Part 18 Ppm Meters And Analog Audio Outputs - Tieline ViA User Manual

78 ViA User Manual v2.0
18 PPM Meters and Analog Audio Outputs
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. For
more information on reference scales see
Important Note: The PPM examples which follow are based on default program routing of
inputs to encoders and return audio to decoders. To learn more about adjusting encoder
and decoder routing see
Setting Levels with PPM Meters
The INPUT PPM METERS surrounding the INPUT GAIN rotary encoders, and the PPM meters on
the TOUCH SCREEN, use the dBFS audio scale. Set levels so that audio peaks average around the
first ORANGE LED.
When adjusting input levels, a GREEN or ORANGE LED surrounding each INPUT GAIN rotary
encoder displays the amount of gain wound into the input. This disappears after a few seconds if
audio is present and normal PPM metering resumes.
Set mixed audio levels so that audio peaks average around the first ORANGE LED on the LEFT,
RIGHT and RETURN PPMs on the front of the codec, or the PPM meters on the Connections
screen. This represents nominal 0 VU at -18dBFS (+4dBU). Audio peaks can safely reach 0dBFS
(+22 dBu) without clipping, providing 18dB of headroom.
General Audio
Using the Matrix Editor.
Settings.
© Tieline Pty. Ltd. 2017