The [ant] 'anterior' and [cor] 'coronal' features, in combination with [high] and [back] (see 3. above) and [sibilant] (see 2. above) do most of the job of consonantal place classification. For example, for fricatives:
|
|
ɸ
|
f
|
θ
|
s
|
ʂ
|
ʃ
|
ç
|
x
|
χ
|
h
|
ʍ
|
|
ant
|
+
|
+
|
+
|
+
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
|
cor
|
-
|
-
|
+
|
+
|
+
|
+
|
+
|
-
|
-
|
-
|
-
|
|
labial
|
+
|
+
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
+
|
|
high
|
-
|
-
|
-
|
-
|
-
|
+
|
+
|
+
|
-
|
-
|
+
|
|
back
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
+
|
+
|
-
|
+
|
|
sibilant
|
-
|
-
|
-
|
+
|
-
|
+
|
-
|
-
|
-
|
-
|
-
|
|
distr
|
+
|
-
|
+/-
|
-
|
-
|
+
|
+
|
+
|
+
|
+
|
+
|
([ʍ] is a labial-velar fricative: the fricative equivalent of [w]).
Note that, by having abandoned [strident] (or replaced it with [sibilant]), we leave ourselves the problem of how to differentiate [ɸ] from [f]. Halle & Clements also define a feature [distr] (distributed) that they say can be used, amongst other things, to distinguish bilabial [+distr] and labiodental [-distr] sounds (nb. [θ] is [+distr] if it is lamino-dental, or [-distr] if it is apico-dental).
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