Watson Analytics : https://watson.analytics.ibmcloud.com/
Speech to text demo : https://speech-to-text-demo.ng.bluemix.net/?cm_mc_uid=45779248475715130553787&cm_mc_sid_50200000=&cm_mc_sid_52640000=
Text to speech demo : https://text-to-speech-demo.ng.bluemix.net/
Watson data studio: https://www.ibm.com/cloud/watson-studio