A new type band-limited ELF emission burst which is closely associated with impulsive auroral hiss and auroral breakup is identified on the ground at Syowa Station (L=6.1) in Antarctica. The ELF emissions have a center frequency of 100--350 Hz and a duration of 10--150 s, in which band-limited structures are found in frequency-time displays. In many cases the band-limited structures show falling tone with time. Most of the emissions are observed at the onset of the substorm expansion phase for the limited magnetic local time of 1700--2400 MLT and in the austral winter season of June--August. The new band-limited ELF emission burst is termed ''ELF auroral roar'' because it is observed with a roaring sound through an audio speaker.