Basic idea is pretty simple As a speaker goes from low to medium to high f0 the obvious changes in glottal pulse rate are often accompanied by significant changes in whats called the mode of phonation ID: 461552
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Slide1
Vocal Register
Basic idea is pretty simple: As a speaker goes from low to medium to high
f
0
, the obvious changes in glottal pulse rate are often accompanied by significant changes in what’s called the
mode of phonation.
What that means is that the
glottal pulse shapes
at low, medium, and high
f
0
are not always just scaled versions of one another; i.e. the
shape
of the glottal waveform, and not just the fundamental period, can differ from one another.Slide2
There
may be more, but there is
solid evidence for three vocal registers:
Modal
:
Covers a very large range of
f
0
s in the
middle of the f0 range.
Also called
chest register.
Falsetto
:
Covers
f
0
s
at the
high end of the
f
0
range.
Also called
head
or
loft register.
Glottal fry
:
Covers
f
0
s
at the
low end of the
f
0
range.
It goes by many other names:
vocal fry, pulse register, creaky voice, laryngealization
,
glottal rattle
,
glottal scrape
,
and
strohbass
.Slide3
What the Registers Sound Like
Modal
: You don’t need a demo of this. Modal what you hear most of the time. I’m using modal register right now, exclusively (or almost exclusively).
Glottal fry demo by annoying, dumb lady:
http://www.youtube.com/watch?v=UsE5mysfZsY
She does a great glottal fry
(
even when she’s not trying
),
but she is clueless about how the voice works, and everything she says about GF is wrong, except: (1) among some (mostly young) women it is a learned behavior that has for some reason become cool, (2) she (and many others) find it annoying.Slide4
http://www.youtube.com/watch?v=4uEKLqIUdX0
Another good glottal fry demo:Slide5
glottal frySlide6
Double-pulse glottal fry
:
Vocal folds open & close
twice
in quick succession each cycle.Slide7
What the Registers Sound Like
Falsetto:
http://www.youtube.com/watch?v=aiBykhGSWiY
The
f
0
is quite high for a man – definitely in the adult female range – but
the quality of the voice is very distinctive.
No one would get the idea that these are
women, even though
f0
is in the women’s range.
Why? Because the
mode of phonation
is not the same as a woman speaking in modal register. More than the f0 has changed – the vibratory pattern/pulse shape has changed. We’ll see how in a minute.Slide8
Shown below are glottal pulses at 3
f
0
s: 80 Hz, 200 Hz, and 300 Hz. These
signals show what life would look like in a world without changes in vocal register:
it may or may not look like it, but these glottal waveforms have exactly the
same basic shape.
The
modal shape
is stretched at low f0, contracted at higher f0, but otherwise
the glottal waves are identical
.Slide9
On Whiteboard
: Show wave shapes and spectrum envelopes for modal, glottal fry, falsetto – using time as a percentage of one period.Slide10