Abstract: Systems and methods are provided for generating queries suitable for evaluating graph comprehension capability. Embodiments of the present disclosure are based on the Sentence Verification Technique (SVT), an empirically validated framework for measuring an individual's comprehension of prose material. Compared to ad hoc methods for testing graph comprehension, embodiments of the present disclosure are less subjective, require less manual effort and subject matter expertise, and address the essential features of a given graph: values and relationships depicted, frames of reference, and style attributes. Embodiments of the present disclosure combat superficial comprehension by testing what the reader has encoded, as opposed to testing the reader's ability at visual recall or ability to look up data without reaching real comprehension.

Abstract: A method of speech processing includes receiving at least two separate, but temporally overlapping speech waveforms in real time; extracting a pitch waveform from each of the speech waveforms by segmenting the speech waveform pitch synchronously, fixing an analysis window size, and analyzing the speech waveform in real time; concatenating each pitch waveform by interpolating the pitch waveform at each pitch epoch, synthesizing a synthesis window size according to a desired speech playback speed, and generating a synthesized output pitch waveform; queuing each of the output waveforms so as to sequence each speech waveform serially one after the other such that the waveforms are mutually separated upon playback; and outputting each of the queued output waveforms to a selected playback device.