Product manual

When a MIDI instrument receives information coded with

its “own” channel number (the one specified for reception

on that unit), it will execute the command. If the data is coded

with a different MIDI channel number, the command will

simply be ignored and the instrument will wait for the next

message. Hooking up various kinds of MIDI equipment such

as synthesizers and tone generators to the

same MIDI OUT

terminal therefore can provide totally individual simultaneous

control over up to 16 different instruments.

As far as individual channel control is concerned, the Por-

taSound PSS-680 itself works like several synthesizers (tone

generators) and a drum machine at once. Using the RE-

CEIVE CH. FILTER functions explained below, it can accept

a variety of data on different channels at the same time, thus

playing several individual FM voices plus PCM percussion

simultaneously.

MIDI MODE

Overview

The PortaSound PSS-680 has two MIDI modes with very

different applications. Generally speaking, you should choose

Keyboard Assign mode to play other MIDI equipment from

the PortaSound, and Sound Source mode when you want to

use the PSS-680 as a multi- timbral (multi-voice/multi-

channel) sound source controlled by external MIDI se-

quencers or keyboards.

The types of MIDI data transmitted and received by the

PSS-680 in these two modes are detailed below.

Operation

To switch between these two MIDI modes,

press the button labeled MIDI MODE [c] in the MIDI

section (15).

The TEMPO/PARAMETER & VALUE display will in-

dicate

2. press +.

The display will show indicating Sound Source

mode.

You can switch back and forth between MIDI MODES

with the VALUE + and – buttons.

In Sound Source mode, no sound is produced when playing

the keyboard, the DEMONSTRATION cannot be started,

and most buttons do not work.

Keyboard Assign Mode

The display shows that the PSS-580 is set to

Keyboard Assign mode (the default setting). To switch

to Sound Source Mode,