EMT Review Flashcards
Power
The voice needs breath to initiate phonation. Breath is the power however it must not be used powerfully. Instead, and in reference to one of the key principles of the Estill Model, “the breath must be free to vary according to what it meets on the way out”.
Source
Filter
Frequency
the rate at which a vibration occurs that constitutes a sound wave
Pitch
determined by the number of frequencies (vibrations) per second. Faster frequencies produce a higher pitch while slower frequencies produce a lower pitch. The standard pitch at which an orchestra tunes is A440 meaning there are 440 frequencies per second to produce A4 (the A above middle C).
Fundamental Frequency (Fo)
In a complex sound, multiple sine waves occur at once. The Fundamental frequency is the pitch that is perceived as the lowest partial.
Overtones can be heard above the fundamental frequency. Overtones and harmonics are collectively referred to as partial. The fundamental frequency is considered the 1st partial.
Harmonics
In a complex sound wave, frequencies above the fundamental are called overtones.
Overtones produced at a simple integer of the fundamental are considered harmonics (and inherent in musical instruments - with exception to a drum)
In musical terms, the predictable addition of each simple integer establishes the harmonic series (this can be heard in isolation to the fundamental in overtone singing).
The 1st harmonic is = 1st overtone but is considered the 2nd partial (with the fundamental frequency being the 1st partial)
Intensity
The amount of sound energy that passes through a particular area in one second. A high level of intensity will create a stronger sound pressure wave because of the amount of energy used to displace the molecules (and causing rarefraction) thus creating a more or less intense sound pressure wave.
This is measured by Watts divided by the area sound covers in square meters. This is called decibels (dB)
Loudness
The relation between intensity of sound pressure wave in relation to the threshold of hearing. This is measured in decibels.
Hz
Is the unit of cycles per second (which determines frequency and perceived pitch)
kHz
1000 Hertz
dB
The unit of measurement used to describe the amount of watt (energy) of a sound pressure wave. It is calculated by dividing the number of watts with the area of square meters the sound covers.
Signal
Sound waves
Tone
Noise
Interharmonic noise
Bernoulli Effect
How do true vocal folds vibrate?
How does vocal fold vibration generate tone?
How does closed phase relate to subglottal air pressure?
Formants
Voice quality
Vowels