Effects on computer recognition of speech when speaking through protective masks
The purpose of this experiment was to investigate the effects on computer recognition of speech when speaking through aviator protective masks as compared to the standard boom-mounted microphone. Twelve Army aviators were tested with a 50-word vocabulary under three conditions: no mask (boom-mounted microphone), M24 aviator protective mask which has an internally mounted microphone, and the XM33 developmental aviator protective mask which has an externally mounted microphone. The conclusions were (1) of the two masks designs, the M24 mask with the internally mounted microphone provided better results with the speech recognition system and (2) although there was no significant difference in performance between the boom-mounted microphone and the protective masks, there was an indication of inconsistent performance obtained with the boom-mounted microphone which was not clearly understood and warrants further investigation.
- Research Organization:
- Army Human Engineering Labs., Aberdeen Proving Ground, MD (USA)
- OSTI ID:
- 6755247
- Report Number(s):
- AD-A-129371/1
- Country of Publication:
- United States
- Language:
- English
Similar Records
Speech recognition and understanding
Speech recognition system for an automotive vehicle