| IPA – number | 175 |
| IPA – text | ɧ |
| IPA – image | |
| Entity | ɧ |
| X-SAMPA | x\ |
| Kirshenbaum | x^ or S~ |
| Sound sample | |
The so-called voiceless palatal-velar fricative (also called a voiceless dorso-palatal velar fricative, voiceless postalveolar and velar fricative, or voiceless coarticulated velar and palatoalveolar fricative) covers a range of similar sounds used in most dialects of Swedish and transcribed as /ɧ/. In Swedish, they are commonly referred to as the sje-sound, based on one of the more common spellings. They have very similar acoustic properties, not dissimilar from the /ç/ sound of southern Dutch or German ch after e or i, and feature distinct labialization. The International Phonetic Association describes /ɧ/ as "simultaneous ʃ and x", but this claim is disputed among phoneticians, including at least one former president of the IPA.[1]
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Features of the voiceless palatal-velar fricative:
This sound has been reported in certain dialects of Swedish, where it is most often known as the "sje"-sound.
Consider the following comments by Peter Ladefoged and Ian Maddieson:
Some dialects of Swedish have a fricative that has been said to have two or even three articulatory constrictions (Abercrombie 1967). We do not, however, think it is correct for more than one of these constrictions to be considered a fricative articulation. There is good data available on the Swedish sibilant fricatives (Lindblad 1980) allowing us to consider these sounds in detail.
[…]
The […] Swedish fricative, usually symbolized by ɧ, is the most interesting. Lindblad describes two common variants of Swedish ɧ. The first, for which he uses a different symbol, he calls a highly rounded, labiodental, velar or velarized fricative. […] Lindblad suggests that the source of frication is between the lower lip and the upper teeth, and it certainly appears to be so from his x-ray. He also demonstrates that the upper lip is considerably protruded in comparison with its position with that in the gesture of i. In addition to these anterior gestures, Lindblad notes that the "tongue body is raised and retracted towards the velum to form a fairly narrow constriction. (The presence of this constriction is constant, but not its width or location, which vary considerably.)" The posterior constriction in this variety of ɧ is not great enough to be itself a source of turbulence, so that, although this sound may have three notable constrictions, one in the velar region, one labiodental, and a lesser one between the two lips, only the labiodental constriction is a source of friction.
The second common variant of Swedish ɧ […] is described by Lindblad as a "dorsovelar voiceless fricative" pronounced with the jaw more open and without the lip protrusion that occurs in the other variety. Lindblad suggests that the difference between this sound and the more usual velar fricative x is that the latter "is formed with low frequency irregular vibrations in the saliva at the constriction" (Lindblad 1980, our translation). We infer from his descriptions and diagrams that this variant of ɧ has less frication, and may be slightly further forward than the velar fricative x commonly found in other languages. Lindblad claims that between the extreme positions of the labiodental ɧ and the more velar ɧ, "there are a number of intermediate types with various jaw and lip positions, including some with both anterior and posterior sound sources." [W]e doubt that it is possible to produce turbulence at two points in mouth simultaneously for ordinary linguistic purposes.
The most well-known case [of a possible multiply-articulated fricative] is the Swedish segment that has been described as a doubly-articulated voiceless palato-alveolar-velar fricative, i.e., ʃ͡x. The IPA even goes so far as to provide a separate symbol for this sound on its chart, namely ɧ. The sound in question is one variant of the pronunciation of the phonological element ʃ, which is highly variable in Swedish dialects, receiving pronunciations ranging from a palatalized bilabial sound to a velarized palato-alveolar one to a fully velar one. [I]t is not clear that any of the variants is actually a doubly-articulated fricative.– Ladefoged & Maddieson 1996:171–172, 330
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