senone
Definition - Sequential phoneme triplets that commonly recur in speech. English has more than 9000 of them.

Example Usages -

1. "The translator Mr Rashid demonstrated employs several improvements. For a start, it aims to identify not single phonemes but sequential triplets of them, known as senones. English has more than 9,000 of these. If they can be recognised, though, working out which words they are part of is far easier than would be the case starting with phonemes alone."
(Source: Economist, Conquestion Babble, Jan 5, 2013 )

2. Sometimes phones are considered in context. There are triphones or even quinphones. But note that unlike phones and diphones, they are matched with the same range in waveform as just phones. They just differ by name. That's why we prefer to call this object senone. A senone's dependence on context could be more complex than just left and right context. It can be a rather complex function defined by a decision tree, or in some other way.
(Source: CMUSphinx: Open Source Toolkit For Speech Recognition )



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