addresses #340 and #331 (#341)

lib/utils/db-utils.js

@@ -78,6 +78,10 @@ const speechMapper = (cred) => {
       const o = JSON.parse(decrypt(credential));
       obj.api_key = o.api_key;
     }
+    else if ('nvidia' === obj.vendor) {
+      const o = JSON.parse(decrypt(credential));
+      obj.riva_server_uri = o.riva_server_uri;
+    }
     else if (obj.vendor.startsWith('custom:')) {
       const o = JSON.parse(decrypt(credential));
       obj.auth_token = o.auth_token;