In the window ENCODER Option, the EXPERT tab, Lame presets, I can not to select the VBR option. Why and how can I do?
Also in Audio Processing, Low passfilter, I can not add in box 19.7. How can I do?
The software is not available for testing or downloading. I have accessed their official website, but a generic page is listed instead. If the option is not available for selection, then it means a wrong setting is configured. As far as I know, the VBR is directly influenced by the stereo mode and the quality. Try changing those settings and then check the VBR mode.