HP 733/800/866MHz 1GHz Online-Handbuch - Seite 24

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Glossary

ADPCM Adaptive Differential Pulse

Code Modulation, a data compression

technique. Refer to

PCM, on page 25

for more details.

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

-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.

English

DVD player Digital Versatile Disk

player. A standardized device to play

digital audio and video sequences.

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 that is used 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.