No, Armenians did die in large numbers, but unfortunately this does not prove genocide, there are many other reasons why these death tolls are high. But this does not excuse the terrible deeds committed by Ottoman citizens (Christian or Islamic) who attacked innocent civilians and/or massacred them for whatever purpose.
Large numbers of Armenians did die and suffer at the hands of locals. Sometimes they were provoked, and sometimes unprovoked. Sometimes they were justified somewhat, and other times they were unjustified. This is a complex history of isolated massacres due to increase tensions of nationalism in both Turks, Kurds, and Armenians, as well as the tensions created by Balkan massacres of Muslims and Armenian massacres by locals. It is important to note that such tensions in Eastern Anatolia increased the death tolls of many Turks, Kurds, Armenians, and other Ottoman citizens.
The key concept in proving genocide, is the definition of genocide being the proof of intent.
Armenian historians have provided only two examples of archives directly ordering the genocide. Unfortunately, these were later proven to be forgeries.
So Armenian historians such as Vahakn Dadrian, then decided to conclude that such documents exist and they are authenticated simply because many Armenians died, and so "there must have been genocidal intent."
This is dangerous speculation, because there is no authentic proof or evidence that shows that the Ottoman government was planning on exterminating Armenians in part or as a whole. There is substantial archival documents and telegrams showing that the Young Turk Ottoman government was trying to prevent the massacres and killings.