Fostex VF08 User Manual download pdf (Page 41)

Mixer Functions

<Note>

The effect edit operations described here are only avail-

able to Tracks 1 through 6.

On Track 7/8, a dedicated "Mastering effects" is built in

and you can edit the effects while carrying out the mas-

tering mode. See "Chapter 5 Advanced Functions" for de-

tails.

Editing Effects

This section describes how to use the internal DSP multi-effect processor.

The DSP multi-effect processor incorporates 38 types of digital effects and you can edit parameters for each

effect type.

To understand various effect functions, we recommend to operate the unit while hearing how the actual effect

sound changes.

The DSP multi-effect processor built in the VF08 uses the Fostex A.S.P. (Advanced Signal Processing) technology

and provides the high-performance ambience effect that is comparable to professional reverb units.

Before describing the VF08 effect edit mode, we briefly

explain the effect functions (reverb, delay, chorus and

flanger).

* A. S. P.

(Fostex Advanced Signal Processing Technology)

The A. S. P. is an exclusive new digi-

tal effect processing technology

extracts maximum efficiency from

the limited DSP power.

It achieves an overwhelmingly high

density Early Reflection sound and wonderfully smooth

High Dump response through the H. F. A. (Harmonic

Feedback Algorithm). Also, it carries out an elaborate

reverb simulation with clear sounds through the H. D.

L. P. (Hi-Density Logarithmic Processing), which elimi-

nates the mutual interference between the numerous

integrated delay modules and reduce the impurity and

girt of the sound.

* H. F. A. (Harmonic Feedback Algorithm)

There is one of indispensable elements in the natural

echo called “Early Reflection Sound,” which is usually

sacrificed in commercial reverb products in order to

reduce costs. (In practice, the Early Reflection Sound

means the very first reverberated sound that bounces

back from walls, floors and ceilings of concert halls).

The entire reverb sound quality depends on this Early

Reflection Sound and how closely it can resemble the

real echo. The H. F. A. is an algorithm that enables the

effect unit to reproduce a clear and natural Early Re-

flection Sound by applying an ideal harmonic feed-

back to each delay module.

* H. D. L. P. (Hi-Density Logarithmic Processing)

The reverb sounds consist of lots of small delay ele-

ments combined in a complex way, which are produced

by many delay modules inside the effect unit. In order

to obtain smooth and comfortable reverb sounds, it is

very important to efficiently organize the relationship

between each delay module and minimize negative

mutual interference. The H. D. L. P. is a technology

which applies efficient logarithmic processing to each

delay module, so that they can work in the most effi-

cient way in order to eliminate harmful reverb elements

and roughness. This makes it possible to establish high

density and transparent sounds.

Reverb:

The so called Reverb effect consists of various reflection

sounds mixed together. For example, when you clap your

hands in a tunnel, you will hear the sound linger even

after you stop clapping your hands. This is the Reverb.

The sounds we normally hear in daily life have three types

of sounds mixed together, i.e., “Direct sound,” “Early Re-

flection sound” and “Late Reflection sound.”

The Direct sound means the sound directly reaches the

ears from the sound source. The Early Reflection sound

means the sound that comes after the Direct sound and

has rebound off the wall of the tunnel up to a few times.

The Late Reflection sound means that the sound rebounds

many times long after the Direct sound has disappeared.

Our ears normally hear the “Direct sound” - “Early Reflec-

tion sound” - “Late Reflection sound” in the order.

Delay:

This is the effect to added a delayed sound to the original

sound. You can obtain a richer sound or completely change

the original source sound by using the Delay.

Chorus:

This makes the one original sound appear to have many

sources. The Chorus is used to widen or thicken the origi-

nal sound.

Flanger:

The Flanger is one of applications of the Delay.

This is used to create a sound like a jet airplane ascending

or descending.

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Fostex VF08 User Manual Page 41

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