Azure Speech Studio export as riff-8khz-8bit-mono-mulaw

Creighton, Sean 1

I'm using Speech studio for text to speech. Is there a way to export the .wav file directly out of Speech Studio using riff-8khz-8bit-mono-mulaw format?

romungi-MSFT 41,961 Reputation points Microsoft Employee

2022-09-01T14:28:36.217+00:00

@Creighton, Sean I hope the below clarification helped to check if you can generate the required file using the SDK. Thanks!!

1 answer

romungi-MSFT 41,961 Reputation points Microsoft Employee

2022-08-26T12:08:39.763+00:00

@Creighton, Sean Are you using the audio content creation tool from the speech studio? If Yes, Then you have an option to export a .wav file using the export option from the studio?

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Creighton, Sean 1 Reputation point

2022-08-26T14:15:48.8+00:00

You are correct on what I am using it for. The .wav file that is produced comes out in PCM format. I am needing it to be in MU-law format. I can take the .wav file from speech studio, and put it in another program to convert to the format I need. I've got several hundred of these that I need to do, so I was hoping to eliminate a step if there is a way Speech Studio could do it in MU-law.

romungi-MSFT 41,961 Reputation points Microsoft Employee

2022-08-29T07:10:48.407+00:00

@Creighton, Sean The speech studio settings do not provide an option to download in this format. You could use the SDK and set the custom audio format though.

speech_config.set_speech_synthesis_output_format(speechsdk.SpeechSynthesisOutputFormat.Riff8Khz8BitMonoMULaw) synthesizer = speechsdk.SpeechSynthesizer(speech_config=speech_config, audio_config=None) result = synthesizer.speak_text_async("Customizing audio output format.").get() stream = speechsdk.AudioDataStream(result) stream.save_to_wav_file("path/to/write/file.wav")
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