Bandpass Filter/Log Converter Commands; Input/Output Switching Commands - AKG CEQ1/1 Manual

Bandpass Filter/Log Converter Commands

Output BP Filter Center Frequency - Outputs the current center frequency of the 1/3 octave bandpass filter. The first
byte sent is the frequency, and the second byte is the range multiplier. The range of the frequency byte is from 1­
255. The values for the range multiplier are 1, 2, or 3. These values correspond to x1, x10, and x100.
Host sends command - 11
Host receives 2 bytes:
Set BP Filter to 1/3 Octave Center Frequency - Allows the center frequency of the 1/3 octave bandpass filter to be set
to one of the 27 ISO center frequencies between 40Hz and 16KHz. Byte 1 is the 1/3 octave frequency (0-26, 0 - 40Hz,
26 - 16KHz).
Host sends command - 13
Host sends 1 byte:
Output BP Filter Log Converter Level - Outputs to dB level of the signal being measured by the 1/3 octave
bandpass filter. Note the only values from 20 to 120 (-60 to -10) are valid. If a 0 is returned, the level is below -60, and
if a 255 is returned, the level exceeds -10.
Host sends command - 14
Host receives 1 byte: 20-120, 0, or 255; BP filter level

Input/Output Switching Commands

Output Input Source - Outputs the current input source, EQ In or Ref Mic In for either the current setup or one of the
stored Target EQ curves.
Host sends command - 15
Host sends 1 byte:
Host receives 1 byte: 0 - EQ In is source, 1 - Ref Mic In is source
Set Input Source - Allows the EQ1 input source to be set.
Host sends command - 16
Host sends 2 bytes:
Host receives 1 byte: 100 to confirm
Output Output Source - Outputs the current output source, EQ Out or Noise Out.
Host sends command - 17
Host receives 1 byte: 0 - EQ Out is source, 1 - Noise Out is source
Set Output Source - Allows the EQ1 output source to be set.
Host sends command - 18
Host sends 1 byte: 0 - EQ Out is source, 1 - Noise Out is source
Byte 1: Center frequency (1-255)
Byte 2: Range multiplier (1-x1, 2-x10, 3-x100)
Byte 1: Center frequency (0-26)
Byte 1: 0 ­ Current input source
1 ­ User 1 source
2 ­ User 2 source
3 ­ User 3 source
4 ­ Factory 1 source
5 ­ Factory 2 source
6 ­ Factory 3 source
Byte 1: 0 - Change current setting
1 - User Target Curve 1
2 - User Target Curve 2
3 - User Target Curve 3
Byte 2: 0 - EQ In, 1 - Ref Mic In
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CEQ1/1 und CEQ1/1BB