A B C D E F G H I J K L M N O P Q R S T U V W X Y Z _
| Deinterlacing | Deinterlacing is the process of converting interlaced video, such as common analog television signals or 1080i format HDTV signals, into a non-interlaced form (progressive). With interlaced video, since each field is only half the scanlines of a full frame, interpolation must be used to form the missing scanlines. There are various methods of doing the interpolation, ranging from simply doubling scanlines to motion-adaptive methods. Ideally, each field becomes its own frame of video, so an interlaced NTSC clip at 29.97 frames per second stream becomes a 59.94 frame per second progressive. |
| Data | In computer science, data is anything in a form suitable for use with a computer. Data is often distinguished from programs. A program is a set of instructions that detail a task for the computer to perform. In this sense, data is thus everything that is not program code. |
| DDI | A Device Driver Interface or software driver is a computer program allowing higher-level computer programs to interact with a hardware device. A driver typically communicates with the device through the computer bus or communications subsystem to which the hardware connects. When a calling program invokes a routine in the driver, the driver issues commands to the device. Once the device sends data back to the driver, the driver may invoke routines in the original calling program. Drivers are hardware-dependent and operating-system-specific. They usually provide the interrupt handling required for any necessary asynchronous time-dependent hardware interface. |
| Dolby TrueHD | Dolby TrueHD is an advanced lossless multi-channel audio codec developed by Dolby Laboratories which is intended primarily for high-definition home-entertainment equipment such as Blu-ray Disc and HD DVD. Dolby TrueHD is the successor to the AC-3 Dolby Digital surround sound codec which was used as the audio standard for DVD discs. In this application, Dolby TrueHD competes with DTS-HD Master Audio, another lossless codec from Digital Theater System. |
| DoP | Direct Stream Digital (DSD) DSD over PCM A system of digitally recreating audible signals for the Super Audio CD (SACD). It uses pulse-density modulation encoding to store audio signals on digital storage media used for SACD's. An alternative to burning DSD files onto disks for eventual playback is to transfer the (non-encrypted) files from a computer to audio hardware over a digital link such as USB. "DSD over PCM", or "DoP", is suitable for other digital links that use PCM. |