This paper presents the state of the art of a phone and syllable segmentation program under NeXTStep with a graphically implemented user interface. It is based on a unique window technique that allows a concurrent visualization of the speech signal in different visual representations. Additionally, the user can output a selected part of the speech signal by means of the NeXT sound system. Representative key-pictures of sounds or certain sound clusters may be marked simultaneously with the help of an attached video recorder.

Keywords: Concurrent Processing on DSP, Multi-user System, Segmentation, Sonagram, Syllables