The Speech API (SAPI) is an application programming interface developed by Microsoft to allow the use of speech synthesis within Windows applications. When an audio file is played with players on a computer or on modern digital audio players, the text is displayed synchronously (in the same way, as lyrics for songs). The converter can save the synchronized text in external LRC files or in MP3 tags inside the audio files. The rules for the pronunciation correction use the syntax of regular expressions. This feature is useful when you want to change the spelling of words. The user can apply a special substitution list to improve the quality of the voice's articulation. The program uses various versions of Microsoft Speech API (SAPI) it allows us to alter a voice's parameters, including rate and pitch. It supports text file formats: AZW, AZW3, CHM, DjVu, DOC, DOCX, EML, EPUB, FB2, FB3, HTML, LIT, MOBI, ODP, ODS, ODT, PDB, PRC, PDF, PPT, PPTX, RTF, TCR, WPD, XLS, XLSX. The program can read the clipboard content, view text from documents, customize font and background color, control reading from the system tray or by the global hotkeys. The on-screen text can be saved as a WAV, MP3, MP4, OGG or WMA file. All computer voices installed on your system are available to the software. Balabolka is a Text-To-Speech (TTS) software tool.
