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Address review: use resolve_language, narrow delivery_mode type, update changelog

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- Replace custom LANGUAGE_MAP fallback in language_to_inworld_language with
  resolve_language(language, LANGUAGE_MAP, use_base_code=False) to match the
  pattern used by other services and restore the unverified-language warning
- Tighten delivery_mode type from str to Literal["STABLE", "BALANCED", "CREATIVE"]
- Update changelog entry to mention delivery_mode and language normalization
This commit is contained in:
TimTk
2026-05-13 21:43:02 +03:00
parent 39e7f9e354
commit 97f50c8aa2
2 changed files with 12 additions and 15 deletions
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4
changelog/4473.added.md
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@@ -1 +1,3 @@
- Added support for Inworld TTS v2 fields.
- Inworld TTS updates:
- Added `delivery_mode` setting (`STABLE`/`BALANCED`/`CREATIVE`) to `InworldTTSService` and `InworldHttpTTSService`, enabling the stability-vs-creativity tradeoff in `inworld-tts-2`.
- Added language support to `InworldTTSService` and `InworldHttpTTSService`. The `language` setting is now forwarded to the API, and a new `language_to_inworld_language()` helper normalizes Pipecat `Language` enums to Inworld's BCP-47 locale tags.

23
src/pipecat/services/inworld/tts.py
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@@ -60,27 +60,21 @@ from pipecat.frames.frames import (
)
from pipecat.processors.frame_processor import FrameDirection
from pipecat.services.tts_service import TextAggregationMode, TTSService, WebsocketTTSService
from pipecat.transcriptions.language import Language
from pipecat.transcriptions.language import Language, resolve_language
from pipecat.utils.tracing.service_decorators import traced_tts
def language_to_inworld_language(language: Language) -> str:
"""Convert a Language enum to an Inworld TTS language code.
Inworld TTS accepts BCP-47 language tags. For the generally available
languages, Inworld's Playground emits regional tags (e.g. ``en-US``,
``ru-RU``), so base Pipecat languages resolve to those canonical locales.
Regional variants can be used to nudge a voice toward a specific accent.
"""Convert a Language enum to an Inworld TTS BCP-47 language tag.
Args:
language: The Language enum value to convert.
Returns:
The corresponding Inworld language code. Base GA language enums are
normalized to Inworld's canonical regional locales. Other language enums
are returned as their BCP-47 string values.
The corresponding Inworld BCP-47 language tag (e.g. ``"en-US"``).
Unverified languages fall back to their BCP-47 string value with a warning.
"""
CANONICAL_LOCALES = {
LANGUAGE_MAP = {
Language.AR: "ar-SA",
Language.DE: "de-DE",
Language.EN: "en-US",
@@ -97,8 +91,7 @@ def language_to_inworld_language(language: Language) -> str:
Language.RU: "ru-RU",
Language.ZH: "zh-CN",
}
return CANONICAL_LOCALES.get(language, str(language))
return resolve_language(language, LANGUAGE_MAP, use_base_code=False)
@dataclass
@@ -117,7 +110,9 @@ class InworldTTSSettings(TTSSettings):
speaking_rate: float | None | _NotGiven = field(default_factory=lambda: NOT_GIVEN)
temperature: float | None | _NotGiven = field(default_factory=lambda: NOT_GIVEN)
delivery_mode: str | None | _NotGiven = field(default_factory=lambda: NOT_GIVEN)
delivery_mode: Literal["STABLE", "BALANCED", "CREATIVE"] | None | _NotGiven = field(
default_factory=lambda: NOT_GIVEN
)
_aliases: ClassVar[dict[str, str]] = {
"voiceId": "voice",