Is autoplay and comments=false not possible in html5?

I use the following shortcode.
[soundcloud id=’70679572′ comments=’false’ autoplay=’true’ playertype=’html5′ width=’100%’ color=’#cbcbcb’]
But it is not starting on loading and it is open for comments!
Any help would be appreciated.

http://wordpress.org/extend/plugins/soundcloud-is-gold/