Meta Leveler

This plug-in allows you to change the level of a batch of files consistently.

The core purpose of this plug-in is to apply the same gain to all files, while being certain that a specific peak level never exceeds in any file. The unique gain that you want to apply is (possibly) reduced by the plug-in, once all files in the batch have been analyzed, and prior to actually applying the gain across the batch.

This metapass plug-in is exclusive to the Batch Processor window.


Applies the specified gain to each file. The actual gain can be lower and even negative, to not exceed the value specified in the Maximum Peak field.

Maximum Peak

Specifies the maximum peak level that any audio file should get at the end of the process.


Select whether WaveLab should refer to sample values (digital peaks) or to analog reconstructed values (true peaks).