DC Offset
Loudness distribution
WaveLab 7
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