声学滤波 基于octave filter bank的语音特征提取及滤波，用于辅助听力器材设计 -Acoustic filter characteristics octave filter bank based speech extraction and filtering design for assistive listening devices

我整理的英语考级资料，听力、笔试考试技巧及注意事项-I sort of English Grading information, listening, written examination techniques and precautions