Yamaha 02R User Manual

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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.