Could you tell me how to use the recording function of italki? :) I’d like to send my voice,but I can‘t use it.... After I clicked the record button and a dialog box appeared， I didn’t know what to do next. I clicked the first button on the left and speaked, but it didn‘t record my voice. And then I clicked the next one,but it didn't work as same as the first time I tried. I'm afraid to use the button called send, I think it means send my voice at once but I didn’t record my voice any longer. Or I can‘t use the recording function until I have some support softwares？ Could you help me? I’m looking forward to your answers. :)