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Lex Runtime V2  >  Structures  >  AudioInputEvent

AudioInputEvent

Structure Class

AudioInputEvent dataclass

Represents a chunk of audio sent from the client application to Amazon Lex V2. The audio is all or part of an utterance from the user.

Amazon Lex V2 accumulates audio chunks until it recognizes a natural pause in speech before processing the input.

Attributes

audio_chunk class-attribute instance-attribute 
audio_chunk: bytes | None = None

An encoded stream of audio.

client_timestamp_millis class-attribute instance-attribute 
client_timestamp_millis: int = 0

A timestamp set by the client of the date and time that the event was sent to Amazon Lex V2.

content_type instance-attribute 
content_type: str

The encoding used for the audio chunk. You must use 8 KHz PCM 16-bit mono-channel little-endian format. The value of the field should be:

audio/lpcm; sample-rate=8000; sample-size-bits=16; channel-count=1; is-big-endian=false

event_id class-attribute instance-attribute 
event_id: str | None = None

A unique identifier that your application assigns to the event. You can use this to identify events in logs.