http://158.51.99.164:8001/demo/aisinger/aisinger.zip
http://158.51.99.164:8001/demo/demix/demix.zip
http://158.51.99.164:8001/demo/ns_16k/ns_16k.zip
http://158.51.99.164:8001/demo/ns_48k/ns_48k.zip