VOICES.WAD

From DoomWiki.org

In addition to the main game IWAD, Strife also comes with a seperate IWAD, called VOICES.WAD, that is automatically loaded by the game for voices during conversations and cutscenes. It remains unchanged regardless of the game version. It is 27319149 bytes in size and contains 373 entries. It has the following hashes:

MD5082234d6a3f7086424856478b5aa9e95
SHA-1ec6883100d807b894a98f426d024d22c77b63e7f
CRC32cd12ebcf