Text to speech is not working

Hello guys,
i was really hyped to try azure text-to-speech, but already the sample code isn't working.

This one from the offical page:
https://zcusa.951200.xyz/en-us/azure/cognitive-services/speech-service/get-started-text-to-speech?tabs=windows%2Cterminal&pivots=programming-language-python

> import os  
> import azure.cognitiveservices.speech as speechsdk  
>   
> # This example requires environment variables named "SPEECH_KEY" and "SPEECH_REGION"  
> speech_config = speechsdk.SpeechConfig(subscription=key, region=region)  
> audio_config = speechsdk.audio.AudioOutputConfig(use_default_speaker=True)  
>   
> # The language of the voice that speaks.  
> speech_config.speech_synthesis_voice_name='en-US-JennyNeural'  
>   
> speech_synthesizer = speechsdk.SpeechSynthesizer(speech_config=speech_config, audio_config=audio_config)  
>   
> # Get text from the console and synthesize to the default speaker.  
> print("Enter some text that you want to speak >")  
> text = input()  
>   
> speech_synthesis_result = speech_synthesizer.speak_text_async(text).get()  
>   
> if speech_synthesis_result.reason == speechsdk.ResultReason.SynthesizingAudioCompleted:  
>     print("Speech synthesized for text [{}]".format(text))  
> elif speech_synthesis_result.reason == speechsdk.ResultReason.Canceled:  
>     cancellation_details = speech_synthesis_result.cancellation_details  
>     print("Speech synthesis canceled: {}".format(cancellation_details.reason))  
>     if cancellation_details.reason == speechsdk.CancellationReason.Error:  
>         if cancellation_details.error_details:  
>             print("Error details: {}".format(cancellation_details.error_details))  
>             print("Did you set the speech resource key and region values?")  

I am using python 3.9 and downloaded Microsoft Visual C++ Redistributable for Visual Studio 2015, 2017, 2019, and 2022. Also i tried it to set the environment variables, but its also not working.

This is my output:

> Enter some text that you want to speak >  
> hello there  
> Speech synthesis canceled: CancellationReason.Error  
> Error details: USP error: timeout waiting for the first audio chunk  
> Did you set the speech resource key and region values?  

A new api key and a new text-to-speech module i also generated, i dont know what the problem is...

This code dont shows me any error, just creates a empty test.wav file:

> def synthesize_to_speaker():  
>     # Find your key and resource region under the 'Keys and Endpoint' tab in your Speech resource in Azure Portal  
>     # Remember to delete the brackets <> when pasting your key and region!  
>     speech_config = speechsdk.SpeechConfig(subscription=key, region=region)  
>     # In this sample we are using the default speaker  
>     # Learn how to customize your speaker using SSML in Azure Cognitive Services Speech documentation  
>     # audio_config = AudioOutputConfig(use_default_speaker=True)  
>     audio_config = speechsdk.audio.AudioOutputConfig(filename="file.mp3")  
>     synthesizer = speechsdk.SpeechSynthesizer(speech_config=speech_config, audio_config=audio_config)  
>     synthesizer.speak_text_async("Text Text Text wie geht es dir du fettes bier ich hau mir ne nudel nei")  
>   
>   
> synthesize_to_speaker()  

hope someone can help me.