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Fix Chinese in Google Cloud STT (#149155)

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tronikos 2025-07-24 01:08:58 -07:00 committed by GitHub
parent fcd514a06b
commit 53d77c4c10
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2 changed files with 23 additions and 3 deletions
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10
homeassistant/components/google_cloud/const.py
View File

@ -186,3 +186,13 @@ STT_LANGUAGES = [
"yue-Hant-HK",
"zu-ZA",
]
# This allows us to support HA's standard codes (e.g., zh-CN) while
# sending the correct code to the Google API (e.g., cmn-Hans-CN).
HA_TO_GOOGLE_STT_LANG_MAP = {
"zh-CN": "cmn-Hans-CN", # Chinese (Mandarin, Simplified, China)
"zh-HK": "yue-Hant-HK", # Chinese (Cantonese, Traditional, Hong Kong)
"zh-TW": "cmn-Hant-TW", # Chinese (Mandarin, Traditional, Taiwan)
"he-IL": "iw-IL", # Hebrew (Google uses 'iw' legacy code)
"nb-NO": "no-NO", # Norwegian Bokmål
}

16
homeassistant/components/google_cloud/stt.py
View File

@ -8,6 +8,7 @@ import logging
from google.api_core.exceptions import GoogleAPIError, Unauthenticated
from google.api_core.retry import AsyncRetry
from google.cloud import speech_v1
from propcache.api import cached_property
from homeassistant.components.stt import (
AudioBitRates,
@ -30,6 +31,7 @@ from .const import (
CONF_STT_MODEL,
DEFAULT_STT_MODEL,
DOMAIN,
HA_TO_GOOGLE_STT_LANG_MAP,
STT_LANGUAGES,
)
@ -68,10 +70,14 @@ class GoogleCloudSpeechToTextEntity(SpeechToTextEntity):
self._client = client
self._model = entry.options.get(CONF_STT_MODEL, DEFAULT_STT_MODEL)
@property
@cached_property
def supported_languages(self) -> list[str]:
"""Return a list of supported languages."""
return STT_LANGUAGES
# Combine the native Google languages and the standard HA languages.
# A set is used to automatically handle duplicates.
supported = set(STT_LANGUAGES)
supported.update(HA_TO_GOOGLE_STT_LANG_MAP.keys())
return sorted(supported)
@property
def supported_formats(self) -> list[AudioFormats]:
@ -102,6 +108,10 @@ class GoogleCloudSpeechToTextEntity(SpeechToTextEntity):
self, metadata: SpeechMetadata, stream: AsyncIterable[bytes]
) -> SpeechResult:
"""Process an audio stream to STT service."""
language_code = HA_TO_GOOGLE_STT_LANG_MAP.get(
metadata.language, metadata.language
)
streaming_config = speech_v1.StreamingRecognitionConfig(
config=speech_v1.RecognitionConfig(
encoding=(
@ -110,7 +120,7 @@ class GoogleCloudSpeechToTextEntity(SpeechToTextEntity):
else speech_v1.RecognitionConfig.AudioEncoding.LINEAR16
),
sample_rate_hertz=metadata.sample_rate,
language_code=metadata.language,
language_code=language_code,
model=self._model,
)
)