Part 22 General Audio Settings - Tieline ViA User Manual

22 General Audio Settings
General audio settings include the following options:
·
Audio reference levels.
·
Phantom power voltage settings for inputs 1-3.
·
Disabling +48V Phantom Power on boot.
·
Show/hide +48V High Voltage warning dialog.
·
Analog Input Level Scale adjustment.
·
Disable AES42 Mic Input on boot.
·
Show AES42 Mic Input warning dialog.
·
Output AGC enable/disable.
·
Loopback audio test.
To adjust these settings:
1. Press the HOME
2. Tap General
Audio Reference Levels
By default, codec the PPM METERS on the front of the codec, on the TOUCH SCREEN, or the
HTML5 Toolbox Web-GUI, use dBFS to express nominal operating, headroom and noise floor levels.
The codec can also automatically adapt to different Tieline reference scales. A Tieline codec with
proprietary Tieline session data enabled will automatically adjust the reference level to suit G5 and
G3 codecs, or Report-IT. When connecting to a non-Tieline codec, or a Tieline codec without
session data enabled, the codec will use the Tieline G5 reference scale setting.
The default Tieline G5 audio reference scale displayed on the PPMs when you connect to a Tieline
G5 codec is -38dBFS to 0dBFS (e.g. Merlin, Genie, Bridge-IT and ViA codec families). Using this
reference scale audio peaks can safely reach 0dBFS without clipping, providing 18dB of headroom
from the nominal 0vu point. The comparison table below outlines the reference scales for G5 and G3
codecs and Report-IT in dBFS, as well as the equivalent dBU scale.
Reference
Setting
1 Tieline G5
2 Tieline G3
3 Report-IT
© Tieline Pty. Ltd. 2017
button to return to the Home screen, then tap Audio
.
Description
PPM meter low point
Nominal 0vu reference level
Level at which audio will clip/distort
PPM meter low point
Nominal 0vu reference level
Level at which audio will clip/distort
PPM meter low point
Nominal 0vu reference level
Level at which audio will clip/distort
ViA User Manual v2.0
.
dBu dBFS
-16dBu -38dBFS
+4dBu -18dBFS
+22dBu
-11dBu -29dBFS
+4dBu -14dBFS
+18dBu
-9dBu -23dBFS
+4dBu -10dBFS
+14dBu
93
0dBFS
0dBFS
0dBFS