Acoustic Waveforms Acoustic Waveforms Simple Harmonic Motion ...

Speech Waveforms (9)
6. In this figure we
can compare the
three voiceless
stops of English
(followed by the
same vowel).
Notice that the
burst is strongest
for /t/ and that they
all have a
significant random
aspiration phase
following the burst.
Speech Waveforms (11)
31
8. Here we
compare the
affricates of
English. The burst
and aspiration of
/tS/ is similar to
the voiceless
stops. The /dZ/
aspiration is much
longer than for the
voiced stops and
the VOT is
negative.
Speech Waveforms (13)
33
10. For these two
voiced fricatives
we can see that
the regular voiced
component is
strong and the
irregular fricative
component is
relatively weak
only becoming
fairly strong near
the end of the /z/
35
Speech Waveforms (10)
7. Here we
compare the
three English
voiced stops.
The are all prevoiced
(negative
VOT) and the
bursts can be
seen just before
the vowel.
Speech Waveforms (12)
9. /f/ is a weak
fricative and /s/
is a strong
fricative. Both
are random. We
can clearly
differentiate the
strengths of
these two types
of stops here.
Speech Waveforms (14)
32
34
11. The /m/ and /n/
waveforms are
very similar (ignore
the creak). Their
waveforms can’t
be discriminated
but they can be
discriminated from
the more complex
and intense pattern
of the following
vowel.
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