摘要
以单片机为核心的语音存储与回放系统,结构紧凑,具有灵活的录音和回放功能、语音音量自动控制功能。采用RAM方式,扩大了存储空间,语音存储时间可以达十余秒。结果表明,在音频信号频率为300Hz～3.4KHz范围内,系统噪声小,语音回放效果良好。
The voice saving and resuming system which takes the single - chip computer as the core has a reasonable structure, flexible function of recording and resuming and the function of automatic volume control. The system uses the method of chip - chosen RAM, which extends the saving space, and the voice can be saved for more than ten seconds. The result shows that the system has a good effect of voice resuming and the noise is low when the audio frequency is from 300Hz to 3.4KHz.
出处
《济源职业技术学院学报》
2009年第2期16-19,共4页
Journal of Jiyuan Vocational and Technical College
关键词
单片机
语音处理
存储
回放
single-chip computer
speech processing
saving
resuming
