How can I transcribe a speech file with the Bing Speech API in Python? My speech file is longer than 15 seconds.
I'm aware that one may use the Bing Speech REST API in Python. https://gist.github.com/jellis505/973ea6de12508c7c720da4a074e7d065 gives an example in Python 2:
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import requests
import httplib
import uuid
import json
class Microsoft_ASR():
def __init__(self):
self.sub_key = 'YourKeyHere'
self.token = None
pass
def get_speech_token(self):
FetchTokenURI = "/sts/v1.0/issueToken"
header = {'Ocp-Apim-Subscription-Key': self.sub_key}
conn = httplib.HTTPSConnection('api.cognitive.microsoft.com')
body = ""
conn.request("POST", FetchTokenURI, body, header)
response = conn.getresponse()
str_data = response.read()
conn.close()
self.token = str_data
print "Got Token: ", self.token
return True
def transcribe(self,speech_file):
# Grab the token if we need it
if self.token is None:
print "No Token... Getting one"
self.get_speech_token()
endpoint = 'https://speech.platform.bing.com/recognize'
request_id = uuid.uuid4()
# Params form Microsoft Example
params = {'scenarios': 'ulm',
'appid': 'D4D52672-91D7-4C74-8AD8-42B1D98141A5',
'locale': 'en-US',
'version': '3.0',
'format': 'json',
'instanceid': '565D69FF-E928-4B7E-87DA-9A750B96D9E3',
'requestid': uuid.uuid4(),
'device.os': 'linux'}
content_type = "audio/wav; codec=""audio/pcm""; samplerate=16000"
def stream_audio_file(speech_file, chunk_size=1024):
with open(speech_file, 'rb') as f:
while 1:
data = f.read(1024)
if not data:
break
yield data
headers = {'Authorization': 'Bearer ' + self.token,
'Content-Type': content_type}
resp = requests.post(endpoint,
params=params,
data=stream_audio_file(speech_file),
headers=headers)
val = json.loads(resp.text)
return val["results"][0]["name"], val["results"][0]["confidence"]
if __name__ == "__main__":
ms_asr = Microsoft_ASR()
ms_asr.get_speech_token()
text, confidence = ms_asr.transcribe('Your Wav File Here')
print "Text: ", text
print "Confidence: ", confidence
However, the Bing Speech REST API cannot convert audio files longer than 15 seconds according to https://learn.microsoft.com/en-us/azure/cognitive-services/speech/home:
