Quick reference card: Layers

To understand what each of these properties mean, check out the layer typology.

Layer	Scope	Alignment	Vertical peers	Data type	Primary notation	Segment-dependent	Project
comment	Span	Sub-interval	True	Text	English spelling	False	imported
dictionary_phonemes	Word	Complete interval	True	Phonological	DISC	False	phonology
foll_pause	Word	Complete interval	False	Numeric	Decimal	True	timing
foll_segment	Segment	Complete interval	False	Phonological	DISC	True	phonology
frequency_from_celex	Word	Complete interval	True	Numeric	Count	False	lexicon
frequency_in_corpus	Word	Complete interval	False	Numeric	Count	False	lexicon
lemma	Word	Complete interval	True	Text	English spelling (lowercase)	False	lexicon
lexical	Word	Complete interval	False	Text	English spelling	False	imported
morphemes	Word	Complete interval	True	Text	English spelling (lowercase)	False	lexicon
noise	Span	Sub-interval	True	Text	English spelling	False	imported
orthography	Word	Complete interval	False	Text	English spelling (lowercase)	False	(none)
overlap	Phrase	Sub-interval	False	Text	Boolean	False	timing
part_of_speech	Word	Sub-interval	False	Text	Treebank part-of-speech tags	False	syntax
phonemes	Word	Complete interval	False	Phonological	DISC	True	phonology
pronounce	Word	Complete interval	False	Phonological	DISC	False	imported
redaction	Phrase	Sub-interval	False	Text	English spelling	False	imported
segment	Segment	Complete interval	False	Phonological	DISC	True	(none)
speech_rate	Phrase	Sub-interval	False	Numeric	Decimal	True	timing
stress	Word	Sub-interval	False	Phonological	Stress markers	True	phonology
syllables	Word	Sub-interval	False	Phonological	DISC	True	phonology
turn	Phrase	Complete interval	False	Timing-only	(none)	False	timing
utterance	Phrase	Sub-interval	False	Timing-only	(none)	False	timing
word	Word	Complete interval	False	Text	English spelling	False	(none)

This table omits layers in the “temp” project because they’re not meaningful for end-users.

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