It seems to be working on my end. Please follow these steps:
- These are the supported regions
- In this example, I will be using eastus.
Run the following command to get available voice list
python voiceclient.py --voices -region eastus -key xxxxxxxxxx
- I will be using one of the voices returned from previous command
Name: zh-CN-XiaoyouNeural, Description: {"Version":"20200520111712"}, Id: 89262f4e-76b6-41db-96fc-f9151e0954f6, Locale: zh-CN, Gender: Male, PublicVoice: True, Created: 2020-05-20T11:43:09Z
Then submit synthesis request:
python voiceclient.py --submit -region eastus -key xxxxxxxxxx -file en-US.txt -locale zh-CN -voiceId 89262f4e-76b6-41db-96fc-f9151e0954f6 -format riff-16khz-16bit-mono-pcm --concatenateResult
Also, please refer to the Long Audio API documentation and sample code usage details. Hope this helps!