原始带 meaning in English

original tape

Hey , how can i get you to iisten to one of my demos
你可以听一下我的原始带吗
4 . speech enhancement techniques are applied to the speech recognition system in this thesis . the experiment results show that after the combination of the two systems , the output snr of the noise speech is improved and the recognition rate is enhanced
4 .将语音增强技术与语音识别系统结合起来,即通过对原始带噪语音进行语音增强处理,提高信号的信噪比和可懂度,从而提高语音识别系统的识别率。