Cisco TelePresence System Profile Series Reference Guide

D14642.15 Codec C40-C60 API Reference Guide TC7.0, JANUARY 2014. Copyright © 2010–2014 Cisco Systems, Inc. All rights reserved. 88
Cisco TelePresence System Codec C40/C60 API Reference Guide
Audio commands
xCommand Audio Equalizer List
Shows the current equalizer settings for the codec.
Requires user role: ADMIN
Parameters:
EqualizerId: <1..8>
Example:
xCommand Audio Equalizer List EqualizerId: 1
*r AudioEqualizerListResult Equalizer 1 Section 1 FilterType: "Peaking"
*r AudioEqualizerListResult Equalizer 1 Section 1 Frequency: "100"
*r AudioEqualizerListResult Equalizer 1 Section 1 Q: "4"
*r AudioEqualizerListResult Equalizer 1 Section 1 Gain: "0"
*r AudioEqualizerListResult Equalizer 1 Section 2 FilterType: "Peaking"
*r AudioEqualizerListResult Equalizer 1 Section 2 Frequency: "200"
*r AudioEqualizerListResult Equalizer 1 Section 2 Q: "4"
*r AudioEqualizerListResult Equalizer 1 Section 2 Gain: "0"
*r AudioEqualizerListResult Equalizer 1 Section 3 FilterType: "Peaking"
*r AudioEqualizerListResult Equalizer 1 Section 3 Frequency: "500"
*r AudioEqualizerListResult Equalizer 1 Section 3 Q: "4"
*r AudioEqualizerListResult Equalizer 1 Section 3 Gain: "0"
*r AudioEqualizerListResult Equalizer 1 Section 4 FilterType: "Peaking"
*r AudioEqualizerListResult Equalizer 1 Section 4 Frequency: "1000"
*r AudioEqualizerListResult Equalizer 1 Section 4 Q: "4"
*r AudioEqualizerListResult Equalizer 1 Section 4 Gain: "0"
*r AudioEqualizerListResult Equalizer 1 Section 5 FilterType: "Peaking"
*r AudioEqualizerListResult Equalizer 1 Section 5 Frequency: "2000"
*r AudioEqualizerListResult Equalizer 1 Section 5 Q: "4"
*r AudioEqualizerListResult Equalizer 1 Section 5 Gain: "0"
*r AudioEqualizerListResult Equalizer 1 Section 6 FilterType: "Peaking"
*r AudioEqualizerListResult Equalizer 1 Section 6 Frequency: "5000"
*r AudioEqualizerListResult Equalizer 1 Section 6 Q: "0"
*r AudioEqualizerListResult Equalizer 1 Section 6 Gain: "0"
** end
xCommand Audio Equalizer Update
The system has eight user defined equalizers, each made up of six second order IIR sections. Each
of the eight equalizers can be applied to one or more of the audio input and output connectors on
the codec. Each IIR section can be modified independently.
There are five filter types, and the frequency response variations dependent on some of the
parameter variations. The Q-value for low pass, high pass, low shelf and high shelf filters should
be set to 1/sqrt(2) in order to get maximally flat responses. The Q-value (or Q-factor) is defined as
Q=f0/bw. Where f0=resonance frequency in Hz; and bw=filter bandwidth in Hz.
To switch off one of the six equalizer sections; set the second order section to have a flat frequency
response. This can be done by setting the filter type to "none" or by setting the filter type to
"peaking" and the gain to "0" (zero).
We recommend using the TC Console tool, with the embedded equalizer GUI, to modify the
equalizers. The TC Console software is found on the Developer Zone web page. Go to: http://
developer.cisco.com/web/telepresence-developer/tools/integrators/tc-console.
Requires user role: ADMIN
Parameters:
EqualizerId(r): <1..8>
Section(r): <1..6>
FilterType(r): <highpass/highshelf/lowpass/lowshelf/none/peaking>
Frequency(r): <S: 0, 32>
Q(r): <S: 0, 32>
Gain(r): <S: 0, 32>
Example:
xCommand Audio Equalizer List EqualizerId: 1 Section: 1 FilterType:
Peaking Frequency: "100" Q: "4" Gain: "0"
*r AudioEqualizerListResult Equalizer 1 Section 1 FilterType: "Peaking"
*r AudioEqualizerListResult Equalizer 1 Section 1 Frequency: "100"
*r AudioEqualizerListResult Equalizer 1 Section 1 Q: "4"
*r AudioEqualizerListResult Equalizer 1 Section 1 Gain: "0"
*r AudioEqualizerListResult Equalizer 1 Section 2 FilterType: "Peaking"
*r AudioEqualizerListResult Equalizer 1 Section 2 Frequency: "200"
*r AudioEqualizerListResult Equalizer 1 Section 2 Q: "4"
*r AudioEqualizerListResult Equalizer 1 Section 2 Gain: "0"
*r AudioEqualizerListResult Equalizer 1 Section 3 FilterType: "Peaking"
*r AudioEqualizerListResult Equalizer 1 Section 3 Frequency: "500"
*r AudioEqualizerListResult Equalizer 1 Section 3 Q: "4"
*r AudioEqualizerListResult Equalizer 1 Section 3 Gain: "0"
*r AudioEqualizerListResult Equalizer 1 Section 4 FilterType: "Peaking"
*r AudioEqualizerListResult Equalizer 1 Section 4 Frequency: "1000"
Contents
Introduction
About the API
xConfiguration
Appendices
xCommand
xStatus
xCommand

Cisco TelePresence System Profile Series Specifications

General

Brand	Cisco
Model	TelePresence System Profile Series
Category	Conference System
Language	English