Users Guide

Table Of Contents
Operating the monitor | 103
Echo Cancelling Speakerphone (C2422HE/C2722DE/C3422WE) audio path
is where audio streams through USB. This is either through USB-C to USB-C cable
or USB-A to USB-B cable. As the microphone path streams from monitor back to
PC through USB, this selection is required for VolP/UC conference applications.
Audio Recording and Playback will work under this selection.
DELL C2422HE/C2722DE/C3422WE audio path is where audio streams
through HDMI/ DP/ DP alternate mode. Under this selection, there will not be
microphone support. This selection is suitable for Audio Playback only.
Audio Playback performance would be the same for either audio path selection. Under
normal Playback with USB-C to USB-C/USB-A to USB-B and/or for UC conference
applications, default selecting the Echo Cancelling Speakerphone (C2422HE/
C2722DE/C3422WE) audio path is recommended.
NOTE: If you select DELL C2422HE/C2722DE/C3422WE audio path,
please ensure that the Echo Cancelling Speakerphone (C2422HE/C2722DE/
C3422WE) volume is set to medium or high. Else, the DELL C2422HE/C2722DE/
C3422WE maximum volume may sound soft because it is limited by the Echo
Cancelling Speakerphone (C2422HE/C2722DE/C3422WE) volume. For
example, when the Echo Cancelling Speakerphone (C2422HE/C2722DE/
C3422WE) volume is at 50%, and the DELL C2422HE/C2722DE/C3422WE
volume is set to 100% will have the same sound level as the former.