What minimum frequency range is required to view the impact of both vowel and singer's formants in a spectrogram? 0-5,000 Hz.
What are the differences between narrowband and wideband spectrograms? Narrowband spectrograms divide the frequency spectrum into small segments, allowing us to see a visual of harmonics and time-related vocal events such as vibrato and the opening/closing of the glottis. Wideband spectrograms divide the frequency spectrum into broad swaths making individual harmonics unclear, but making the bandwidth of formants visible.
What types of analysis can be used to help a singer develop a chiaroscuro timbre? Any analysis that show the relative intensity of high and low frequency energy in sound. Most specificially, LPC, spectrograms and power spectra.
What type of analysis is best suited to help a singer develop an even vibrato? Narrowband spectrograms.
Why does realtime analysis feedback often work better for male voices than female voices? Men sing in a frequency range that permits a large number of harmonics to be visible on the spectrographic display. Female voices sing much higher, so there are often only a few harmonics visible on the display.
What is the minimum sample rate required to analyze frequencies in the 0-11kHz range? 22kHz
Why is formant analysis with LPC often inaccurate? Because accuracy is reduced (or eliminated) when F0 exceeds the expected frequency range of F1.
What is meant by the term closed quotient? The percent of time the glottis is closed vs. open during a cycle of vibration.
Why is EGG analysis considered to be noninvasive? Because it measure vocal fold contact patterns during vibration by placing electrodes on the sides of the neck, rather than sticking an instrument down someone's mouth or nose.
What is spirometry? A process in which lung capacity is measured.
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