Chrome Speech Proxy

The Chrome Speech Proxy makes it possible to use the Speech API on non-WebGL platforms for Windows and Mac.

See Also

The WebGL For Speech Detection package is available in the Unity Asset Store.

The WebGL For Speech Synthesis package is available in the Unity Asset Store.

The WebGL Speech package is available in the Unity Asset Store.

Dependencies

• The Chrome Browser must be installed in order to use the proxy.

Intro

The Chrome Speech Proxy is a Console application that proxies speech data to the Unity engine. The proxy supports speech detection and speech synthesis. The proxy requires admin or sudo rights to host the HTTP server. The Chrome Browser and Unity communicate with the proxy and the proxy passes data between the Chrome Browser and Unity. The Chrome Browser supports 120+ languages.

Releases

• Windows: Download Chrome Speech Proxy Installer (Windows)

• Mac: Download Chrome Speech Proxy (Mac)

Quick Start

• Test your browser for compatibility with the Chrome Speech Demo

• Launch the proxy which should start on the default 5000 port.

• Verify the proxy is running by browsing localhost:5000

• Click Enable user interaction to enable the text-to-speech API.

Note: In December of 2018, Chrome added a speech restriction that the speak() method can't be invoked until a web page has some user interaction. https://www.chromestatus.com/feature/5687444770914304

Windows

1 Install and launch the proxy which creates a config file so that Unity knows where to find the proxy

2 Start Unity and connect

3 Unity proxy management is now able to Launch and Close the proxy

4 Unity proxy management can open and close Chrome Proxy Tab when the proxy is running

5 Close the proxy before changing the port in Unity

Mac

The Mac build uses the Mono.framework to launch the proxy.

1 Install the .Net Core for Mac

2 Unzip ConsoleChromeSpeechProxy.zip to a folder

3 Launch the proxy using the Mono.framework in the terminal

"/Library/Frameworks/Mono.framework/Versions/5.0.1/bin/mono32" "ConsoleChromeSpeechProxy.exe"

4 Close the proxy as Unity will be able to find and launch the proxy at this point

FAQ

User does not see Speech Detection or Speech Synthesis events firing.

• Completely close all Chrome browser windows and relaunch the browser.

User does not see Speech Proxy events

• Close all speech proxy tabs in the Chrome browser. Open a single Chrome Speech Proxy tab. Relaunch the sample.

The Speech Proxy doesn't launch

• The default port 5000 may already be in use. Try a port other than the default and relaunch the proxy.

Detection doesn't seem to be working

• Only one Proxy window should be open at a time. Also make sure no other browser tabs/windows are using the Microphone. With multiple microphone apps open, the browser doesn't know which one to give focus.

Support

Send questions and/or feedback to the [email protected] email.

Support is also available in Discord, you can reach me at tgraupmann.