Radio Shack FX2 User Manual download pdf (Page 19)

Event; Ty p e

Controller C o n t r o l l e r V a l u e

176

(BOh)

Pitch Wheel v6...vC

pitch bend

amount

177

(Blh)

Modulation Wheel v6...vO

amount

178

(B2h)

Patch Select v6 set if

Left, v5 set if

Right

179

(B3h)

External Controller v6...vO

amount

180

(B4h)

Foot Pedal v6...vO

amount

181

(B5h)

Volume v6...vO

amount

182

(B6h)

Sustain Pedal v6...vO

{ 1 2 7 = o n , 0 0 =

off)

183 (B7h) Sost Pedal o>so>

( 1 2 7 = o n , 0 0 =

off)

184

(B8h)

Timbre v6...vO

amount

185

(B9h)

Release v6 vO

amount

186

(BAh)

Channel Pressure v6...vC

amount

187

(BBh)

M i x E v e n t 111

188

(BCh)

Mute Event ???

Program Change Event 217 (D9 hex)

The Program (Patch) Change Event stores the program change

number (0 - 127) in the lower 7 bits (v6...v0) of the second

word. The remainder of the second word is not used and is set

to zeros.

MSB

Word 1: 1 d6 d5 d4 d3 d2 dl dO 1

W o r d 2 : 0 x x x x x x x x x x x x x x x x

LSB

10 110 0 1

v6 v5 v4 v3 v2 vl vO

Mixdown Volume Event 218 (DA hex)

The Mixdown Volume Event stores the volume value (0 - 127)

in the lower 7 bits (v6...v0) of the second word. The remainder

o f t h e s e c o n d w o r d i s n ot us e d a n d i s s e t t o z e r os .

M S B L S B

Word 1: 1 d6 d5 d4 d3 d2 dl dO 110 110 10

W o r d 2 : 0 x x x x x x x x x x x x x x x x v 6 v 5 v 4 v 3 v 2 v l v O

Mixdown Pan Event 219 (DB hex)

The Mixdown Pan Event stores the pan value (0 - 127) in the

lower 7 bits (v6...v0) of the second word. The remainder of the

s e co n d w o r d i s n o t u s e d a nd is se t t o z e ro s .

MSB

Word 1: 1 d6 d5 d4 d3 d2 dl dO

W o r d 2 : 0 x x x x x x x x x x x x x x

LSB

11011011

X X v 6 v 5 v 4 v 3 v 2 v l v O

Song Step Event 231 (E7 hex)

Song Step Events can only be found in the song track of a song.

This Event can't store clock information (d6...d0) so the ﬁrst

event word is always 80E7 (hex). The only real difference be

tween a sequence and a song is that a song has a song track

which contains song steps. Therefore, a song can also contain

twelve tracks of regular events in addition to the song track.

Th i s i s h ow th e V FX-S D a nd th e S D-1 be c ome 2 4 t rack s e

quencers. The song track in a song points to additional sequen

ces which can contain 12 tracks in addition to the song's 12

tracks. The second event word (sE...sO) in a song step contains

the sequence number of the next sequence to be played. The

third event word sets a bit (mB...mO) to mute each of the twelve

sequence tracks. The fourth event word sets a bit (tB...tO) for

each of the sequence tracks if the track is to be transposed. The

last event word contains a signed transpose count in the upper

bits (c6...c0). The lower bits (16...10) contain the loop count

which is the number of times the sequence should be repeated.

For more information on song steps, please refer to your

o w n e r ' s m a n u a l .

MSB

Word 1: 10000000

W o r d 2 : 0 s E s D s C s B s A s 9 s 8

W o r d 3 : 0 x x x x x x m B m A m 9 m 8

W o r d 4 : 0 x x x x x x t B t A t 9 t 8

Word 5: 0 c6 c5 c4 c3 o2 cl cO

LSB

11100111

s7 s5 s5 s4 s3 s2 si sO

m? ra6 m5 m4 m3 Iii2 ml mO

t7 t6 t5 t4 t3 t2 tl to

X X 1 6 1 5 1 4 1 3 1 2 1 1 1 0

Overdub Event 232 (E8 hex)

The Overdub Event is used internally in the keyboard during

overdub operations and shouldn't appear in the disk ﬁles. This

event can't store clock information (d6...d0) and only consists

of one event word (80E8 hex).

MSB

Word 1: 10 0 0 0 0 0 0 1110 1

LSB

0 0 0

End Of Track Event 233 (E9 hex)

The End of Track Event must be the last event stored in each

track. This Event can't store clock information (d6...d0) and

only consists of one event word (80E9 hex).

MSB

Word 1: 10000000

110 1

LSB

0 0 1

Wait (Clock) Event 230 (E6 hex)

The Wait Event type was created to allow longer delays be

tween events. The delay can have a maximum value of 32,767

(7FFF hex) clock ticks and is stored in the lower 15 bits of the

second event word (cE...cO). Typically, d6...d0 are cleared in

the ﬁrst event word since a much longer delay can be achieved

in the second event word.

MSB

Word 1: 1 d6 d5 d4 d3 d2 dl dO

W o r d 2 : 0 c E c D c C c B c A c 9 c 8

LSB

1110 0 110

c7 c6 c5 c4 c3 c2 cl cO

Next time, I'll cover the sequencer format for the EPS-16 Plus

and include some suggested features for the sequencers which

would make life easier for all of us. The sequencer format for

the original EPS will be covered after the EPS-16 Plus, m

Bio: Gary Giebler is the Manager of Computer Engineering for

Eagle Comtronics — a cable TV manufacturer. Gary owns and

runs Giebler Enterprises where he produces computer soft

ware, records, tapes, and compact disks. Gary still has over

800 copies of his ﬁrst album in his bedroom closet.

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Radio Shack FX2 User Manual Page 19

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