Downmixes from stereo to mono file for mono encoding in MP2 format.
This property is used only if the EncodeFormats.FormatToUse property is set to ENCODING_FORMAT_MP2
This property is the same as entering the -a setting inside the Appendix D - TwoLame command line.
For further details about encoding in MP2 format refer to the EncodeMP2 class section.
For further information about available encoding formats see the EncodeFormatsMan class.