Bring System.Speech to .Net Core or add some alternative

[kolappannathan]

System.Speech API is not available in .Net Core or .Net standard. Currently, there are no alternatives for synthesizing audio locally in these frameworks. Kindly bring an API for this.

I am trying to migrate a project from .Net Framework to .Net Core but this is preventing it.

[danmoseley]

@preethikurup @terrajobst have we already reached out to owners of System.Speech? I don't recall working with that team.

[terrajobst]

@preethikurup @terrajobst have we already reached out to owners of System.Speech? I don't recall working with that team.

Yes, they are now part of Azure and there is a new offering. System.Speech is not evolved anymore.

[terrajobst]

We don't plan on bringing this .NET Framework API to .NET Core. See this announcement for details.

[kolappannathan]

@terrajobst Does .Net core has viable alternative option for local speech synthesis?

[duaneking]

I'm also blocked by not having this.

This System.Speech namespace is VITAL to the visually disabled community, as vital as System.Console is for everybody else. Not having this has been a HUGE DEAL.

We NEED a viable, LOCAL speech synthesis API. An Azure Service that has to be used over the network would not work for the disabled community and WILL NOT WORK.

[birbilis]

Maybe could use Microsoft.Speech functionality instead if System.Speech is not available

[kolappannathan]

@birbilis There is no such package as Microsoft.Speech. Did you mean
Microsoft.CognitiveServices.Speech? If yes, that package will not work without connecting to Azure.

[birbilis]

@kolappannathan there used to be a Microsoft.Speech one too, check my code at https://github.com/Zoomicon/SpeechLib/blob/master/SpeechLib.Recognition/SpeechRecognition.cs

[danmoseley]

Please move discussion to the open issue https://github.com/dotnet/wpf/issues/2935

[kolappannathan]

@birbilis Wow. I searched in Nuget.org and couldn't find the said package. Is it still available?

[blakepell]

The old SDK worked well and most importantly worked locally. The new one is about getting people to subscribe to it on Azure, which isn't that bad other than you have to be online for it it work. It's a shame this can't be done locally anymore.

[ststeiger]

I've ported it, if you need it:
https://github.com/ststeiger/VoiceRecognition/tree/master/System.Speech

However, the quality is borderline crap, I have no idea how you can get support for a particular language, and it only works on Windows.
(the speech sdk needs to be installed).
For some reason, more languages are available in the full .net framework version.

You better look for a more modern speech-sdk, such as from Facebook (wav2letter++), Baidu (deepSpeech2), Kaldi, Julius, CMUSphinx, Mozilla (DeepSpeech).

Google also has an excellent API for that, but it ain't particularly cheap. .