Panel Logos - Yamaha Portatone PSR-640 Owner's Manual

* Chorus enriches the voices by making them sound
warmer and thicker — as if several instruments were
playing together at the same time. (
* The DSP effects let you process the sound in special,
unusual ways — such as applying distortion or tremolo to
a specific part. (The PSR-640 has one DSP system; the
PSR-740 features three DSP systems that can be used
simultaneously.) ( Pages 53-55)
* Harmony/Echo lets you enhance your right-hand melo-
dies with a variety of harmony and echo effects. (
56)
* Master EQ (on the PSR-740) gives you fine control over
the overall sound by letting you adjust the tone in five
separate frequency bands. (
Disk Drive
• The PSR-740/640 also features a built-in disk drive that lets
you save all your important original data (such as User
songs, User styles, User Multi Pads, Registration Memory,
etc.) to floppy disk for future recall. (
Vocal Harmony (PSR-740)
• The amazing Vocal Harmony feature (on the PSR-740)
automatically produces backup vocal harmonies for lead

Panel logos

The logos printed on the PSR-740/640 panel indicate standards/formats it supports and special features it includes.
GM System Level 1
"GM System Level 1" is an addition to the MIDI standard which guarantees that any data con-
forming to the standard will play accurately on any GM-compatible tone generator or synthesizer
from any manufacturer.
XG
XG is a new Yamaha MIDI specification which significantly expands and improves on the GM
System Level 1 standard with greater voice handling capacity, expressive control, and effect
capability while retaining full compatibility with GM. By using the PSR-740/640's XG voices, it
is possible to record XG-compatible song files.
XF
The Yamaha XF format enhances the SMF (Standard MIDI File) standard with greater functional-
ity and open-ended expandability for the future. The PSR-740/640 is capable of displaying lyrics
when an XF file containing lyric data is played.
Vocal Harmony
Vocal Harmony employs state-of-the-art digital signal processing technology to automatically add
appropriate vocal harmony to a lead vocal line sung by the user. Vocal Harmony can even change
the character and gender of the lead voice as well as the added voices to produce a wide range of
vocal harmony effects.
DOC
The DOC voice allocation format provides data playback compatibility with a wide range of
Yamaha instruments and MIDI devices, including the Clavinova series.
Style File Format
The Style File Format — SFF — is Yamaha's original style file format which uses a unique
conversion system to provide high-quality automatic accompaniment based on a wide range of
chord types. The PSR-740/640 uses the SFF internally, reads optional SFF style disks, and creates
SFF styles using the Style Recording feature.
Page 52)
Page
Page 59)
Page 65)
vocals that you sing into a microphone. You can even
change the gender of the harmony voices — for example,
letting you add female backup to your own male voice (or
vice versa). ( Page 82)
MIDI
• MIDI (Musical Instrument Digital Interface) is a worldwide
standard interface that allows various electronic music
instruments, computers and other devices to communicate
with each other. The MIDI features let you seamlessly
integrate the PSR-740/640 into a variety of systems and
applications:
* Play other instruments from the PSR-740/640. (
124)
* Play the sounds of the PSR-740/640 (including the auto
accompaniment) from a connected keyboard. (
124)
* Connect the PSR-740/640 directly to a computer, for
advanced recording, editing and playing back of song
data. ( Page 126)
* Use pre-programmed templates to instantly configure the
PSR-740/640 for your specific MIDI system/application.
( Page 128)
Important Features
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