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双麦克风降噪技术是大规模应用的最普遍的降噪技术，一个麦克风为普通的用户通话时使用的麦克风，用于收集人声，而另一个配置在机身顶端的麦克风， 具备背景噪声采集功能，方便采集周围环境噪音。
CM6637 QFN-100 USB2.0 High-Speed 8+2+2 Output and 8+2+2 Input
CM8888 LQFP-128 PCIe 8CH HDA audio controller + I2S I/F
CMI8787 LQFP-128 PCI 8-channel HD audio controller
CM6631A LQFP-100 USB2.0 High-Speed 2-Out / 2-In I2S audio controller (32bit/384KHz)
CM6635 QFN-64 USB2.0 High-Speed 2-Out / 2-In I2S audio controller + embedded Flash (32bit/768KHz+DSD)
CM6620A LQFP-64 USB2.0 High-Speed 7.1CH HD Audio controller (24bit/192KHz)
CM8828 LQFP-80 PCIe 8CH HDA audio controller (codec companion is CM9882A)
CM6206 LQFP-48 USB 7.1CH audio codec with Vista/W7 logo driver
CM7106 LQFP-80 CM7100 + DTS Headphone X
CM8826 LQFP-80 PCIe 6CH HDA audio controller (codec companion is CM9862A)
CM7120N QFN-88 Ultra-low-power dual core DSP with 5-channel audio codec (up-to-120dB HP Amp) and 6 channel I2S in/out, 8ch TDM, bundled with Xear Audio/Voice Processing Effects
CM7120 WLCSP-113 Ultra-low-power dual core DSP with 5-channel audio codec (up-to-120dB HP Amp) and 10 channel I2S in/out, 8ch TDM, bundled with Xear Audio/Voice Processing Effects
CM7100 LQFP-80 Ultra-low-power DSP (310MHz) with 2 channel codec and 8 channel I2S in/out, bundled with Xear Audio/Voice Processing Effects
CM6206-LX LQFP-48 USB 5.1CH audio codec with Vista/W7 logo driver
CM6212 QFN-64 USB 2.0 high speed audio controller with 7.1 I2S out / 2 I2S in / HDA controller+ embedded
