Codec Tieline Gateway User Manual page 109

Adjusting Audio Input Levels
To adjust input audio levels, click on the input slider and drag it to the desired input gain level.
Alternatively, type a value below a PPM meter to increase or decrease the input level value. Note:
0.5dB increments are accepted for increasing and decreasing audio levels. Input levels on the Input
panel should be set to ensure audio peaks average at the first yellow indications on the PPM
meters, which represents nominal 0 VU at -20dBFS. Audio levels should also be verified using the
meters in the PPMs panel.
Important Notes: There is a maximum of 6dB of additional gain available when adjusting a
digital input.
Changing the Input PPM Meter Units from dBFS to dBU
It is also possible to switch the analog input PPM meter unit of measurement from dBFS
(default) to dBU:
1. Open the HTML5 Toolbox Web-GUI and click Audio in the Menu Bar, then click
2. Click the Analog Inputs PPM Units drop-down menu and select dBU, then click
Configuring Input Settings
Selecting Analog and Digital Audio Sources
Codec inputs can be configured for AES3, AES67 or analog line level audio sources. Use the
Audio Options panel in the HTML5 Toolbox web-GUI to configure digital inputs globally for
© Tieline Research Pty. Ltd. 2021
Audio Options to display the Audio Options panel, next click Edit.
Save.
Gateway and Gateway 4 Manual v1.2
Gateway 4 inputs panel
109