识别试验利用模拟电话语音评估了HMM识别器做MLLR自适应前后的性能。
MLLR adaptations are conducted to evaluate the performances of the HMM recognizers, which are trained from the clean speech and generated data respectively.
针对电话语料比较缺乏的问题,提出了一种完全由软件模拟实现由纯净语音向电话质量语音转换的算法。
Owing to the lack of telephone speech data, this paper proposes a software simulation implementation of converting clean speech sounds into telephone-quality ones.
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