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A stop with no audible release, commonly called an unreleased stop, is a stop consonant with no release burst: no audible indication of the end of its occlusion (hold). In the International Phonetic Alphabet, lack of an audible release is denoted with an upper-right corner diacritic () after the consonant letter: , , .〔The diacritic may not display properly with some fonts, appearing above the consonant rather than after it. In such cases , , may be used instead.〕 Audibly released stops, on the other hand, are not normally indicated. If a final stop is aspirated, the aspiration diacritic is sufficient to indicate the release. Otherwise, the "unaspirated" diacritic of the Extended IPA may be employed for this: ''apt'' . ==English== In most dialects of English, the first stop of a cluster has no audible release, as in ''apt'' , ''doctor'' , or ''logged on'' . Although such sounds are frequently described as "unreleased", the reality is that the two consonants overlap so that the release of the first takes place during the hold of the second, masking the first consonant's release and making it inaudible. This can lead to cross-articulations that seem very much like deletions or complete assimilation. For example, ''hundred pounds'' may sound like but X-ray and electropalatographic studies demonstrate that inaudible and possibly weakened contacts may still be made, so that the second in ''hundred pounds'' does not entirely assimilate a labial place of articulation, but rather co-occurs with it. Such sounds may occur between vowels, as in some pronunciations of ''out a lot''. The overlap here appears to be with a glottal stop, : the is pronounced, and since it is between vowels it must be released, but its release is masked by the glottal stop.〔('no (audible) release' ), ''John Wells's phonetic blog'', 2012 March 14.〕 The term "unreleased" is also used for a stop before a homorganic nasal, as in ''catnip''. In such cases, however, the stop is released as a nasal, in a ''nasal release'', and so is more precisely transcribed . 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「no audible release」の詳細全文を読む スポンサード リンク
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