для Cisco Cisco TelePresence MX700

Audio Console

The system has 8 user-definable equalizers, each made
up of 6 second order IIR filter sections.

These 6 filter sections can be modified independently of
each other by setting the four parameters:
•

. The filter types available are Peaking

(band pass / band stop), low shelf, high shelf, low pass
and high pass.

•

. Available range is –20.00 to +20.00 dB in steps

of 0.01 dB.

•

. Available range is 20–20 000 Hz in steps

of 1 dB.

•

. Available range is 0.13–100.00 in steps of

0.01.

You may set these parameters by dragging and dropping,
by specifying them numerically, or if you wish, combine
the two to the extent you want.

Each of these 8 equalizers can be applied to one or
more of the audio inputs of the codec, but only one per
input—they cannot be cascaded.

For maximum flat response, the Q-value should be set
to

⁄

√2

. for the high- and low-pass filters, as well as for

the high- and low-shelf filters.

The Q-value of a filter is defined as the center frequency
divided by the –3 dB filter bandwidth.

101 102 103 104

Frequency (Hz)

Peaking filter

Gain

8
6
4
2
0

-2
-4

-6
-8

101 102 103 104

Frequency (Hz)

Low shelf filter

Gain = 6 dB

Gain = 4 dB

Gain = 2 dB

Gain = -2 dB

Gain = -4 dB

Gain = -6 dB

8
6
4
2
0

-2
-4

-6
-8

Frequency (Hz)

101 102 103 104

Frequency (Hz)

High shelf filter

8
6
4
2
0

-2
-4

-6
-8

Gain = 6 dB

Gain = 4 dB

Gain = 2 dB

Gain = -2 dB

Gain = -4 dB

Gain = -6 dB

101 102 103 104

Frequency (Hz)

Low pass and high pass filters

Highpass filter

2
0

-2

-6
-8

-10
-12
-14
-16
-18

-20

Lowpass filter

the equalizer funCtionality

Introduction

Contents

Video compositor

Sources of inspiration