尝试在 Google 的文本转语音 API 中合成语音时出错

Question

我不知道为什么在响应以下代码时收到此错误。

# imports
from google.cloud import texttospeech_v1beta1 as texttospeech

AUDIO_PROCESS_ROOT = 'path_audio'  
VEL_NORMAL = 1.0
KEY_API_ROOT = 'path_key'

# set credentials environment
os.environ["GOOGLE_APPLICATION_CREDENTIALS"]=KEY_API_ROOT+"nome.json"

def TextToSpeech(text):

 client = texttospeech.TextToSpeechClient()
 input_text = texttospeech.types.SynthesisInput(text=text)
 voice = texttospeech.types.VoiceSelectionParams(language_code='en-US', name='en-US-Wavenet- B',ssml_gender=texttospeech.enums.SsmlVoiceGender.MALE)

 #speaking_rate --> responsavel pela taxa de velocidade no intervalo de [0.25 a 4.0], sendo 1.0 a velocidade normal padrão

 audio_config = texttospeech.types.AudioConfig(audio_encoding=texttospeech.enums.AudioEnc oding.MP3, speaking_rate=VEL_NORMAL)
 response = client.synthesize_speech(input_text, voice,audio_config)

 with open(AUDIO_PROCESS_ROOT+'audio_normal.mp3', 'wb') as out:
     out.write(response.audio_content)

TextToSpeech("Hi, how are you")

错误：

RetryError(u'Deadline of 600.0s exceeded while calling '

Answer 1

您是否为您的项目启用了 Text-To-Speech API？或者，如果您只是在本地运行它，您是否设置了应用程序默认凭据？您可能没有正确的权限并且对 Text-To-Speech API 的请求超时。

我能够按如下方式在 App Engine 上运行：

在app.yaml:

runtime: python37

在requirements.txt:

flask
google-cloud-texttospeech

在main.py:

from flask import Flask, Response
from google.cloud import texttospeech

app = Flask(__name__)

@app.route("/")
def hello():
    client = texttospeech.TextToSpeechClient()
    input_text = texttospeech.types.SynthesisInput(text="Hi, what's up")

    voice = texttospeech.types.VoiceSelectionParams(
        language_code="en-US",
        ssml_gender=texttospeech.enums.SsmlVoiceGender.MALE,
    )

    audio_config = texttospeech.types.AudioConfig(
        audio_encoding=texttospeech.enums.AudioEncoding.MP3
    )

    response = client.synthesize_speech(input_text, voice, audio_config)
    return Response(response.audio_content, mimetype='audio/mp3')