The Oxygen Express™-series HD CM8888 is a high- quality PCI Express multi-channel audio processor with an Intel HD Audio specification-compatible audio chip. It is also a controller that can link HDA codecs or bridge high-quality I2S codecs. The CM8888 can be built into home audio electronics or personal computers to provide high-fidelity sound, providing a professional audio processing center.
It supports up to 14 outgoing channels and 12 ingoing channels. The 14 outgoing channels are composed of 4 playback DMA’s, including a multi-channel DMA (32 bits, 8 channels, 192k), a S/PDIF & HDMI DMA (each 32 bits, 2 channels, 192k), and a RTC (real-time communication) DMA (32 bits, 2 channels, 192k) channels. The 12 ingoing channels are spread out in 3 recording DMAs (up to 32 bits, 192k).