Dictio

Pronunciation practice for language learners

This app aims to help language learners improve their pronunciation for wide variety of languages.

DISCLAIMER: This is a proof-of-concept app and may be pulled from Play Store without advance notice.

Screenshots

Installation

The source code of this app is made up of several modules:

• app is the android application, main techonologies used: Architecture Components, RxJava, EasyFlow, Android Text-To-Speech.

• backend built with Google Endpoints Framwork is responsible for serving prompts as a single JSON collection and generating temporary access tokens for Google Cloud Speech service.

• speech module provides voice recorder and a client for Google Cloud Speech service.

Follow the steps to deploy your own backend and build the app:

1. Sign up for Google Cloud and create a new project.
2. Install and configure Google Cloud SDK on your workstation
3. Enable Google Cloud Speech API for your project and save service credentials file service-credentials.json to backend/src/main/webapp/WEB-INF/
4. Replace projectId in backend/build.gradle with your project id
5. Run ./gradlew :backend:appengineDeploy to deploy the backend
6. Open the project in Android Studio and run the app

To generate signed APK set the following variables in ~/.gradle/gradle.properties:

DICTIO_RELEASE_STORE_FILE=<path to keystore>
DICTIO_RELEASE_KEY_ALIAS=<key alias>
DICTIO_RELEASE_STORE_PASSWORD=<store password>
DICTIO_RELEASE_KEY_PASSWORD=<key password>

License

GPL @ Mikhail Pontus