Yamaha Personal Electronic Piano YPP-15 - Manual (Page 12)

C. MIDI Channels
There are 16 MIDI channels (1-16). Unless MIDI
instruments are set to the same MIDI channel, they
cannot communicate MIDI channel information (Note
On, Program Change, Control Change, etc.), even
if the cables are connected properly. MIDI channels
can be likened to television channels, i.e. information
from several TV stations is transmitted through the
air, so to receive the desired program, you have to
select one channel on your TV set.
When the YPP-15 is turned on, both its transmitting
and receiving MIDI channels are setto 1. If required,
these channels can be reset.
1) Setting a MIDI Transmitting Channei
While holding down the MIDI/TRANSPOSE button,
press one of 16 keys from Cl to D^*2 according to the
table below.
Key
Channel
Cl C't D'i F 1
10
A’i
12
Ca
13
c'= D2
15
0*2
16
2) Setting a MiDI Receiving Channel
While holding down the MIDI/TRANSPOSE button,
press one of 16 keys from C3 to D^*4 according to the
table below.
Key C3 c'a Da D'a Ea Fa F'j G3 g S A3 A’s Ba C4 C'4 D4 D'4
Channel 1 2 3 4 5 6 7 8 g 10 11 12 13 14 15 16
>. Applications
The following three examples show how several of
the YPP-15’s MIDI functions can be applied in
specific setups. In order to make best use of MIDI,
it is important to determine which instruments are
most effective as Masters or as Slaves. This will
depend on the individual situation. Consulting the
MIDI implementation chart of each instrument in
your setup will help you to decide in each case. If
one instrument has more transmission capabilities
than the other(s), it will generally be better suited as
the Master. Conversely, instruments with more
recognition capabilities will be better Slaves.
Example 1: Using the YPP-15 with another key­
board or sound module
If you are a MIDI rookie, first, make a Hand-Shaking
connection between the two MIDI keyboards. After
matching the transmitting and receiving MIDI
channels (in both directions), you can use either
instrumentas Master or Slave. Whichever keyboard
you play, you will hear the sounds of both instruments.
In addition, the Slave will duplicate the Master’s
sustain, etc., as long as it is equipped to receive MIDI
messages such as Program Change, Control
Change, and so on.
* Practising with a Hand-Shaking connection is a good
way to learn which instrument will make the better
Master or Slave in a One-Way connection.
* If you’re connecting the YPP-15 to a MIDI sound module,
the latter is best used as a Slave in a One-Way connec­
tion.
3) Omni On Mode
If required, the YPP-15 can be set to receive infor­
mation on all MIDI channels (1-16). This mode is
called “Omni On”. To set the YPP-1 5 to this mode,
while holding down the MIDI/TRANSPOSE button,
press the E4 key. To get out of this mode, either
select a specific receiving channel, or turn off the
YPP-15, then turn it on again after a few seconds.
Note: If you have several Slaves, all set to OMNI
Mode, they will all receive the same instructions, and
therefore play the same music. To achieve individual
control of the Slaves, that is, to get each one to
respond to different instructions and play its own
part in an ensemble, you must set the Slaves’ MIDI
receiving channels individually. When a specific
channel is selected, it means the instrument is in
OMNI OFF Mode.
DIAGRAMS
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OUT
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IN
JiL III
YPP-15
YPP-15
10