LinPlug Spectral - Manual (Page 65)

The Feedback dial allows you to set the number of times the signal repeats
or echoes.
The Stereo dial allows adjustment of the stereo-width, for full stereo width
keep it set fully right. The more you move it to the left, the more the effects
signal becomes monophonic. In the center position you effectively have a
mono delay. Moving it further to the left gradually widens the stereo image
again, only that the Left and Right outputs appear on the opposite side.
The Link L+R button (located beneath the Time Right dial) is used to
automatically match the feedback amount of the shorter delay to that of the
longer delay. For example, if you set the left channel delay time to 10 ms,
the right channel delay time to 100 ms and feedback to 90%, you will hear
the left channel delay fade out much more quickly than the right channel
delay (this is what you would expect!). However, when you press the Link
button the feedback of the channel with the shorter delay time is adjusted
so that the signal fades out in the same amount of time as the longer delay
(thus the feedback for the shorter time is increased).
Also included in the Delay section is a variable high pass and low pass 6dB
per Octave filter which is adjusted with the next two dials:
The Highpass (High Pass Filter Cutoff Frequency) dial is used to set the
frequency (in Hz) below which frequencies are filtered out of the signal.
Higher settings produce thinner, brighter sounds, while lower settings
produce fatter sounds including low frequencies.
The Lowpass (Low Pass Filter Cutoff Frequency) dial is used to set the
frequency (in Hz) above which frequencies are filtered out of the signal.
Higher settings produce brighter sounds while lower settings result in
darker sounds.
The “In FB” switch means “in Feedback” and changes the position of the
Filter in the signal flow. Usually the Filter is at the output of the Delay,
however, when In FB is active, the Filter is in the feedback path too. The
main difference is, that when it is in the feedback path, the echos become
more and more filtered with each iteration while when it is not in the
feedback path, all echos are filtered the same.