IssueTracker

For the google streaming services, I am passing audio chunks to convert speech to text for dialect en-AU. but getting blank transcription. If I change dialect en-US it worked. But the customer is from Australia and it should work for en-AU.
 passing following configs
metadata = types.RecognitionMetadata(
            interaction_type=self.domain_params.get('interaction_type', 'DICTATION'),
            microphone_distance='NEARFIELD',
            original_media_type='AUDIO',
            recording_device_type='PHONE_LINE',
            original_mime_type='audio/wav',
            audio_topic=self.domain_params.get('audio_topic', 'Communicating with IVR')
        )

        config = types.RecognitionConfig(
            encoding=enums.RecognitionConfig.AudioEncoding.LINEAR16,
            sample_rate_hertz=8000,
            language_code='en-AU',
            max_alternatives=5,
            enable_word_time_offsets=True,
            speech_contexts=[a, b, c ,d ... z],
            model=name,
            enable_word_confidence=True,
            enable_automatic_punctuation=True,
            metadata=metadata,
        )