Realtek High Definition Audio Codecs 為瑞昱高傳真音效晶片的驅動程式。絕大多數的桌上型和筆記型電腦都採用瑞昱的高傳真音效卡晶片，這是公版驅動程式，內建管理程式、UAA 程式。
據官網表示，瑞昱半導體僅在網站上提供通用性的音效驅動程式供使用者下載。由於大部分系統廠商或主機板廠商可能會針對音效部分做一些客製化處理，所以瑞昱在網站上提供的驅動程式並無法保證與您的系統或主機板百分之百相容。為了確定您所使用的驅動程式完全支援您的系統,，該公司建議您從系統廠商或主機板廠商處下載他們建議以及測試過的驅動程式。
§ 作業系統：Windows 2000/XP/2003/Vista/7/8/8.1/10
§ 官方網站下載頁面
§ 檔案下載
Realtek High Definition Audio Codecs 原文簡介：
Realtek High Definition Audio codecs are compliant with Microsoft’s UAA (Universal Audio Architecture). The top series provide 10 DAC channels that simultaneously support 7.1 sound playback, plus 2 channels of independent stereo sound output (multiple streaming) through the front panel stereo output. Flexible mixing, mute, and fine gain control functions provide a complete integrated audio solution for home entertainment PCs.
Meets Microsoft WLP 3.10 and future WLP audio requirements
WaveRT based audio function driver for Windows Vista
Direct Sound 3D compatible
Multi bands of software equalizer and tool are provided
Microphone Acoustic Echo Cancellation (AEC), Noise Suppression (NS), and Beam Forming (BF) technology for voice application