Microsoft.CognitiveServices.Speech 

This NuGet package provides native and managed libraries for the Microsoft Cognitive Services Speech SDK. Documentation is available at https://aka.ms/csspeech.

This SDK allows you to use the Microsoft Cognitive Speech Service for remote conversation. See https://aka.ms/csspeech for more information.

This NuGet package provides native and managed libraries for Xamarin iOS with bitcode enabled. Documentation is available at https://aka.ms/csspeech.

Speech CLI (SPX) is a command line tool for using the Speech service without writing any code. See https://docs.microsoft.com/azure/cognitive-services/speech-service/spx-overview for more information.