Adhan أَذَان 101

5 times a day from the minaret of the Mosque, all Muslim’s are called to prayer. This call is the "adhan." This adhan itself is recited by the Muezzin. It is as much a proclamation as it is a warning that prayers are about to begin.

The Muezzin is someone specifically tasked to give the adhan five times a day for Fardh (mandatory) prayers. Then, Muslim’s hearing the adhan respond by coming to the Mosque for prayer or beginning their ablutions from wherever they might be to begin their prayers.

Throughout the Muslim world, from Africa, Arabia, Central Asia, the Indian Sub-Continent and down through South Asia the adhan is given in Arabic. Even in Western nations this call is given daily in the Arabic language. During the course of the adhan, this is a translation of what is recited;

God is Great, God is Great!
I bear witness that there is no god but God x2
I bear witness that Muhammad is the Messenger of God x2
Come to prayer x2
Come to your good x2
God is Great, God is Great!
There is no god but God!

Once everyone has arrived to the Mosque this call is given a second time within the Mosque. This second call is the Iqama. The iqama is recited in a lower monotone voice at a faster pace than the adhan. At this, the prayers begin.

Here is a short clip I saw on youtube that can give you a birds eye view of its sound…