# LiveData Conversation Intelligence (/en/realtime-media/marketplace/build/add-moderation-and-intelligence/livedata-conversation-intelligence/android)

> For AI agents: see the complete documentation index at [llms.txt](/llms.txt).

The LiveData Conversation Intelligence extension enables you to quickly add real-time speech transcription and translation features to your app.

      
    This page shows you how to integrate and use the extension in your app.

    ## Understand the tech [#understand-the-tech]

    The extension is an encapsulation of a cloud real-time speech recognition and translation API. You can integrate its capabilities by passing the specified `key` and `value` parameters to the `setExtensionProperty` method provided by the Video SDK.

    ## Prerequisites [#prerequisites]

    * Android Studio 4.1 or later.
    * A physical device (not an emulator) running Android 5.0 or later.
    * Integrated the Video SDK and implemented basic video calling, see [SDK quickstart](../../../video/quickstart.mdx).

    ## Project setup [#project-setup]

    The extension provides a sample project on GitHub:

    1. Clone the repository:

       ```bash
       git clone https://github.com/highras/rtvt-agora-marketplace.git
       ```

    2. Open the sample project in Android Studio.

    3. Sync the project with Gradle files.

    4. Connect a real Android device and run the project.

    ## Integrate the extension [#integrate-the-extension]

    ### Purchase and activate the extension [#purchase-and-activate-the-extension]

    Visit Extensions Marketplace and purchase the extension. Save the `appKey` and `appSecret` used to initialize it.

    ### Add the extension package [#add-the-extension-package]

    1. Download the extension package from Extensions Marketplace.
    2. Save all `.aar` files to `/app/libs`.
    3. Add the Gradle dependency:

       ```text
       implementation fileTree(dir: "libs", include: ["*.jar", "*.aar"])
       ```

    ### Enable the extension [#enable-the-extension]

    ```java
    RtcEngineConfig config = new RtcEngineConfig();
    config.addExtension("agora-iLiveData-filter");
    engine = RtcEngine.create(config);
    engine.enableExtension("iLiveData", "RTVT", true);
    ```

    ### Start transcription and translation [#start-transcription-and-translation]

    ```java
    JSONObject jsonObject = new JSONObject();
    jsonObject.put("appKey", "80001000");
    jsonObject.put("appSecret", "qwerty");
    jsonObject.put("srclang", "zh");
    jsonObject.put("dstLang", "en");

    engine.setExtensionProperty(
      EXTENSION_VENDOR_NAME,
      EXTENSION_AUDIO_FILTER_VOLUME,
      "startAudioTranslation",
      jsonObject.toString()
    );
    ```

    ### Get transcription and translation results [#get-transcription-and-translation-results]

    After successful initialization, the extension returns transcription and translation results through the `onEvent` callback.

    ### Stop using the extension [#stop-using-the-extension]

    ```java
    engine.setExtensionProperty(
      EXTENSION_VENDOR_NAME,
      EXTENSION_AUDIO_FILTER_VOLUME,
      "closeAudioTranslation",
      "end"
    );
    ```

    ## Reference [#reference]

    * [RtcEngineConfig.addExtension](/en/api-reference/rtc/android/class-and-enum/classes/class-rtcengineconfig)
    * [enableExtension](https://api-ref.agora.io/en/video-sdk/android/4.x/API/class_irtcengine.html#api_irtcengine_enableextension)
    * [setExtensionProperty](https://api-ref.agora.io/en/video-sdk/android/4.x/API/class_irtcengine.html#api_irtcengine_setextensionproperty)