Well, it's like this that the voice guide is extremely limited when it comes to reading out detailed things in the menu. Example, if I go into menu 2, select song creator, it doesn't read nearly anything at all. When I press the buttons, all it says is "recording popup" or "quantise dialogue popup." So you can't at all navigate the menus with the voice guide, the only thing you can do is select styles, turn off and on the channels of a style, change the volume of the style tracks, change the display language, and auto-power off. But, if I want to change something in the menus, because I'm completely blind, I usually use the app be my ai, that is a new function in be my eyes, I take a picture in seeing ai, and import the picture in be my eyes, so can I ask questions to the ai app, for example where is the assign button, then it says the assign button is in the middle, a little further down to the right at 2 o'clock, for example, but the fact that yamaha uses wav files for the voice guide is so outdated that you laugh at it the. Why can't they use a speech synthesizer? What does yamaha really do?