Change Meta Title seperator and remove on homepage

Question

I'm trying to change the character which is used as a seperator in my page title. At present it is in the format

Site Name - Page Title

However I would like to change this hyphen to a pipe character

Site Name | Page Title

I can't an option to do this in the back end.
How can I achieve this effect?
My site is using woocommerce, so in the header.php file in the title meta tags it is <?php woo_title(''); ?>

Answer 1

Replace

<?php woo_title(''); ?>

with

<?php woo_title( '|', true, 'right' ); ?>