Yamaha SPX90 SPX90 Owners Manual Image - Page 14

STEREO

PHASING

The

SPX90

can

produce

a

wide

range

of

Phasing

ef-

fects

from

a

barely

perceptible

shift

to

a

rapid

pulsation.

Phasing

lends

an

animated

quality

to

musical

instru-

ment

and

vocal

recordings:

)dB)

DIRECT

SIGNAL

L(R)

RILI

MOD.

DELAY

TIME

MOD.

DEPTH

(TIME)

This

effect

has

the

same

parameters

as

STEREO

FLANGE,

except

that

the

DELAY

TIME

range

is

from

0.1

to

8.0

msec

and

that

it

omits

F.B.

Gain.

TREMOLO

The

TREMOLO

effect

operates

in

the

same

way

as

the

CHORUS

effect,

except

that

modulation

is

deeper

and

the

delay

variation

is

greater.

Refer

to

STEREO

FLANGE

for

the

description

of

the

parameters.

SYMPHONIC

The

programmable

parameters

for

this

preset

are

identical

to

those

for

the

Stereo

Flange

preset,

omitting

F.B.

GAIN

and

MOD

DELAY

TIME.

PITCH

CHANGE

This

program

is

used

to

change

the

pitch

of

an

input

signal.

Pitch

can

be

changed

in

semitone

increments

over

a

plus/minus

one

-octave

range.

Fine

adjustment

of

pitch

in

one

-cent

(1/100th

of

a

semitone)

increments/decrements

is

also

possible.

Pitch

change

programs

B

and

C

permit

setting

two

different

pitches.

This

makes

it

possible

to

produce

harmonizer

type

effects

(i.e.

when

you

play

a

note,

the

SPX90

outputs

two

additional

notes),

or,

if

only

a

slight

pitch

differ-

ence

is

used,

chorus

-type

effects

are

created.

Pitch

change

programs

A

and

D

permit

the

application

of

feedback

so

that

an

echo

that

changes

in

pitch

with

each

repeat

can

be

produced.

Programs

A

and

D

further

permit

pitch

control

via

the

MIDI

IN

connector.

Any

MIDI

synthesizer,

such

as

the

Yamaha

DX7,

can

be

used

to

alter

the

pitch

setting

of

the

program

by

simply

playing

the

appropriate

note

on

the

synthesizer

key-

board.

PROGRAM

PITCH

CHANGE

FEEDBACK

MIDI

PITCH-

CONTROL

PITCH

CHANGE

A

1

TONE

YES

YES

PITCH

CHANGE

B

2

TONES

(CENTER)

NO

NO

PITCH

CHANGE

C

2

TONES

(1

EACH

IN

L

&

R

CH.)

NO

NO

PITCH

CHANGE

D

1

TONE

YES

YES

PITCH.

Range:

—12

—

+12

Sets

the

degree

of

pitch

change

in

semitone

steps.

+12

corresponds

to

an

output

pitch

one

octave

higher

than

the

input

pitch,

and

—12

produces

an

output

pitch

one

octave

lower

than

the

input

pitch.

2.

FINE.

Range:

—100

-

+100

Adjusts

pitch

in

one

-cent

increments

or

decrements.

3.

DELAY

Range:

0.1

-'

400

msec

(A,

B,

D),

0.1

-

200

msec

(C)

Sets

the

delay

between

the

direct

(input

signal)

and

the

pitch

-changed

output

signal.

4.

F.B.GAIN.

Range;

0

—

99%

(A,D

only)

The

higher

this

setting,

the

more

echo

repeats

are

produced

(each

changed

in

pitch

from

the

previous

repeat).

5.

BASE

KEY.

Range:

OFF,

C1

-

C6

(A,

D

only)

This

parameter

sets

the

"BASE

KEY"

for

an

external

MIDI

synthesizer

used

to

control

the

pitch

variation

13

Yamaha SPX90 SPX90 Owners Manual Image - Page 14

Pitch, Change - symphonic

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