jjwxc announced this morning that baidu is no longer providing free service for the text-to-audio function. the free service will be removed from the app starting from iOS4.6.9 (to be released this month) and Android5.5.6 (to be released in July). they will replace it with the paid version which you are required to buy if you want to use the function (will coexist with the paid 讯飞 version too).
consider switching to desktop for text-to-audio function (microsoft edge, for example, has a read aloud function).
will update on this in the next guide update too!
書庫 