| EchoControl | 回声控制 |
| Dereverberation | 去混响 |
| Off | 关闭状态 |
| The video device has built-in signal processing to reduce the effect of room reverberation. Dereverberation requires that Audio Input Microphone [n] EchoControl Mode is enabled. | 本视频设备内置信号处理功能,可降低房间混响带来的影响。启用去混响功能的前提是,需先开启音频输入麦克风 [n] 的回声控制模式。 |
| Mode | 模式 |
| On | 开启状态 |
| The echo canceller continuously adjusts itself to the audio characteristics of the room, and compensates for any changes it detects in the audio environment. If the changes in the audio conditions are significant, the echo canceller may take a second or two to re-adjust. | 回声消除器会持续根据房间的音频特性自动调整参数,并对检测到的音频环境变化进行补偿。若音频环境发生显著变化,回声消除器可能需要 1-2 秒时间重新完成参数校准。 |
| NoiseReduction | 降噪 |
| On | 开启状态 |
| The video device has built-in noise reduction, which reduces stationary background noise, for example noise from air-conditioning systems, cooling fans etc. In addition, a high pass filter (Humfilter) reduces very low frequency noise. Noise reduction requires that Audio Input Microphone [n] EchoControl Mode is enabled. | 本视频设备内置降噪功能,可削减稳态背景噪音(例如空调系统、散热风扇等产生的噪音)。此外,设备配备的高通滤波器(低频噪声滤除器)可降低极低频率的噪声。启用降噪功能的前提是,需先开启音频输入麦克风 [n] 的回声控制模式。 |