Audio Commands; Xcommand Audio Diagnostics Measuredelay; Xcommand Audio Microphones Mute; Xcommand Audio Microphones Togglemute - Cisco TelePresence SX20 Codec Reference Manual

Cisco TelePresence SX20 Codec

Introduction

Audio commands

xCommand Audio Diagnostics MeasureDelay

This command will measure the audio delay/latency in a device connected to the video system.
A typical use case it to measure the delay in a TV connected to the video system via the HDMI
connector. If the delay in a TV is too high, the real-time experience of a video call will be
substantially degraded. If the delay is more than 50 ms we recommend the user to find a TV
setting that has shorter delay. Typical TV settings that can reduce the delay are: Gaming Mode
and PC Mode.
This command will measure the delay between output and input (microphone). This means
that if you are using an external acoustic echo canceller or audio mixer, this command will also
measure the delay of these devices.
Requires user role: ADMIN, USER
USAGE:
xCommand Audio Diagnostics MeasureDelay [MeasurementLength: MeasurementLength]
[Output: Output] [Volume: Volume]
where
: Integer (1..100)
MeasurementLength
The length of the measurement in number of seconds. In a noisy environment a longer
measurement time will give a more reliable and robust result.
: HDMI/Line/Internal/All
Output
HDMI: Measure the delay of the device connected to the HDMI output.
Line: Measure the delay of the device connected to the Line output (only available on
video systems that have a Line output).
Internal: Measure the delay of the internal loudspeaker (only available on video systems
that have an internal loudspeaker).
All: Will measure the maximum delay of all outputs.
: Integer (1..50)
Volume
The volume for the test signal. In a noisy environment a higher volume gives more
reliable and robust results.
SX20 Codec API Reference Guide CE9.1, JUNE 2017.
D15316.07
About the API xConfiguration xCommand xCommand

xCommand Audio Microphones Mute

Mute all microphones.
Requires user role: INTEGRATOR, USER
USAGE:
xCommand Audio Microphones Mute

xCommand Audio Microphones ToggleMute

Toggle the microphone between muted and unmuted.
Requires user role: INTEGRATOR, USER
USAGE:
xCommand Audio Microphones ToggleMute

xCommand Audio Microphones Unmute

Unmute all microphones.
Requires user role: INTEGRATOR, USER
USAGE:
xCommand Audio Microphones Unmute
92
API Reference Guide
xStatus Appendices
Copyright © 2017 Cisco Systems, Inc. All rights reserved.