I/O Interface; Data Organization & Management - Yamaha A4000 Owner's Manual

I/O Interface

The A5000/A4000 has a built-in floppy disk drive which can be used to save and load samples, programs,
and other data. Additional storage devices such as hard disks, ZIP drives, CD-ROM drives, etc., can be con-
nected externally via the sampler's built-in SCSI interface, or internally via the SCSI and IDE connectors
provided.
An optional I/O expansion board is also available which provides digital coaxial and optical inputs and out-
puts for direct sample and playback of digital signals, as well as a number of individual analog outputs.
The A5000/A4000 wave memory can be expanded up to a maximum of 128 megabytes.
Data Organization & Management
All data in the A5000/A4000 internal memory will be lost when the power is turned off. For this reason data
save and load operations are essential for efficient operation of the A5000/A4000. In this section we'll take
a look at how the internal memory and disk storage media are related.
Data in Memory
Samples, sample banks, and programs being used by the sampler are kept in the internal memory.
Other types of data kept in internal memory are sequences and system parameters.
Sequence data consists of MIDI performance data recorded from an external MIDI device via the sam-
pler's UTILITY mode.
System parameters are retained in non-volatile memory which is not lost even when the power is
turned off. System parameters include the UTILITY mode Total EQ parameters, Panel Play, Master,
System, and MIDI parameters, as well as setup data for the RECORD mode. The system parameters
also include the program-to-part assignments for the tone generator when the Multi mode is selected.
Wave Memory
Parameter Memory
Sequence data
System Memory
Sample
Wave data
Sample parameters Sample parameters
Assign
Program 001 Program 002
Sample Select Sample Select
Program Parameter Program Parameter
Easy Edit Easy Edit
System parameters
Sample Sample
Wave data Wave data
Sample parameters
Sample Bank
Program 128
Sample Select
...
Program Parameter
Easy Edit
Chapter 3 The A5000/A4000 System & Features
A5000/A4000 •
1. System Overview
65