page 2 – 23
FM-531HD / May 2013
F M - 5 3 1 H D G U R U G U I
Density
The Density control adjusts how much
short‑term limiting is permitted. Higher set
-
tings will make the audio more dense and
“processed” sounding while lower settings
will be less so. Stations looking for a “com
-
pressed” sound will find the
Compression and
Density controls quite useful for tailoring the
“feel” of their audio. Note that increasing
the Density setting will not cause the final
clipper to be overdriven because Guru GUI’s
intelligence makes other adjustments behind
the scenes to prevent it. In other words, distortion will not increase simply because
Density was increased.
Low/Warm EQ (we’re leaving Loudness for last!)
The Low/Warm EQ control adjusts how powerful low frequencies sound on the
air. When the control is at “0” and has not been touched since a preset was last taken
the factory assigned equalization for that preset is being applied. Adjusting the control
either side of “0” increases or decreases the factory equalization settings. In general,
setting the control to lower numbers reduces on-air bass while moving it to higher
numbers increases it.
Mid/High EQ
The Mid/High EQ control adjusts how the higher frequencies sound on the air.
When the control is at “0” and has not been touched since a preset was last taken the
factory assigned equalization for that preset is being applied. Adjusting the control
either side of “0” increases or decreases the factory equalization settings. In general,
setting the control to lower numbers reduces on-air highs while moving it to higher
numbers increases them.
Loudness (finally!)
The Loudness
slider is used to set the desired on‑air loudness. The most complex
control within the entire Guru GUI structure, it intelligently communicates with three
powerful sections of the FM‑531HD’s processing; the 31‑band limiter, the FM Lim
-
iter/Clipper and the MPX processing. Its intelligent hand on these other processing
sections automatically optimizes the distortion vs. loudness tradeoffs as the
Loudness
slider is adjusted.
Summary of Contents for FM-531 HD
Page 2: ...Technical Manual Wheatstone Corporation May 2013 FM HD Digital Audio Processor FM 531hd...
Page 122: ...page A 2 FM 531HD May 2013 A P P E N D I C E S Appendix A General Specifications A 3 Contents...
Page 128: ...page A 8 FM 531HD May 2013 A P P E N D I C E S Appendix B FM 531HD GPI Interface A 9 Contents...