in order to use Minio with phpSound you will have to edit the following file :
add this :
'endpoint' => 'https://your.endpoint.com', 'bucket_endpoint' => false, 'use_path_style_endpoint' => true,
'region' => $settings['as3_region'],
then go to your admin panel -> Site Settings -> Storage
add your details and make sure to pick
Region : us-east-1
if you need more help feel free to contact me.