语音检测器,舒适噪音生成器,电话技术

语音检测器(VAD),舒适噪音生成器(CNG)

GAO的语音检测器(VAD),舒适噪音生成(CNG)软件用来在通话空闲时刻降低传输率。允许间断传输的系统是基于语音检测(VAD)算法和舒适噪音生成(CNG)算法,它们允许在通话空闲时刻插入人工噪声.

当传输停止时为了避免噪声调制的引进,该功能是必要的。如果在激活期间出现的背景噪声突然消失,这种非常不合意的噪声调制甚至会降低通话的可理解性。VAD的目的是可靠地检测通话的存在和不存在,并把这些信息传递给CNG算法。CNG算法的目的是产生一个匹配实际背景噪声的声音,并有尽可能低的整体传送损失.

语音检测器(VAD),舒适噪音生成(CNG)的特征

要得到GAO电话软件产品的完整清单,请看 GAO's Telephony Software.

Voice Activity Detector (VAD), Comfort Noise Generator (CNG)Voice Activity Detector (VAD), Comfort Noise Generator (CNG) Product Sheet

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