Processing Precision
WaveLab Elements can load audio samples in many formats but processes them internally as 64-bit float samples.
Mixing inside WaveLab Elements is also done in 64-bit float. 32-bit PCM samples can be transferred to 64-bit float and back.
Plug-ins are processed in 64-bit float by default. You can also set the plug-in processing to 32-bit float.
You can set up the processing precision for plug-ins and for temporary files in the Audio tab of the Global Preferences.
Note
Processing in 64-bit float means double precision but slightly longer process time than 32-bit float.
Temporary files in 64-bit float have double precision but take longer to read and write than 32-bit float and their file size is twice as big.