Soundtoys EchoBoy - Manual (Page 29)

Remember that the setting of the Tempo, Groove and Feel controls will all affect the feel and
sync of the delays when any of these note values or rhythm patterns are selected and used.
Prime Number Switch
When the Prime Numbers switch is in the up position delay repeats are slightly altered in time
in a very special way to minimize resonance effects. This is most noticeable in ‘dual’ mode or
‘rhythm’ mode. This is especially useful when you are using short delay times with feedback,
when chorusing, flanging or creating reverb-like effects. It keeps the repeating echoes from
building up resonance that often occurs when every repeat is at exactly the same time interval.
Tempo Control
When programming the Echo Time in musical note values, EchoBoy needs to know what tempo
your song is at so that it can compute the exact amount of echo time needed to keep things all
in sync (remember when you had to do that all math by hand – eek!)
There are three ways to tell EchoBoy what tempo your song is playing at – “tapping” it, entering
the exact BPM value, or syncing to MIDI tempo,
Tapping the Tempo
Simply place the cursor over the Tempo button and click the mouse in time with the track. You
will notice that the LED readout will change as you tap the button and display the tapped tempo
in BPM. To change the tempo to a new value, simply tap the button a couple of times and a new
value will be input. Tap tempo is really useful and allows you to adjust the delay time to be in
concert with the tempo of a track. It will not be EXACTLY in sync but will get you into the
ballpark.
Entering a BPM Value
BPM stands for Beats Per Minute, and is the standard way of specifying the tempo of a piece of
music. If you know the BPM of your track, you can enter it by clicking in the LED tempo display,