We investigated the speech intelligibility differences of normal and bone-conduction stereo headphones of target speech localized at 45 degrees on the horizontal plane when competing noise is present. This was our effort to study the possible effect of crosstalk found in bone-conduction headphones on speech intelligibility. All sound sources were localized on the horizontal plane. Target speech was localized at 45 degrees diagonal relative to the listener, while the noise was localized at various azimuths and distances from the listener. The SNR was set to 0, -6, -12 [dB]. We found little difference in intelligibility by headphone types, suggesting that cross-talk in bone-conduction headphones have negligible effect on intelligibility.
Bibliographic reference. Kondo, Kazuhiro / Kanda, Takayuki / Kobayashi, Yosuke / Yagyu, Hiroyuki (2010): "Speech intelligibility of diagonally localized speech with competing noise using bone-conduction headphones", In INTERSPEECH-2010, 1213-1216.