8. Direct Line Speech とは
https://docs.microsoft.com/ja-jp/azure/cognitive-
services/speech-service/direct-line-speech
チュートリアル:Speech SDK を使用して音声でボットを有効にする
https://docs.microsoft.com/ja-jp/azure/cognitive-
services/speech-service/tutorial-voice-enable-your-bot-
speech-sdk
Windows Voice Assistant Client
https://github.com/Azure-Samples/Cognitive-Services-Voice-
Assistant/
Document | Direct Line Speech