Effects And Tempo Synchronization - Yamaha CL1 Reference Manual

Effects and tempo synchronization

Some effects of the CL series can be synchronized with the tempo. There are two such types of effect;
delay-type effects and modulation-type effects. For delay-type effects, the delay time will change
according to the tempo. For modulation-type effects, the frequency of the modulation signal will
change according to the tempo.
Parameters related to tempo synchronization
The following five parameters are related to tempo synchronization.
1) SYNC 2) NOTE 3) TEMPO 4) DELAY 5) FREQ.
SYNC: .................................This is the on/off switch for tempo synchronization.
NOTE and TEMPO: .........These are the basic parameters for tempo synchronization.
DELAY and FREQ.: ..........DELAY is the delay time, and FREQ. is the frequency of the
modulation signal. These directly affect the way in which the effect
sound will change. DELAY is relevant only for delay-type effects, and
FREQ. is relevant only for modulation-type effects.
How the parameters are related
Tempo synchronization calculates the DELAY (or FREQ.) value
Turn SYNC ON
Change NOTE → DELAY (or FREQ.) will be set
In this case, the DELAY (or FREQ.) value is calculated as follows.
DELAY (or FREQ.) = NOTE x 4 x (60/TEMPO)
Change TEMPO → DELAY (or FREQ.) will be set
In this case, the DELAY (or FREQ.) value is calculated as follows.
DELAY = NOTE x 4 x (60/TEMPO) sec
FREQ. = (TEMPO/60) / (NOTE x 4) Hz
Example 1:
When SYNC=ON, DELAY=250 ms, TEMPO=120, you change NOTE from 8th note to quarter
note
DELAY = new NOTE x 4 x (60/TEMPO)
= (1/4) x 4 x (60/120)
= 0.5 (sec)
= 500 ms
Thus, the DELAY will change from 250 ms to 500 ms.
*a
from the TEMPO and NOTE.
247
Example 2:
When SYNC=ON, DELAY=250 ms, NOTE=8th note, you change TEMPO from 120 to 121
DELAY = NOTE x 4 x (60 / new TEMPO)
= (1/8) x 4 x (60/121)
= 0.2479 (sec)
= 247.9 (ms)
Thus, the TEMPO will change from 250 ms to 247.9 ms.
Ranges of the NOTE and TEMPO values
The ranges of the NOTE and TEMPO values are limited by the ranges of the DELAY or FREQ. values.
You cannot set NOTE or TEMPO values that would cause DELAY or FREQ. to exceed their maximum
possible values when synchronized to tempo. This limitation also applies even when SYNC is OFF.
Special characteristics of the TEMPO parameter
The TEMPO parameter has the following characteristics that are unlike other parameters.
• It is a common value shared by all effects
• You cannot stored it to or recall it from the Effects Library. (You can store it to and recall it from a
Scene.)
This means that the TEMPO value may not necessarily be the same when an effect is recalled as when
that effect was stored. Here is an example.
Store the effect: TEMPO=120  Change TEMPO to 60  Recall the effect: TEMPO=60
Normally when you change the TEMPO, the DELAY (or FREQ.) will be re-set accordingly. However if
the DELAY (or FREQ.) were changed, the effect would sound differently when recalled than when it
was stored. To prevent the effect from changing in this way between store and recall, the CL series does
not update the DELAY (or FREQ.) value when an effect is recalled, even if the TEMPO is no longer the
same as when that effect was stored.
* The NOTE parameter is calculated based on the following values.
= 1/48 = 1/24 = 1/16
= 3/16 = 1/4 = 3/8
*a Rounded values are used for the calculation results.
= 1/12 = 3/32 = 1/8
= 1/2 = 3/4 = 1/1
Reference Manual
Appendices
= 1/6
= 2/1