Question about changing language on youtube videos?

How can i change the audio from a youtube video from englih to spanish. I have relatives who speak spanish and I have some videos that I want to show them but they are all in english.Question about changing language on youtube videos?unfortunately you cant, i think but some videos have subtitles and captionsQuestion about changing language on youtube videos?you cant changed the language directly from youtube......you need software named %26quot;video language converter%26quot;