Transcript

What a listener has read of one audio track’s transcript: each segment’s latest version, less what was cut. apply each segment read for the track and cut on each interrupt for it; linesAt gives what to show as the audio plays. A segment’s final version is kept against later ones. Cuts are remembered, so a version that arrives after one is clipped as if it had arrived before. A segment is known by its seq within one run of the talker’s track, so create a new transcript when the talker starts over.

Properties

lines

readonly lines: TranscriptLine[];

Defined in: transcript.ts:79

Every segment held, in timeline order.

Methods

apply()

apply(segment): boolean;

Defined in: transcript.ts:71

Keep a segment’s version, clipped by the cuts so far; false if it changed nothing. Ignored: a version of a segment the talker already sent final, a segment that starts inside a range cut earlier (as audio arriving there late is), and an interim version of a segment a cut ended. A cut segment takes the talker’s final version, clipped: one whose audio ended before the cut is no longer cut.

Parameters

Parameter	Type
`segment`	`TranscriptSegment`

Returns

boolean

cut()

cut(range, positionUs?): void;

Defined in: transcript.ts:77

Apply an interrupt’s range, with the playout position now (PlayoutClock.position()). Audio before the position has been heard, so the cut starts at the later of fromUs and the position. It drops the segments that start in the cut, and ends the one playing there at its start, final and cut.

Parameters

Parameter	Type
`range`	`TranscriptCutRange`
`positionUs?`	`number`

Returns

void

linesAt()

linesAt(positionUs): TranscriptLine[];

Defined in: transcript.ts:81

The segments whose audio has started playing at this position, in timeline order; none while idle.

Parameters

Parameter	Type
`positionUs`	`number` \| `undefined`

Returns

TranscriptLine[]