Sounds like a soft "d" sound, like when you put your tongue up at the roof of your mouth but focusing more behind your teeth, for the beginning t sound. For the áo part, it kiiiind of sounds like a confused "ow??"
Remember that the accent mark above the a means that the intonation of that raises up higher, hence my description of sounding slightly confused.
Hopefully that helps! I tried to compare them to sounds you may already be familiar with. :)