Yes, the player appears before the Add to Cart button by default. To change this:
// Remove default position
remove_action('woocommerce_before_add_to_cart_form', array($plugin_public, 'wcap_add_preview_field'), 0);
// Add to new position
add_action('woocommerce_after_single_product_summary', array($plugin_public, 'wcap_add_preview_field'), 15);