55
The Undo Pre menu allows you to view the audio signal from each of the 5 individual bands
of the Undo section after the de-‐clipper but before Undo’s multiband expansion in either
the left or right channel.
The Undo Post menu allows you to view the audio signal from each individual band or the
combined output of all bands of the Undo section after the de-‐clipper AND after Undo’s
multiband expansion in either the of right channel.
The Undo Control Signal menu allows you to view the control signal from each of the
individual bands in either the left or right channel.
The Miscellaneous menu allows you to view the audio signal from various other points in
the signal path, including after input filtering, after the multiband section, after the static
bass clipper, before and after the final clipper, and the total program throughput of either
the left or right channels. The following additional MPX information is also available:
o
The MPX Pre-‐Clipper menu allows you to view the multiplex, left de-‐modulated;
right de-‐modulated, left de-‐emphasized, and right de-‐emphasized audio signal as
well as the pilot tone before the final clipper.
o
The MPX Pre-‐Safety menu allows you to view the multiplex, left de-‐modulated;
right de-‐modulated, left de-‐emphasized, and right de-‐emphasized audio signal as
well as the pilot tone before the safety clipper.
The Monitor Out menu allows you to view the input (source) and output audio signals of the
Speaker or Headphone monitor points in either the left or right channel.
Examples and Recommended Settings for the Oscilloscope
High Frequency Headroom Monitor
o
Display the Left or Right Demod signal from the MPX Output menu
o
Set Oversampling to “On”
o
Set Phosphor Persistence to 50
o
Set Gain to -‐3
o
Set Lines to -‐1
o
Set Zoom to 4x
o
Below is a comparison of this signal to the pre-‐emphasized output so you can see
just how much additional HF headroom Omnia.9’s clipper provides!
Summary of Contents for Omnia.9
Page 2: ......
Page 8: ......
Page 103: ...95 Input Output Overview...
Page 104: ...96 MPX Input MPX Output...
Page 105: ...97 MPX Patch Point...
Page 106: ...98 Pre emphasis Patch Point...
Page 107: ...99 Undo...
Page 108: ...100 Input AGC WB AGC1...
Page 109: ...101 WB AGC3 Post Multiband...
Page 110: ...102 WB AGC3 Bass Wideband...
Page 111: ...103 WB AGC3 Bass Only...
Page 112: ...104 Multiband Processing...
Page 113: ...105 Speaker Controller...
