Playing Audio Indications (RPC v5.0+)

You can pass an uploaded audio file's name to TTSChunk, allowing any API that takes a text-to-speech parameter to pass and play your audio file. A sports app, for example, could play a distinctive audio chime to notify the user of a score update alongside an Alert request.

Note

On Manticore, audio indications work best in Google Chrome, Mozilla Firefox, or Microsoft Edge. Audio indications do not work in Apple Safari at this time.

Uploading the Audio File

The first step is to make sure the audio file is available on the remote system. To upload the file use the FileManager.

SdlFile audioFile = new SdlFile("Audio file name", FileType.AUDIO_MP3, fileUri, true);
sdlManager.getFileManager().uploadFile(audioFile, new CompletionListener() {
    @Override
    public void onComplete(boolean success) {

    }
});

For more information about uploading files, see the Uploading Files guide.

Using the Audio File

Now that the file is uploaded to the remote system, it can be used in various RPCs, such as Speak, Alert, and AlertManeuver. To use the audio file in an alert, you simply need to construct a TTSChunk referring to the file's name.

Alert alert = new Alert()
    .setAlertText1("Alert Text 1")
    .setAlertText2("Alert Text 2")
    .setDuration(5000)
    .setTtsChunks(Arrays.asList(new TTSChunk("Audio file name", SpeechCapabilities.FILE)));
sdlManager.sendRPC(alert);