99 lines
3.8 KiB
Python
99 lines
3.8 KiB
Python
# Copyright 2017 Mycroft AI Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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from mycroft.tts.tts import TTS, TTSValidator
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from mycroft.configuration import Configuration
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class PollyTTS(TTS):
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def __init__(self, lang="en-us", config=None):
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import boto3
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config = config or Configuration.get().get("tts", {}).get("polly", {})
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super(PollyTTS, self).__init__(lang, config, PollyTTSValidator(self),
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audio_ext="mp3",
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ssml_tags=["speak", "say-as", "voice",
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"prosody", "break",
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"emphasis", "sub", "lang",
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"phoneme", "w", "whisper",
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"amazon:auto-breaths",
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"p", "s", "amazon:effect",
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"mark"])
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self.voice = self.config.get("voice", "Matthew")
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self.key_id = self.config.get("access_key_id", '')
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self.key = self.config.get("secret_access_key", '')
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self.region = self.config.get("region", 'us-east-1')
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self.engine = self.config.get("engine", "standard")
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self.polly = boto3.Session(aws_access_key_id=self.key_id,
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aws_secret_access_key=self.key,
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region_name=self.region).client('polly')
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def get_tts(self, sentence, wav_file):
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text_type = "text"
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if self.remove_ssml(sentence) != sentence:
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text_type = "ssml"
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sentence = sentence \
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.replace("\\whispered", "/amazon:effect") \
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.replace("whispered", "amazon:effect name=\"whispered\"")
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response = self.polly.synthesize_speech(
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OutputFormat=self.audio_ext,
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Text=sentence,
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TextType=text_type,
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VoiceId=self.voice,
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Engine=self.engine)
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with open(wav_file, 'wb') as f:
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f.write(response['AudioStream'].read())
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return (wav_file, None) # No phonemes
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def describe_voices(self, language_code="en-US"):
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if language_code.islower():
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a, b = language_code.split("-")
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b = b.upper()
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language_code = "-".join([a, b])
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# example 'it-IT' useful to retrieve voices
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voices = self.polly.describe_voices(LanguageCode=language_code)
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return voices
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class PollyTTSValidator(TTSValidator):
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def __init__(self, tts):
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super(PollyTTSValidator, self).__init__(tts)
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def validate_lang(self):
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# TODO
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pass
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def validate_dependencies(self):
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try:
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from boto3 import Session
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except ImportError:
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raise Exception(
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'PollyTTS dependencies not installed, please run pip install '
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'boto3 ')
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def validate_connection(self):
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try:
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if not self.tts.voice:
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raise Exception("Polly TTS Voice not configured")
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output = self.tts.describe_voices()
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except TypeError:
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raise Exception(
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'PollyTTS server could not be verified. Please check your '
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'internet connection and credentials.')
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def get_tts_class(self):
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return PollyTTS
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