Week 3: Amplitude and Intensity; Air Pressures and Flows Flashcards
(14 cards)
Amplitude
Maximum degree of change in atmospheric pressure
Amplitude is related to
Pressure
Intensity is related to
Power
What is the perceptual correlate of amplitude/intensity?
Loudness - greater amplitude/intensity = louder sound
The decibel scale
The human auditory system responds to an large range of intensities (ratio scale)
Does 0 dB mean that there is silence?
No, it has the same standard
MPFR
Assessing the limits of vocal production in terms of adjustments to rate of vocal fold vibration
Dynamic range
Difference between speaker’s softest non-whisper phonation vs. loudest phonation
Difference between dynamic range and MPFR
Dynamic range
Range of amplitudes
Maximum amplitude - minimum amplitude
MPFR
Ranges od frequencies
Highest f0 - lowest f0
Voice range profile
Plots dynamic range across frequencies
Ps (sub glottal pressure)
The air pressure within the trachea below the larynx
P oral (Intraoral pressure)
The air pressure within the oral cavity
Two requirements to generate pressure for speech sounds
Adequate driving force and adequate valving of the exhalatory system
Maximum phonation time (MPT)
Longest amount of time a speaker can sustain /a/ in one continuous