$i18n{textToSpeechProperties}
$i18n{textToSpeechVolume}
$i18n{textToSpeechPreviewHeading}
$i18n{textToSpeechPreviewVoice}
$i18n{textToSpeechPreviewPlay}
$i18n{textToSpeechVoices}
$i18n{textToSpeechMoreLanguages}
$i18n{textToSpeechNoVoicesMessage}
$i18n{textToSpeechEngines}