About the mix bus types (vari / fixed), About word clock, Conventions in this manual – Yamaha LS9 User Manual
Page 14: About the firmware version
14
LS9-16/32 Owner’s Manual
The sixteen MIX buses provided on the LS9 can be assigned either as VARI or FIXED types in
pairs of adjacent odd-numbered/even-numbered buses (
→ p. 213). They can also be switched
between monaural/stereo for the same pairs of buses. VARI type and FIXED type buses differ as
follows.
● VARI
This type allows the send level of the signal sent from the
input channels to the MIX bus to be varied. The point at
which the signal is sent from the input channel to a VARI
type MIX bus can be chosen from before the EQ
(attenuator), before the fader, or after the [ON] key.
This type is used mainly for sending the signal to a moni-
tor system or external effect.
● FIXED
With this type, the send level of the signal sent from the
input channels to the MIX bus is fixed. The signal from an
input channel is sent to a FIXED type MIX bus from
before Pan (if the MIX bus is monaural) or after Pan (if
the MIX bus is stereo). This type is used mainly when you
want to distribute signals to an external device with the
same mix as the STEREO/MONO buses.
“Word clock” refers to the clock that provides the basis of timing for digital audio signal process-
ing.
Normally, one device transmits a reference word clock signal, and the other devices receive this
word clock signal and synchronize to it.
In order to transmit or receive digital audio signals to or from an external device via the LS9’s
2TR IN DIGITAL/2TR OUT DIGITAL jacks or via a digital I/O card installed in a slot, the word
clock must be synchronized between the devices. Be aware that if the word clock is not synchro-
nized, the signal will not be sent correctly, or there may be unpleasant noise. (For details on syn-
chronizing the LS9’s word clock with an external device
In this manual, switch-type controllers on the panel are called “keys.” Of the control knobs on the
panel, those that turn from a minimum value to a maximum value are called “controls,” while
those that turn endlessly are called “encoders.”
Controllers located on the panel are enclosed in square
brackets [ ] (e.g., [CUE] key) in order to distinguish them
from the virtual buttons and knobs displayed in the screen.
For some controllers, the name of the section is given
before the [ ] (e.g., LAYER [MASTER] key).
Whenever there is a difference between the LS9-16 model
and the LS9-32 model, specifications that apply only to
the LS9-32 model are enclosed in curly brackets { } (e.g.,
INPUT jacks 1–16 {1–32}).
You can view the firmware version number in the MISC SETUP screen (
You can also download the most recent firmware version from the website.
http://www.yamahaproaudio.com/
About the MIX bus types (VARI / FIXED)
About word clock
Conventions in this manual
About the firmware version