Muslims use the human voice to announce the times of prayer to the community. The adhan is the call to prayer itself, and the person who calls it is called the muadhan.
The following is the Arabic transliteration and the English translation of what you hear:
Allahu Akbar
God is Great
(said four times)
God is Great
(said four times)
Ashhadu an la ilaha illa Allah
I bear witness that there is no god except the One God.(said two times)
I bear witness that there is no god except the One God.(said two times)
Ashadu anna Muhammadan Rasool Allah
I bear witness that Muhammad is the messenger of God.
(said two times)
I bear witness that Muhammad is the messenger of God.
(said two times)
Hayya 'ala-s-Salah
Hurry to the prayer (Rise up for prayer)
(said two times)
Hurry to the prayer (Rise up for prayer)
(said two times)
Hayya 'ala-l-Falah
Hurry to success (Rise up for Salvation)
(said two times)
Hurry to success (Rise up for Salvation)
(said two times)
Allahu Akbar
God is Great
[said two times]
God is Great
[said two times]
La ilaha illa Allah
There is no god except the One God
There is no god except the One God
For the pre-dawn (fajr) prayer, the following phrase is inserted after the fifth part above, towards the end:
As-salatu Khayrun Minan-nawm
Prayer is better than sleep
(said two times)
Prayer is better than sleep
(said two times)