Real-Time Spectrogram, Model 5129

The core CSL and Multi-Speech programs provide spectrograms a few seconds after signal acquisition. However, the Real-Time Spectrogram, Model 5129, provides spectrographic analysis in real time during signal acquisition. It provides a dual-screen, real-time, scrolling, spectrographic display of speech during input. The display is very similar to the DSP Sona-Graph. Spectrogram parameters such as color, dynamic range, and transform sizes (e.g., wideband vs. narrow-band) may be adjusted. A full-screen spectrogram can be analyzed with the time axis adjustable from one to four seconds. The user can then select which portion of the signal to save. This option is ideal for clinical biofeedback of vowels and consonants, classroom training, forensic screening, and for quickly previewing taped samples.

Real-Time Spectrogram presents high-resolution spectrograms in real time in either scrolling or swept mode. Dual screens can be used for instant comparison or targeting. In the figure above, the upper screen shows a narrow-band analysis, while the lower screen is a wideband analysis of different vocalizations.

The Value of Real-Time Spectrograms

The spectrogram has been well established in the professional literature as the most comprehensive display modality for clearly revealing speech characteristics. A spectrogram shows many aspects of voice and articulation simultaneously. Kay’s Real-Time Spectrogram Program provides a full-featured spectrogram display as the user speaks, without delay. For articulation training, dual screens can be used to place models on one screen and client’s attempts on the other.

Spectrograms can be generated in a variety of colors and analysis formats.

Easy to Use

Real-Time Spectrogram is very easy to use. One multi-tabbed dialog box controls all configuration selections of the spectrogram. Any adjustment of the analysis can be instantly applied to the displayed signal and to new recordings. All windows can be moved and resized before or after recording.

 
The program offers a full-featured 
spectrogram with control over all aspects of the
 analysis. Multiple selections of point sizes are
 provided to analyze all voices (i.e., adults and
 children).

The spectrogram display in Real-Time Spectrogram is very
 high resolution. It uses up to 24-bit color with full resolution
of screen.

Summary

Spectrograms are widely regarded as the most revealing display of speech. The Real-Time Spectrogram Program for CSL and Multi-Speech provides real-time, high-resolution spectrograms. It includes full-featured setup options to cope with any spectrogram requirement.

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