Previous studies have suggested the use of speech recognition software may be related to the development of voice problems. The aim of this study is to investigate the effects of using such software on perceptual voice quality. In particular, the variables type of speech recognition (discrete and continuous) and vocal load of a speaker are considered. One of the most consistent results was a rise in pitch, a common finding in voice fatigue studies. It is interpreted as part of a hyperfunctional mechanism countering early signs of voice fatigue.
Bibliographic reference. Bruijn, Christel de / Whiteside, Sandra (2007): "Voice fatigue and use of speech recognition: a study of voice quality ratings", In INTERSPEECH-2007, 1190-1193.