Yamaha 02R, Руководство пользователя

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230 Glossary
Digital Recording Console 02R User’s Guide
Routing – The process of assigning input or tape and effect returns to the
output buses or the stereo bus.
Sampling frequency – The rate at which measurements of an audio signal
are taken during A/D and D/A conversion. Once in the digital domain, the
data usually remains at the same sampling frequency. The measure is
samples per second.
Scene Memory – The 02R scene memories are a memory location used to
store a snapshot of virtually all the digital parameters of the mixer. Settings
that are not stored consist mainly of monitor controls, analog controls, and
switches. The 02R has 64 mix scene memory locations. Each can be named
for easy identification.
Shelving – An equalizer circuit that is used to cut and boost a signal above
or below a specified frequency. High and low band equalizers are usually
shelving type. The 02R equalizer can be configured as shelving or peaking.
Signal to Noise ratio (S/N) – The difference between the nominal signal
level and the residual noise floor, usually expressed in decibels.
System Exclusive – A MIDI message that is used to transmit data between
MIDI devices that is exclusive to those devices. Bulk dump data can be sent
from any device to a MIDI data filer. Controller events are transmitted
between 02Rs using System Exclusive messages. See also
Bulk Dump .
Talkback System – A system that allows the engineer in the control room
to talk to the musicians in the studio.
Timecode –Timecode is a signal that contains a chronological record of the
absolute time in a recording. It is used for synchronizing different
recorders. It can be used for electronic editing. Timecode was initially
invented for the motion picture business, as a method of synchronizing the
pictures recorded in the frames of a camera to the sound recorded on tape
recorder.
The 02R supports three types of timecode, SMPTE timecode, MTC (MIDI
timecode), and Internal timecode
White noise – A random noise that contains an equal amount of energy per
frequency band. That is, 100–200, 800–900, and 3000–3100. Pink noise has
an equal amount of energy per octave. The bands 100–200, 800–1600, and
3000–6000 all contain the same amount of energy.
Word – One sample of audio data. In the 02R, a word is 20-bits.
Wordclock – Wordclock is a sync pulse which allows devices to determine
where the start of each digital word is. When multiple digital devices are
connected together, it is vital that each device knows where a digital word
starts and stops. Otherwise dropout or distortion may result. Although
most digital interconnect protocols are self-clocking, it is more reliable to
use a dedicated line for your wordclock signal. This is especially important
in a multitrack environment where up to eight channels of digital data may
be multiplexed on one cable.