[Speech] `transcribe_async` fails with sample_rate_hertz (16000) in RecognitionConfig

[kmonsoor]

In which file did you encounter the issue?

/home/ubuntu/python-docs-samples/speech/cloud-client/transcribe_async.py

Did you change the file? If so, how?

No

Describe the issue

Execution environment

$ python
Python 2.7.12 (default, Dec  4 2017, 14:50:18)
[GCC 5.4.0 20160609] on linux2

$ pip freeze | grep google
gapic-google-cloud-speech-v1==0.15.3
google-api-python-client==1.6.4
google-auth==1.1.1
google-auth-httplib2==0.0.2
google-cloud-core==0.27.1
google-cloud-speech==0.29.0
google-gax==0.15.15
googleapis-common-protos==1.5.2
proto-google-cloud-speech-v1==0.15.3

Command

$ python transcribe_async.py gs://12345-aud-transcription/5951794679150403267.mp4.flac

Output

Traceback (most recent call last):
  File "transcribe_async.py", line 100, in <module>
    transcribe_gcs(args.path)
  File "transcribe_async.py", line 78, in transcribe_gcs
    operation = client.long_running_recognize(config, audio)
  File "/usr/local/lib/python2.7/dist-packages/google/cloud/gapic/speech/v1/speech_client.py", line 250, in long_running_recognize
    options), self.operations_client,
  File "/usr/local/lib/python2.7/dist-packages/google/gax/api_callable.py", line 452, in inner
    return api_caller(api_call, this_settings, request)
  File "/usr/local/lib/python2.7/dist-packages/google/gax/api_callable.py", line 438, in base_caller
    return api_call(*args)
  File "/usr/local/lib/python2.7/dist-packages/google/gax/api_callable.py", line 380, in inner
    gax.errors.create_error('RPC failed', cause=exception))
  File "/usr/local/lib/python2.7/dist-packages/google/gax/api_callable.py", line 376, in inner
    return a_func(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/google/gax/retry.py", line 68, in inner
    return a_func(*updated_args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/grpc/_channel.py", line 507, in __call__
    return _end_unary_response_blocking(state, call, False, deadline)
  File "/usr/local/lib/python2.7/dist-packages/grpc/_channel.py", line 455, in _end_unary_response_blocking
    raise _Rendezvous(state, None, None, deadline)
google.gax.errors.InvalidArgumentError: InvalidArgumentError(RPC failed, caused by <_Rendezvous of RPC that terminated with (StatusCode.INVALID_ARGUMENT, sample_rate_hertz (16000) in RecognitionConfig must either be unspecified or match the value in the FLAC header (8000).)>)

Quickfix

Changing the value to 8000, or commenting out the line: https://github.com/GoogleCloudPlatform/python-docs-samples/blob/master/speech/cloud-client/transcribe_async.py#L44

[nnegrey]

Hi,

For different audio files, you'll have to modify the "Sample Rate Hertz" based on the audio file as they each have their own Sample Rate Hertz.

Let me know if that helps!