Hi, you cannot just pronounce the "ã", it is always in combination with the "o", so "ão" is 1 sound. It sounds like "aoow". Does this help you? Olivier

Here's an easy song to listen to the sound "ã" in words like "não", "coração", "proteção", "vilão". The singer sings slowly and you will notice this sound. http://letras.mus.br/maria-rita/73640/ Hope this helps. :)