VoceVista home

Welcome to the VoceVista website!

We build products for analyzing vocal signals that can be used in a variety of ways. Although developed primarily to provide objective tools for singing teachers to help their students improve, our products are used by voice pathologists and other fields.

Our primary product is VoceVista ("visible voice") a unique hardware/software package which incorporates the two electronic signals most revealing of the singing voice (real-time spectrum analysis and electroglottograph) into an integrated, user-friendly package for PCs and Apple computers running Windows. Simple to operate, it is non-invasive and intended for use by those whose expertise concerns the singing voice, rather than signal processing. VoceVista displays the signals in combinations of three basic formats: spectrogram, power spectrum, and high time-resolution waveforms.


VoceVista is an outgrowth of a quest to get past the subjectivity that limits all descriptions of voice and to arrive at its factual, objective features. In the second half of the 20th century, spectrum analysis allowed us to peer into the patterns of frequency components that determine voice quality and the various vowels. By the mid-nineties affordable personal computers had developed to the point where they could display spectrum analysis in real time. At the Groningen Voice Research Lab Harm K. Schutte and Donald G. Miller, who were pursuing research on the singing voice in the wake of Janwillem van den Berg and William Vennard, decided to integrate the two most important non-invasive signals for the singing voice -- from a microphone and an electroglottograph -- in a computer program that would analyze and display them. With the assistance of James Doing, who figured prominently in the initial development of the program, VoceVista made its public debut at the national conference of National Association of Teachers of Singers (NATS) in St. Louis (USA) on the last day of 1996.

One year later Garyth Nair visited in Groningen, bringing knowledge of Richard Horne , an extraordinary programmer whose freeware spectrogram program "Gram" had attracted the attention of early users of spectrum analysis, among them Nair. Horne joined the enterprise, and he and Miller then began a cooperative, continuing upgrade of VoceVista as interest gradually grew among forward-looking singing teachers.

At a subsequent national conference of NATS (2008 in Nashville), interest in VoceVista rose dramatically when it was used to display to the public the pupils' spectrographic and EGG signals in a "wired master class." At the same conference Miller's book on VoceVista, Resonance in Singing: Voice Building through Acoustic Feedback was released to the public.

We have developed a significantly cheaper version of an electroglottograph (EGG) that is small, light and simple to set up. This device can be used in a number of fields, but when paired with VoceVista, it affords the teacher a powerful pedagogical tool that helps takes the mystery out of the teaching process.

See the EGGs for Singers website for more information.

Coming Soon!!

Read posts by Don Miller and experienced Fryers on the cutting edge in our new research blog!!!