Nitrogen D2 is the world first USB audio chip that with Dolby Digital Live and dts Interactive sounds technology supporting. This special feature is Dolby Digital Live and dts interactive function modules. As we know, Dolby Digital and dts (Digital Theater System) are the world well-known sound technology brands and generality using on consumer electronics. Therefore, if PC products need to be home theater equipment or media center this would be key feature and selling point for product development. These functions not only provide easy bridge to connect PCs and consumer electronics but also adding value and upgrade sound quality to PC products. In the future, PCs can put on Dolby Digital and dts logo on it and provide advanced sound quality to end-user. All of modules were implemented by C-Media in software technology and anyone can request these features by license from Dolby Lab. and DTS Corporate. through C-Media.For vender specific requests, customers can use an EEPROM tocreate vender specific VID / PID / Product String, and even special hardware configuration. More flexible and customized design is possible with GPIO pin, which is accessible by USB vender specific request. Volume control VR input pin; a traditional speaker front panel design can be built. Nitrogen D2 support USB standard HID Interface which provide Volume _up / Volume _down / Playback mute Buttons and Rotary Encoder for pure digital volume control.
The innovation technology DRC feature was integrated on Nitrogen D2. This Dynamic Range Control function can support high efficiency volume output to get loudness sound effect similar D class amplifier capability. Vender can just using single chip to saving external amplifier component and getting a better listen experience when listen to a music source with wide dynamic range.