This relates to amplitude of the signal, but factors out differences in the source which make amplitude an unsatisfactory measure of whatever "sonority" is about. those factors in the vocal tract configuration that increase resistance to airflow. See Hume & Odden ("Reconsidering ") for an account in terms of "impedance", i.e. There are phonological accounts which attempt to relate "sonority" to a physical property, namely properties of the vocal tract which result in minimal signal damping. "we would need to look at segments of high sonority"). something published in JASA, JoP, Phonetica) ever claim to quantify "sonority", but it is possible that some phonetic paper has referred casually to the phonological account (e.g. ![]() I don't think I have ever seen a phonetic paper (i.e. The term is a phonological one rather than a phonetic one, though given common assumptions about phonological properties, that implies (falsely IMO, but that's another matter) that it is a phonetic property, because phonological properties are widely thought to be really phonetic in nature. So my question is: is sonority conventionally a phonetic or a phonological property? Or are there two separate definitions of the word, one used in phonetics, and one used in phonology? This is violated only by the clusters /sp/, /st/, and /sk/, which some theories explain by calling those three individual phonemes rather than clusters ("presigmatized stops").īut if the sonority hierarchy applies to phonemes, rather than phones, doesn't that undermine its phonetic nature? The amplitude of a waveform doesn't change if we decide that /st/ is one phoneme or two. For instance, English syllable structure follows a "sonority sequencing constraint" where a less sonorous phone cannot be closer to the nucleus than a more sonorous one. However, I also see sonority brought up in phonological contexts. ![]() This seems like something that can be measured quantitatively: take the average amplitude of the phone in question, divide it by the average amplitude of the entire utterance, and you have a nice clean measured value. I've seen several mentions of "sonority" in different works, most of which define it as something like "how loud a particular sound is in relation to other speech sounds".
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