Secret World of Sound with David Attenborough Season 1 - Promo Trailer HD - Documentary - Advanced audio technology captures the sound of nature like you've never heard it before, in this riveting docuseries narrated by Sir David Attenborough.<br />Starring:David Attenborough<br /><br />Coming Wednesday<br />Renowned broadcaster and biologist David Attenborough ("A Life on Our Planet," "Planet Earth") narrates this docuseries.
