Crestron electronic C2N-VEQ4 Volume C2N-VEQ4 Manual De Usuario

Cresnet 4-Channel Digital Volume Control 

Crestron C2N-VEQ4

•  Cresnet 4-Channel Digital Volume Control: C2N-VEQ4 

The C2N-VEQ4 provides twelve filters for each channel, with five modes of audio 
equalization (settable using Digital Media Tools): 

•  A ten-band graphic equalizer and a two-band parametric equalizer. In this 

mode, the first ten filters in all channels are used to set up the default 
frequencies (31.5Hz, 63Hz, 125Hz, 250Hz, 500Hz, 1KHz, 2KHz, 4KHz, 
8KHz, and 16KHz) for graphic equalization, leaving filters 11 and 12 
available for parametric equalization. 

•  A five-band graphic equalizer and a seven-band parametric equalizer. In this 

mode, the first five filters in all channels are used to set up the default 
frequencies (63Hz, 250Hz, 1KHz, and 4KHz, 10KHz) for graphic 
equalization, leaving filters 6 through 12 available for parametric 
equalization. 

•  A speech optimized version of the five-band graphic and seven-band 

parametric equalizer arrangement utilizing default frequencies (160Hz, 
600Hz, 1KHz, and 2.5KHz, 5KHz) 

•  A three-band graphic equalizer and a nine-band parametric equalizer. Here 

the first three filters in all channels are for the default frequencies (250Hz, 
1KHz, and 4KHz), leaving filters 4 through 12 available for parametric 
equalization in case you want to notch out a 60 Hz hum or other resonant 
frequency.  

•  A full twelve-band parametric equalizer. You may use the equalizer as a full 

twelve-band parametric equalizer, however it is recommended that you first 
become fully familiar with equalization techniques. 

The <FilterType> inputs set the type of filter or equalization. Valid values are as 
follows: 

0 = Off (No parametric equalization). 

1 = Peaking EQ (Permits precise amplitude adjustment of a selectable range of 

frequencies, or removes an unwanted frequency from a signal). The 
bandwidth range can vary from a small slice of the spectrum to a 3.5-octave 
area. Typically, peaking EQ filters allow fine adjustment to compensate for 
room acoustics, noise, and speaker limitations. 

2 = High Pass (Filters out all audio below the <FilterFreq> levels). A high-pass 

filter circuit passes all signals that have a frequency higher than the specified 
frequency, while attenuating all frequencies lower than its specified 
frequency. 

3 = Low Pass (Filters out all audio above <FilterFreq> levels). A low-pass 

filter passes all frequencies below the specified frequency, while attenuating 
all frequencies above this specified frequency.  

4 = Treble Shelf (Uniformly boosts or attenuates all frequencies above the 

<FilterFreq> levels, without affecting the frequencies below. The amount of 
modification is given by <FilterGain>). A Treble Shelf filter boosts or 
attenuates all frequencies above the specified frequency in a uniform manner 
while not affecting the low frequencies below the specified frequency. For 
example: Because bass frequencies have longer wavelengths, small speakers 
may sound distorted when trying to reproduce these frequencies. The Treble 
Shelf filter can increase the proportion of treble to bass, enabling the smaller 
speakers to produce a clearer sound.