I'm not sure if I could understand your question. But if you want to know how to say 'it sounds' in 'it sounds like human voice', you can say 'kikoeru'. 'it sounds like human voice' is 'ningen(human) no koe(voice) no youni(like) kikoeru(sounds). And in case of 'it sounds good', we don't use the verb 'kiku'. you may say 'Yosasoudane' or 'Yoi hanashi mitaidane'.