UnityAndroidSpeechRecognition

This repository is a Unity plugin for Android Speech Recognition (based on Java implementation). This is just a basic implementation which uses the inbuilt Android Speech Recognition. I have not implemented any functions to change any properties of speech recognition. I plan to add more things once I get more free time.

Usage

• You can first test out the SpeechRecognition.apk from here. You need a minimum of Android Lollipop to use this apk.
• Next, import SpeechRecognition.unitypackage into your Unity project. (Tested on Unity 5.1.1.f1)
• To include SpeechReconginition in your own project copy the contents of Plugins/Android/ into the same folder in your project.
• Have a look at TestPlugin.cs for an example usage.
• When you press the button, a speech recognition itent should pop up. This intent sends the recognized text to 'void onActivityResult(string Translation)' function of the object 'MainCamera' (it calls 'MainCamera' and not 'Main Camera').
• You can import TestSpeech to Android Studio to experiment with it (speechassist module is only important).
• Once you make changes and build the module you should have a speechassist-debug.aar file in TestSpeech/speechassist/build/outputs/aar folder. Rename this to speechassist-debug.zip and then unzip it. On unzipping you will get a classes.jar file which you will have to copy into Plugins/Android folder in Unity.
• If you make any changes to Andriod activites like UnityPlayerActivity please copy the manifest of speechassist module as well to Plugins/Android folder.
• One more thing to observe is that I have classes.jar in my libs folder of my AndroidStudio project. Have a look at this post to know where you can find it.

Note

• I have extended UnityPlayerActivity with my custom activity and forced to subsitute it by changing the manifest file. Though, this works it is undesirable when you want to make/use multiple plugins. An ideal way would be to create a custom activity that will be short-lived and its sole purpose would be to get created, do the job (user picks photo from gallery e.g.), deliver result (picked image) into onActivityResult and terminate itself. Please refer this post for more details on this approach. I will update the plugin once I have more free time.

• On experiecing a problem, feel free to create an issue.