HP Kayak XU 03xx hp kayak pc workstations, using sound - Page 33

Glossary MS-ADPCM Adaptive Differential Pulse Code Modulation, a data compression technique from Microsoft. A-law A method of data compression that enables the sampling of sound at a resolution of 16 bits, but that generates the same quantity of data as an 8-bit sampling rate. AVI files Audio-Video Interleaved file format used with Microsoft's Video for Windows. Basic MIDI format Allows MIDI channels 13 to 16 of the General MIDI operation mode to be used when notes are played through MIDI. Compression A technique for compacting data for more efficient storage or transmission. The sound quality of compressed audio data is greatly reduced. See the A-law and µ-law entries. DAT Digital Audio Tape. Digital audio Digitally recorded sound such as speech and sound effects. DMA channel Direct Memory Access channel. Speeds up I/O to and from the system's memory by avoiding CPU processing. However, the system limits the number of boards that can use DMA. Extended MIDI format Allows MIDI channels 1 to 10 of the General MIDI operation mode to be used when notes are played through MIDI. FM synthesis A technique for synthesizing sound that uses a combination of modulated sine waves to produce different wave forms. General MIDI format A standard set of 128 sounds. Allows 16 channels to be used when notes are played through MIDI. IRQ line The Interrupt Request line is the signal line your board uses to notify your computer's central processor that it wants to send or receive data for processing. MID files Standard file format used to store MIDI sequence information. MIDI Musical Instrument Digital Interface. An international hardware/software standard that specifies the cable and hardware interface that allows several devices, instruments, and computers to interchange music codes and events. MIDI mapper A Windows utility that lets you edit MIDI key maps, patch maps, and channel mappings. Mixing Combining sounds from several sources. MPU-401 MIDI interface hardware standard developed by the Roland Co. English 33