User`s guide

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The delay time can be specified in milliseconds (ms.) or as a
multiple of the host tempo (“Tempo”), depending on the setting of
the ms/Tempo pop-up menu.
The output of the Sample/Hold process can be used to modulate
the frequency of another waveform; this was a common analog
synthesizer effect. You can sample-and-hold white noise, a user
selection, or any of the provided source waveforms.
By setting the hold time to a very short value (such as 0.1
millisecond) and listening directly to the result, you can produce
interesting aliasing effects.
Filters
You can use the second-order resonant filters to change the
spectral balance of a sound.
The lowpass filter passes the frequencies below the specified cutoff
and rolls off the higher frequencies at a slope determined by the Q
value. The highpass filter passes the higher frequencies and rolls off
the lower frequencies. The bandpass filter passes an area around
the cutoff frequency and rolls off frequencies to either side.
The Q value controls the slope or sharpness of the filter. Q values of
1 or so are fairly standard and result in a roll-off of 12 dB/octave
for the lowpass and highpass filters, and 6 dB/octave on each side
for the bandpass filter. Higher Q values result in higher slopes and
place a sharp resonant peak at the cutoff frequency.
The following illustration shows the resonant peak resulting from a
lowpass filter with a cutoff frequency of 1 kHz and a Q of 10: