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Vocal Pedagogy
Second test
48
Music
Undergraduate 4
11/06/2012

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Term
Compression
Definition
A slight pressurization of air molecules.
Term
Rarefaction
Definition
a depressurization of air molecules.
Term
Period
Definition
One full cycle of vibrations (compressions and rarefaction)
Term
Aperiodic
Definition
Multiple, irregular periods. Periods are of random duration and therefore do not create an identifiable pitch.
Term
Sinewave
Definition
A type of graph, a center line represents equilibrium, that is of zero pressure. anything above the line is compression, anything below the line is rarefaction.
Term
Frequency
Definition
the number of periods that occur each second within a sound wave.
Term
Hertz
Definition
the derived SI unit of frequency; the frequency of a periodic phenomenon that has a periodic time of 1 second; 1 cycle per second
Term
Wavelength
Definition
The spacial separation between each compression/compression
wave. usually indicated with the greek symbol Lambda.
Term
Properties of Short Wavelengths
Definition
Travel in straight lines if they encounter an obstacle in their path, they will be reflected in another direction.
Term
Properties of Long wavelengths
Definition
Less directional and tend to bend around obstacles and continue on their original path.
Term
Amplitute
Definition
the magnitude of the compression's and rarefaction's within a sound wave. The most common unit of measurement is the decibel, abbreviated dB.
Term
Decibles
Definition
the dB scale is logarithmic, allowing large changes in amplitude to be indicated by relatively small numerical changes.
Term
Spectral Envelope
Definition
A visual graph of timbre. Indicate the strength of harmonics. (a signature sound of a unique timbre)
Term
Spectral Slope
Definition
The rate at which harmonics diminish in amplitude as they rise in frequency.
Term
Fundamental frequency
Definition
The lowest frequency in a complex wave. Musical pitch is determined by this.
Term
harmonic Series
Definition
the series of twelve harmaonics. Can only be present in the following intervallic patterns in ascending order. unison, octave, perfect fifth, perfect fourth, major third, minor third, minor third, major second, major second, major second major second, and minor second.
Term
Harmonic Overtones
Definition
Whole number multiples of the fundamental frequency, fundamental is the first.
Term
Inharmonic Overtones
Definition
Inharmonic overtones are not whole number multiples of the fundamental
Term
Timbre
Definition
is the result of the unique pattern of overtones present in each musical sound All instruments and voices produce a fundamental frequency and overtones.
Term
Power Spectrum
Definition
Represents timbre, acoustic analysis of a sound.
Term
Source/filter theory? (linear only)
Definition
The word source refers to the periodic (having frequency) sound generated by the oscillating vocal folds. the word filter refers to the resonators and articulators of the vocal tract.
Term
Resonance Peak
Definition
Peaks that represent areas of resonance.
Term
Resonance Trough
Definition
are places where sound is attenuated on a spectral envelope.
Term
Formant
Definition
The resonance peaks of the vocal tract that result in vowels and other changes in timbre are called formants. A formant is a resonance of the vocal tract.
Term
Vowel Formants
Definition
A specific timbre or spectral envelope- an acoustic signature, so to speak, the spectrum will always be about the same.
Term
Cardinal Vowel
Definition
I-E-A-0-U Typical formant frequencies are cited for men and women, These figures are averages for speech, sung vowels almost always will be somewhat different.
Term
Formant Regions
Definition
The range at which the formants are best resonant.
Term
Formant Tuning
Definition
the changing of a specific formant to adapt it for its certain situation.
Term
Singer's Formant
Definition
Produced by clustering the third, fourth and fifth vocal tract formants tightly together within a narrow frequency range. Gives extra amplification to harmonics in the frequency range of approximately 2,400Hz-3200Hz
Term
Mode 1
Definition
includes chest voice, operatic head voice and voce finta in men, and chest voice and heavy belting in women. The vocal folds are thickened by contraction of the TA muscles, resulting in greater mass per unit of length and a square-shaped glottis when viewed in frontal cross section. (Amplitude of vibration is high)
Term
Mode 2
Definition
Falsetto in men, and head voice in women. Pitch modulation relies more heavily on contraction of the cricothyroid muscles which simultaneously elongate and thin the vocal folds. The glottis assumes a triangular shape in cross section with a narrow area of vocal fold contract during phonation. Amplitude of vibration is low.
Term
Belting
Definition
Mode 1 is the glottal source and resonance is tuned to avoid obvious violations of register. in belting the balance is almost completely shifted to the chiaro side with a bright, brassy timbre, Spectral analysis reveals strong harmonic overtones. Very different from the classical ideal.
Term
Falsetto
Definition
controversial, loud well supported mode 2 production with efficient glottal closure. others think it is a light, easy voice production that can serve as a bridge into the upper extension and mode 1 vibration.
Term
Resonance
Definition
The intensification(enhancement) and enriching(Change in timbre) of a musical tone by supplementary vibration.
Term
Forced Resonance
Definition
for string instruments, requires direct mechanical connection of the vibrator to the resonator.
Term
Free Resonance
Definition
(human voice)The vibrations of air molecules and reflections of sound waves within a void
Term
Zero Crossing
Definition
the first peak of compression also known as null pressure found at 1/4 lambda and 3/4 lambda.
Term
forced resonator
Definition
mechanism that is caused to vibrate
Term
Free resonator
Definition
the structure must be hollow, have volume, and have an opening through which sound waves can exit.
Term
Quarter-wave resonator
Definition
(Woodwinds)have multiple resonance frequencies and allows for different pitches.
Term
Resonance series
Definition
????
Term
Standing wave
Definition
when two opposing waves combine.
Term
Destructive interferance
Definition
two waves super imposed to form a resultant wave of greater or lower amplitude, (usually waves are from the same source, or have nearly the same frequency)
Term
Resonance Frequency
Definition
how often resonance occurs, The formula is. Length of resonator tube(divided by) the time it takes for a cycle.
Term
Primo Passaggio: Male & Female
Definition
Primo is first female: between c4 and A4 mode 2 replaces mode 1 and women modify vowels to closed position.
Male: Non event, f3 to c4 and the larynx is likely to elevate.
Term
Secondo Passaggio Male & Female
Definition
Second passage- Male: c4 and a4 pitches lying beyond this point are said to be in the operatic head voice or upper extension.pitches below, within, and above these transition zones have one thing in common they share Mode 1 as their glottal source.
Female: E5 to A5- breath support must be carefully modulated to avoid excess subglottal pressure.
Term
F1/2F0 lock or register voilation
Definition
Drop your jaw, move from one to the next.
Term
Whistle
Definition
Flageolet of a woman's voice, very high pitched, not pleasant to ear, used to perfect the woman's high notes.
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