- backing object
- In multimedia streaming, either the Microsoft® DirectDraw® surface for video or the IAudioData object for audio.
- bi-phase mark
- A method of encoding digital data such that clock timing and bit stream data are encoded into a square wave. Because it can be read over a wide range of play speeds, it is used for LTC signals (originally known as Manchester-1 code).
- blackburst
- A video signal that can be used to synchronize multiple video sources. Blackburst contains the vertical sync, horizontal sync, and the chroma burst information, but no active picture information.
- blit
- Bit block transfer. Used to transfer all or part of a bitmap from a source such as memory or the screen, to a destination such as another memory or display surface.
- bob
- A method of displaying interlaced video fields on a progressive monitor. In bob mode, one field is displayed at a time, the even lines alternating with the odd lines. The lines are stretched by a factor of two, to fit the entire display area.