If you are looking for a simple way to create video subtitles for your karaoke songs, you may benefit from an application like Sayatoo SubtitleMaker (formerly known as Sayatoo KaraTitleMaker). It allows you to record lyrics and save them to KAX or AVI files, which can be processed in various video editors.

The interface has a dark theme that can be changed into a lighter or blue version. To begin with, you can load a TXT or LRC file that contains lyrics for a particular song. You can write them manually within the application, but importing them can save you a lot of time and effort.

You can then load the song you are recording the lyrics for, enabling you to play it while you are recording the subtitles. This way, they can be synchronized perfectly with the audio track. Additionally, you can set actors and determine whether or not their names should be displayed in the output video file.

Sayatoo SubtitleMaker enables you to arrange lyrics on one or two rows and move them to any position on the screen. It's possible to modify the font type, color and style, apply a shadow effect, as well as slant or rotate the text. It is also possible to add multiple types of transitions between lines and specify which effect should be used to animate the lyrics.

Additionally, the application allows you to insert various types of signal indicators, consisting of a volume icon or a custom image file.

Sayatoo SubtitleMaker features a relatively intuitive user interface, which offers easy access to its basic functions. It also allows you to modify various advanced settings, which can be difficult to understand, however, since there is no documentation is included besides some daily tips and tricks. Overall, if you are looking for a straightforward application, designed to help you create video subtitle files for karaoke songs, you should try this.