Abstract:
Although the telephone band (0.3-3 kHz) provides sufficient information for speech recognition, the contribution of the non-telephone band (<0.3 and >3 kHz) is unclear. To investigate its contribution, speech intelligibility and talker identification were evaluated using consonants, vowels, and sentences. The non-telephone band produced relatively good intelligibility for consonants (76.0%) and sentences (77.4%), but not vowels (11.5%). The non-telephone band supported good talker identification only with sentences (74.5%), but not vowels (45.8%) or consonants (10.8%). Furthermore, the non-telephone band cannot produce satisfactory speech intelligibility in noise at the sentence level, suggesting the importance of full-band access in realistic listening.
摘要:
尽管电话频段(0.3-3kHz)为语音识别提供了足够的信息,非电话频段(<0.3和>3kHz)的贡献尚不清楚。为了调查它的贡献,使用辅音评估语音清晰度和说话者识别,元音,和句子。非电话频段对辅音(76.0%)和句子(77.4%)产生了相对较好的清晰度,但不是元音(11.5%)。非电话频段仅支持句子的良好说话者识别(74.5%),但不是元音(45.8%)或辅音(10.8%)。此外,非电话频段在句子级别的噪声中不能产生令人满意的语音清晰度,暗示了全波段接入在现实听力中的重要性。