VoiceAgentInputTranscription Class

Asynchronous input-audio transcription configuration. Extends the OpenAI Realtime transcription options with the Azure and MAI transcription models, custom speech models, and phrase hints.

Constructor

VoiceAgentInputTranscription(*args: Any, **kwargs: Any)

Variables

Name	Description
language	str The language of the input audio. Supplying the input language in ISO-639-1 (e.g. `en`) format will improve accuracy and latency.
languages	list[str] Possible languages of the input audio, in ISO-639-1 format. Supported by `gpt-transcribe` and `gpt-live-transcribe`.
keywords	list[str] Words or phrases to guide transcription of the input audio. Supported by `gpt-transcribe` and `gpt-live-transcribe`.
prompt	str An optional text to guide the model's style or continue a previous audio segment. For `whisper-1`, the prompt is a list of keywords. For `gpt-4o-transcribe` models (excluding `gpt-4o-transcribe-diarize`), the prompt is a free text string, for example "expect words related to technology". Prompt is not supported with `gpt-realtime-whisper` in GA Realtime sessions.
delay	str or str or str or str or str Controls how long the model waits before emitting transcription text. Higher values can improve transcription accuracy at the cost of latency. Only supported with `gpt-realtime-whisper` in GA Realtime sessions. Is one of the following types: Literal["minimal"], Literal["low"], Literal["medium"], Literal["high"], Literal["xhigh"]
model	str or VoiceAgentInputTranscriptionModel The transcription model identifier. Configure customer custom speech deployments in `custom_speech`. Required. Known values are: "whisper-1", "gpt-realtime-whisper", "gpt-4o-transcribe", "gpt-4o-mini-transcribe", "gpt-4o-transcribe-diarize", "gpt-transcribe", "gpt-live-transcribe", "mai-transcribe", and "azure-speech".
custom_speech	dict[str, str] Optional customer custom speech deployment configuration, keyed by locale.
phrase_list	list[str] Optional phrase hints that bias recognition toward domain terms.

Methods

as_dict	Return a dict that can be turned into json using json.dump.
clear	Remove all items from the dictionary.
copy
get	Get the value for key if key is in the dictionary, else default. :param str key: The key to look up. :param any default: The value to return if key is not in the dictionary. Defaults to None :returns: The value for key if key is in the dictionary, else default. :rtype: any
items
keys
pop	Removes specified key and return the corresponding value. :param str key: The key to pop. :param any default: The value to return if key is not in the dictionary :returns: The value corresponding to the key. :rtype: any :raises KeyError: If key is not found and default is not given.
popitem	Removes and returns some (key, value) pair :returns: The (key, value) pair. :rtype: tuple :raises KeyError: if the dictionary is empty.
setdefault	Return the value for key if key is in the dictionary; otherwise set the key to default and return default. :param str key: The key to look up. :param any default: The value to set if key is not in the dictionary :returns: The value for key if key is in the dictionary, else default. :rtype: any
update	Update the dictionary from a mapping or an iterable of key-value pairs. :param any args: Either a mapping object or an iterable of key-value pairs.
values

as_dict

Return a dict that can be turned into json using json.dump.

as_dict(*, exclude_readonly: bool = False) -> dict[str, Any]

Keyword-Only Parameters

Name	Description
exclude_readonly	bool Whether to remove the readonly properties. Default value: False

Returns

Type	Description
dict	A dict JSON compatible object

clear

Remove all items from the dictionary.

clear() -> None

copy

copy() -> Model

get

Get the value for key if key is in the dictionary, else default. :param str key: The key to look up. :param any default: The value to return if key is not in the dictionary. Defaults to None :returns: The value for key if key is in the dictionary, else default. :rtype: any

get(key: str, default: Any = None) -> Any

Parameters

Name	Description
key Required
default	Default value: None

items

items() -> ItemsView[str, Any]

Returns

Type	Description
ItemsView	a set-like object providing a view on the mapping's items

keys

keys() -> KeysView[str]

Returns

Type	Description
KeysView	a set-like object providing a view on the mapping's keys

pop

Removes specified key and return the corresponding value. :param str key: The key to pop. :param any default: The value to return if key is not in the dictionary :returns: The value corresponding to the key. :rtype: any :raises KeyError: If key is not found and default is not given.

pop(key: str, default: ~typing.Any = <object object>) -> Any

Parameters

Name	Description
key Required
default

popitem

Removes and returns some (key, value) pair :returns: The (key, value) pair. :rtype: tuple :raises KeyError: if the dictionary is empty.

popitem() -> tuple[str, Any]

setdefault

Return the value for key if key is in the dictionary; otherwise set the key to default and return default. :param str key: The key to look up. :param any default: The value to set if key is not in the dictionary :returns: The value for key if key is in the dictionary, else default. :rtype: any

setdefault(key: str, default: ~typing.Any = <object object>) -> Any

Parameters

Name	Description
key Required
default

update

Update the dictionary from a mapping or an iterable of key-value pairs. :param any args: Either a mapping object or an iterable of key-value pairs.

update(*args: Any, **kwargs: Any) -> None

values

values() -> ValuesView[Any]

Returns

Type	Description
ValuesView	an object providing a view on the mapping's values

Attributes

custom_speech

Optional customer custom speech deployment configuration, keyed by locale.

custom_speech: dict[str, str] | None

delay

Controls how long the model waits before emitting transcription text. Higher values can improve transcription accuracy at the cost of latency. Only supported with gpt-realtime-whisper in GA Realtime sessions. Is one of the following types: Literal["minimal"], Literal["low"], Literal["medium"], Literal["high"], Literal["xhigh"]

delay: Literal['minimal', 'low', 'medium', 'high', 'xhigh'] | None

keywords

Words or phrases to guide transcription of the input audio. Supported by gpt-transcribe and gpt-live-transcribe.

keywords: list[str] | None

language

The language of the input audio. Supplying the input language in ISO-639-1 (e.g. en) format will improve accuracy and latency.

language: str | None

languages

Possible languages of the input audio, in ISO-639-1 format. Supported by gpt-transcribe and gpt-live-transcribe.

languages: list[str] | None

model

The transcription model identifier. Configure customer custom speech deployments in custom_speech. Required. Known values are: "whisper-1", "gpt-realtime-whisper", "gpt-4o-transcribe", "gpt-4o-mini-transcribe", "gpt-4o-transcribe-diarize", "gpt-transcribe", "gpt-live-transcribe", "mai-transcribe", and "azure-speech".

model: str | _models.VoiceAgentInputTranscriptionModel

phrase_list

Optional phrase hints that bias recognition toward domain terms.

phrase_list: list[str] | None

prompt

An optional text to guide the model's style or continue a previous audio segment. For whisper-1, the prompt is a list of keywords. For gpt-4o-transcribe models (excluding gpt-4o-transcribe-diarize), the prompt is a free text string, for example "expect words related to technology". Prompt is not supported with gpt-realtime-whisper in GA Realtime sessions.

prompt: str | None

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