UnityWebGLSpeech

The WebGL Speech package combines speech detection and speech synthesis.

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

See Also

• The WebGL for Speech Detection package is available in the Unity Asset Store. Online documentation is available.

• The WebGL for Speech Synthesis package is available in the Unity Asset Store. Online documentation is available.

• Try the Unity WebGL Speech Demos

Supported Platforms

• WebGL

• Mac Standalone (using Speech Proxy)

• Mac Unity Editor (using Speech Proxy)

• Windows Standalone (using Speech Proxy)

• Windows Unity Editor (using Speech Proxy)

Note: WebGL builds use the built-in browser to use the Speech API on PC/Mac/Android/iOS. In order to use the Speech API in standalone builds and in the Unity Editor, you will need to configure and run the free Speech Proxy. The demo scenes have game objects to support the WebGL Plugins and the Speech Proxy. With the Speech Proxy running, open a browser tab that relays Speech API calls to and from the browser. Only the WebGL Speech package in the Unity Asset Store has example scenes that show using Speech Detection and Speech Synthesis together.

Target

The Unity WebGL Speech Package is created for Unity version 5.3 or better. This includes support for Unity 2017.X, 2018.X, 2019.X, and 2021.X. This package combines the Unity WebGL Speech Detection and Unity WebGL Speech Synthesis packages. This package was originally created for the WebGL platform and supports other platforms using a Speech Proxy. This package requires a browser with the built-in Web Speech API, like Chrome. Speech detection and synthesis requires an Internet connection. The browser compatibility indicates which browsers have the Speech API implemented. The languages page shows what languages are supported by the Speech API.

Changelog

1.0 - Initial creation of package

1.1 - Added support for Speech Proxy

1.2 - Minor fixes

1.3 - Added support for speech detection/synthesis in edit mode

1.4 - Added support for MacOS for play-mode and edit-mode

1.5 - Added example without GUI

1.6 - Added buffering for language data

1.7 - Cleaned up sample code

1.8 - Updated sample scenes to use default 5000 port

1.9 - Added support for 2018.1 and 2019.1.

1.10 - Added support for 2020.X

1.11 - Added support for 2021.X

1.12 - Added support for iOS 16.3.1

FAQ

• To avoid constant Microphone security prompts, host WebGL builds on secure HTTPS sites. Take a look at the online demos to see how that works.

• Speech can work on mobile as a WebGL build. Launch the Chrome browser app on mobile and load your WebGL page in the Chrome app.

• WebGL can take a long while to build. For faster development, try the Speech Proxy. This enables speech in the editor and standalone Windoows/Mac builds without the long wait times.

• Sometimes the browser speech mechanism can crash. It can happen. If speech stops working, just close all of the browser windows and relaunch which should fix the issue.

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

• The WebGLSpeechSynthesis plugin now adds a full page div named divActivateSpeechAPI that initializes the Speech API when clicked to work around the new browser security. An alternative div element named divActivateSpeechAPI can be added to the HTML5 page if you want to customize the visual look of this user interaction.

• WebGL builds require iOS 15.5 or greater. Earlier versions will report a memory access violation.

• Unity 2021.X or later introduced a build issue when plugins use Unicode. Use the latest Unity 2021.X package from the Unity Asset Store rather than upgrading from an earlier package.

Scenes

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WebGLSpeech Detection

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Example01 - Dictation

The scene is located at Assets/WebGLSpeechDetection/Scenes/Example01_Dictation.unity.

The example source is located at Assets/WebGLSpeechDetection/Scripts/Example01Dictation.cs.

The WebGLSpeechDetection/Example01_Dictation demo is available online.

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Example02 - Dictation

The scene is located at Assets/WebGLSpeechDetection/Scenes/Example02_SpeechCommands.unity.

The example source is located at Assets/WebGLSpeechDetection/Scripts/Example02SpeechCommands.cs.

The WebGLSpeechDetection/Example02_SpeechCommands demo is available online.

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WebGLSpeech Synthesis

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Example01 - Synthesis

The scene is located at Assets/WebGLSpeechSynthesis/Scenes/Example01Synthesis.unity.

The example source is located at Assets/WebGLSpeechSynthesis/Scripts/Example01Synthesis.cs.

The WebGLSpeechSynthesis/Example01_Synthesis demo is available online.

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Example04 - Sbaitso Clone

The scene is located at Assets/WebGLSpeechSynthesis/Scenes/Example04SbaitsoClone.unity.

The example source is located at Assets/WebGLSpeechSynthesis/Scripts/Example04SbaitsoClone.cs.

The WebGLSpeechSynthesis/Example04_SbaitsoClone demo is available online.

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WebGLSpeech

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Example01 - Dictation Synthesis

The scene is located at Assets/WebGLSpeech/Scenes/Example01_Dictation_Synthesis.unity.

The example source is located at Assets/WebGLSpeech/Scripts/Example01DictationSynthesis.cs.

The WebGLSpeech/Example01_Dictation_Synthesis demo is available online.

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Example02 - Dictation Sbaitso

The scene is located at Assets/WebGLSpeech/Scenes/Example02_Dictation_Sbaitso.unity.

The example source is located at Assets/WebGLSpeech/Scripts/Example02DictationSbaitso.cs.

The WebGLSpeech/Example02_Dictation_Sbaitso demo is available online.

Support

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

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