我正在处理Google Speech API found here提供的代码段。代码应足以将.wav文件转换为转录文本。
感兴趣的街区在这里:
def transcribe_file(speech_file):
"""Transcribe the given audio file."""
from google.cloud import speech
speech_client = speech.Client()
with io.open(speech_file, 'rb') as audio_file:
content = audio_file.read()
audio_sample = speech_client.sample(
content=content,
source_uri=None,
encoding='LINEAR16',
sample_rate_hertz=16000)
alternatives = audio_sample.recognize('en-US')
for alternative in alternatives:
print('Transcript: {}'.format(alternative.transcript))
首先,我认为代码可能已过时,sample_rate_hertz=16000
必须更改为sample_rate=16000
。
之后,我收到了这一行的错误:
alternatives = audio_sample.recognize('en-US')
阅读中
AttributeError: 'Sample' object has no attribute 'recognize'
我很好奇如何纠正这个问题。我似乎无法找到有关此方法的任何文档。也许它也需要更换。
答案 0 :(得分:1)
您使用github quickstart.py示例,因此我想知道它与文档Google Cloud Speech API class sample不同步。但它仍然 BETA 。
假设isinstance(audio_sample, <class Sample(object)>) == True
,
然后在你的
.recognize
alternatives = audio_sample.recognize('en-US')
应该是
之一async_recognize, streaming_recognize, sync_recognize
答案 1 :(得分:1)
您需要将文件读取为二进制文件,然后将service.speech().syncrecognize
与 body 参数(dict)一起使用,其中包含所有必需的参数,如:
请尝试以下方法:
with open(speech_file, 'rb') as speech:
speech_content = base64.b64encode(speech.read())
service = get_speech_service()
service_request = service.speech().syncrecognize(
body={
'config': {
'encoding': 'LINEAR16', # raw 16-bit signed LE samples
'sampleRate': 16000, # 16 khz
'languageCode': 'en-US', # a BCP-47 language tag
},
'audio': {
'content': speech_content.decode('UTF-8')
}
})
response = service_request.execute()
print(json.dumps(response))
请查看here,因为有类似的工作示例。