M-Audio NRV10 Manuale utente

NRV10 InterFX User Guide

Version 1.0

1Getting Started .................................... 4

1.1 Check for the Latest Update ...................................................................4

1.2 A Tutorial on Working with the NRV10 interFX Software:.......................4

1.2.1 Preparing the NRV10 Mixer for Use with NRV10 interFX:...............4

1.2.2 Processing Signals with NRV10 interFX:.........................................5

1.2.2.1 Applying the Expander-Gate: ...................................................5

1.2.2.2 Applying the Compressor: ........................................................6

1.2.2.3 Working with Custom Effects:...................................................7

1.2.2.4 Setting Optimal Output Gain: ...................................................7

1.2.2.5 Processing Additional Channels:..............................................8

1.2.3 Storing a Program: ..........................................................................8

1.2.4 Loading a Program: .........................................................................8

1.2.5 Adjusting the Latency of the NRV10 Mixer: .....................................8

1.2.6 Using NRV10 interFX with other Applications: ................................9

2NRV10 interFX User Interface

Overview ................................................10

3Included Effects ..................................15

3.1 Common Effect Controls.......................................................................15

3.2 Effect Menu Bar....................................................................................16

3.3 BPM Delay............................................................................................17

3.4 Chorus ..................................................................................................18

3.5 Distortion ..............................................................................................19

3.6 Flanger .................................................................................................20

3.7 Compressor ..........................................................................................21

3.8 Expander-Gate .....................................................................................22

4Options Menu ...................................24

4.1 Program:...............................................................................................24

4.2 Window:................................................................................................24

4.3 Help: .....................................................................................................24

4.4 Check for Updates................................................................................24

4.5 Preferences: .........................................................................................24

5Preferences Dialog ...........................25

5.1 General Tab..........................................................................................25

5.2 Audio Tab .............................................................................................25

5.3 Interface Tab ........................................................................................25

5.4 Folders Tab ..........................................................................................25

6Adjusting the Latency of the NRV10

Mixer......................................................26

7NRV10 Mixer-NRV10 interFX Signal

Flow Diagram ....................................... 27

8Keyboard Shortcuts ..........................28

9Troubleshooting................................29

9.1 Loud Feedback Heard After Launching NRV10 interFX .......................29

9.2 Noticeable Delay Between Input to the NRV10 Mixer, and Output from

NRV10 interFX: ...............................................................................................29

9.3 Crackles, Clicks, or Pops:.....................................................................29

9.4 Installed VST Plug-ins Are Not Available in NRV10 interFX:................29

9.5 The Volume Fader and Pan Knobs of the NRV10 Mixer Do Not affect

NRV10 interFX: ...............................................................................................30

10Contacting Technical Support...........31

11 Credits................................................32

1Getting Started

Welcome to the NRV10 interFX User Guide. The NRV10 interFX software is an audio

processing application designed specifically for the NRV10 Mixer, greatly expanding its

audio processing capabilities. Typically, you will use NRV10 interFX in a live situation,

when you want to add more effect processing to microphones and/or other audio

sources plugged into the NRV10 Mixer. The channel configuration of NRV10 interFX is

identical to the NRV10 Mixer, providing four mono channels and two stereo channels.

Due to this configuration, there is no need to configure the inputs and outputs of NRV10

interFX. After launching the software, simply use the per-channel Expander-Gate and

Compressor, and choose up to two user-definable VST effects per channel.

1.1 Check for the Latest Update

To ensure that you have the most recent version of NRV10 interFX, choose “Check for

Updates”from the

Options Menu

of the NRV10 interFX software (press the

Options

Button

). This action opens the NRV10 interFX update page of the Audiffex website.

Before downloading and installing the update, press the

Options Button

, choose

“Help,”and then “About.”Compare the version number reported by the

About Dialog

with the version number listed on the Audiffex website. If the version numbers match,

you do not need to update NRV10 interFX.

1.2 A Tutorial on Working with the NRV10 interFX

Software:

Below is a tutorial that describes the typical workflow of NRV10 interFX. This tutorial

assumes that the driver of the NRV10 Mixer is installed, and that the NRV10 Mixer is

connected to your computer:

1.2.1 Preparing the NRV10 Mixer for Use with NRV10

interFX:

To use the NRV10 Mixer with NRV10 interFX, ensure that the Pre EQ/Post EQ

button of the NRV10 Mixer is pushed out/up before launching NRV10 interFX. If this

button is pushed in/down when using NRV10 interFX, you will experience feedback. In

addition, ensure that the CH/FW buttons at the top of each channel of the NRV10 Mixer

are pushed in/down. This sends the signal from each channel of the NRV10 Mixer to

the associated channel of the NRV10 interFX software. NRV10 interFX then outputs the

processed signals to the related channels of the NRV10 Mixer. In this way, NRV10

interFX acts as an effect processing insert point for each channel of the NRV10 Mixer,

before all channels are summed to the stereo output of the NRV10 Mixer.

1.2.2 Processing Signals with NRV10 interFX:

As mentioned above, NRV10 interFX matches the channel configuration of the NRV10

Mixer, eliminating the need to configure the inputs and outputs of NRV10 interFX. For

example, if you have a microphone plugged into channel 1 of the NRV10 Mixer,

channel 1 of NRV10 interFX processes that microphone. NRV10 interFX offers an

Expander-Gate, followed by a Compressor, and then two custom effect slots on each

channel. Signals are processed in that order, and these "processors" are ordered from

top to bottom graphically, where the Expander-Gate is at the top of each channel, and

the second custom effect slot at the bottom. The User Guide of the NRV10 Mixer details

various signal connections, such as microphone and line inputs. Assuming that you've

followed the User Guide of the NRV10 Mixer, and have a microphone plugged into

channel 1 of the NRV10 Mixer, follow the directions below to process the signal of the

microphone:

1.2.2.1 Applying the Expander-Gate:

Note: While following this tutorial, if you perceive latency or a delay in the processed

signal, see Adjusting the Latency of the NRV10 Mixer.

An Expander-Gate is often used to reduce background noise, or "bleed" from other

instruments/sources. For example, if you apply the Expander-Gate to channel 1 (where

your microphone is attached), you can ensure that the channel outputs audio only

when you sing into the microphone, reducing the possibility of feedback, and

producing a cleaner signal. Once you have set a suitable level for the microphone

(directly on the NRV10 Mixer), follow these steps to apply the Expander-Gate of the

NRV10 interFX software's first channel to the microphone. The Expander-Gate is

located at the top of each NRV10 interFX channel:

1. By default, NRV10 interFX disables all Expander-Gates. To enable the Expander-Gate

on channel 1, click the

Expander-Gate Bypass Button

of channel 1. When the Expander-

Gate is not bypassed, the

Expander-Gate Bypass Button

does not display a red LED.

2. Move the

Expander-Gate Ratio Control

of channel 1 fully clockwise.

3. Move the

Expander-Gate Threshold Control

of channel 1 fully counterclockwise.

4. As you sing or play an instrument into the microphone, slowly move the

Expander-

Gate Threshold Control

of channel 1 clockwise. At some position (depending on how

loudly you are singing or playing), this movement causes your microphone signal to

"mute." Whenever the microphone signal falls below the threshold setting of the

Expander-Gate, the Expander-Gate mutes the signal.

5. If you wish to reduce the volume of the signal, rather than mute it when the

microphone signal falls below the threshold setting, move the

Expander-Gate Ratio

Control

of channel 1 counterclockwise, until you achieve the desired result. This

process is commonly referred to as "downward expansion."

6. By adjusting the

Expander-Gate Attack Control

, you can adjust how fast the signal

reduces to the setting of the

Expander-Gate Ratio Control

, after the signal falls below

the threshold setting of the Expander-Gate. The fully counterclockwise position yields

the fastest "attack," and the fully clockwise position yields the slowest "attack."

7. By adjusting the

Expander-Gate Release Control

, you can adjust how fast the signal

"un-mutes," or increases from the setting of the

Expander-Gate Ratio Control

, after the

signal exceeds the threshold setting of the Expander-Gate. The fully counterclockwise

position yields the fastest "release," and the fully clockwise position yields the slowest

"release."

1.2.2.2Applying the Compressor:

A Compressor reduces the dynamic range of an audio signal (the difference between

the loudest and softest sound produced). For example, a song might include relatively

quiet vocals in the verse, with significantly louder vocals in the chorus. The Compressor

can help compensate for the difference in loudness between the two song sections.

Once you have set a proper input level for the microphone (directly on the NRV10

Mixer), follow these steps to apply the Compressor of the NRV10 interFX software's first

channel to the microphone signal. The Compressor is located below the Expander-

Gate of each NRV10 interFX channel, and is labeled "Comp":

1. By default, NRV10 interFX disables all Compressors. To enable the Compressor on

channel 1, click the

Compressor Bypass Button

of channel 1. When the Compressor is

not bypassed, the

Compressor Bypass Button

does not display a red LED.

2. Move the

Compressor Ratio Control

of channel 1 to approximately 9 o'clock.

3. Move the

Compressor Threshold Control

of channel 1 fully clockwise.

4. As you sing or play an instrument into the microphone, slowly move the

Compressor

Threshold Control

of channel 1 counterclockwise. At some position (depending on how

loudly you are singing or playing), this movement causes your microphone signal to

reduce in volume. Whenever the microphone signal exceeds the threshold setting of

the Compressor, the Compressor reduces the volume of the signal.

5. The

Compressor Ratio Control

determines exactly how much the Compressor

reduces the signal, once the signal exceeds the threshold setting of the Compressor.

The fully counterclockwise position yields minimum compression, while the fully

clockwise position yields maximum compression, or "limiting."

6. By adjusting the

Compressor Attack Control

, you can adjust how fast the signal

compresses (reduces to the setting of the

Compressor Ratio Control)

after the signal

exceeds the threshold setting of the Compressor. The fully counterclockwise position

yields the fastest "attack," and the fully clockwise position yields the slowest "attack."

7. By adjusting the

Compressor Release Control

, you can adjust how fast the signal

increases from the setting of the

Compressor Ratio Control,

after the signal falls below

the threshold setting of the Compressor. The fully counterclockwise position yields the

fastest "release," and the fully clockwise position yields the slowest "release."

1.2.2.3Working with Custom Effects:

Each channel of NRV10 interFX allows you to load up to two custom, or user-defined,

VST effects. The

User Effect Slots

are located beneath the Compressor of each channel.

Both

User Effect Slots

function in the same manner, so we'll cover only the first

User Effect Slot

in this tutorial. To load a VST effect to

User Effect 1

, follow these steps:

1. Click the

User Effect 1 Plug-in Chooser

of channel 1, and select the desired plug-in.

2. To open the editor window of the effect, click the

User Effect 1 Edit Button

3. To bypass

User Effect 1

, click the

User Effect 1 Bypass Button

4. To remove the effect, click the

User Effect 1 Plug-in Chooser

, and select "Remove

Plug-in" from the resultant menu.

Note: If NRV10 interFX does not show plug-ins that you known are installed on your

system, refer to the Troubleshooting section of this guide.

1.2.2.4Setting Optimal Output Gain:

Located at the bottom of each NRV10 interFX channel, you'll find a

Gain Control

and a

Level Meter

. The

Gain Control

raises or lowers the output of the NRV10 interFX channel

to the NRV10 Mixer, where the 12 o'clock position equals no gain change. Depending

on the Expander-Gate, Compressor, and custom effect settings of a channel, you may

need to alter the

Gain Control

. While adjusting the

Gain Control

, observe the

Level Meter

. If the uppermost LED lights up (the red LED), move the

Gain Control

counterclockwise to reduce the signal's loudness, and thus prevent distortion. It is also

good practice to "boost" the signal as much as possible, without creating distortion. To

increase or "boost" the loudness of the signal, move the

Gain Control

clockwise.

1.2.2.5Processing Additional Channels:

The instructions above apply to all channels of NRV10 interFX. When selecting your

input sources (microphones, turn-tables, etc) for the NRV10 Mixer, keep in mind that

channels 1 through 4 are mono channels, and channels 5/6 and 7/8 are stereo

channels .

1.2.3 Storing a Program:

Program

contains all channel settings of NRV10 interFX. Using

Programs

, you can

quickly store and recall NRV10 interFX settings. For example, in a live setting, you can

create

Programs

tailored to specific songs and instruments. To save all channel

settings of NRV10 interFX to a

Program

, follow these steps:

1. Click the

Store Button

, located at the top of the NRV10 interFX user interface.

2. After clicking the store button, additional controls appear at the top of the NRV10

interFX user interface, as pictured in the graphic below:

3. Use the up/down arrows to select the desired

Program Number

. There are 128

Program Numbers

available.

4. Type the desired

Program

name into the name field.

5. Click the

OK Button

6. If a

Program

exists in the chosen

Program Number

, clicking the

OK Button

will

overwrite that

Program

If you wish to cancel the store operation, click the

Cancel Button

1.2.4 Loading a Program:

To load a

Program

, follow these steps:

1. Press the

Select Button

, located at the top of the NRV10 interFX user interface.

2. Click the desired

Program

from the resultant list.

1.2.5 Adjusting the Latency of the NRV10 Mixer:

As NRV10 interFX was designed primarily for live settings, it is vitally important to use

the lowest possible latency setting allowed by your computer. Latency is a measure of

the delay between the time that sound enters the NRV10 Mixer, travels through NRV10

interFX, and feeds back to the NRV10 Mixer. Depending on the processing power of

your computer, you may hear clicks or pops if the latency setting of the NRV10 Mixer is

too low. If you hear clicks or pops, raise the latency setting incrementally until you

achieve "glitch-free" audio playback.

To adjust the latency setting of the NRV10 Mixer, follow these steps:

1. Click the

Options Button

of NRV10 interFX.

2. From the resultant menu, choose "Preferences."

3. In the

Preferences Dialog

, click the

Audio Tab

4. Click the Control Panel Button of the

Preferences Dialog

. This action opens the

NRV10 Control Panel.

5. Click the Hardware Tab of the NRV10 Control Panel.

6. Using the control labeled "ASIO/WDM Buffer Size," select the desired buffer size,

and close the NRV10 Control Panel.

7. Click the

Close Button

of the

Preferences Dialog

1.2.6 Using NRV10 interFX with other Applications:

On Mac OS X, multiple applications can share the same driver, so you can run other

applications through the NRV10 Mixer alongside NRV10 interFX. On Windows XP, when

using ASIO (which is the driver that provides the best latency times, and the only driver

supported by NRV10 interFX), only one application may access the driver at a time. If

you wish to use ReWire client applications, such as Torq or Live with the NRV10 Mixer

and NRV10 interFX, you can upgrade to NRV10 interFX Pro. When you exit NRV10

interFX, a dialog provides upgrade instructions. NRV10 interFX Pro includes the

following enhancements:

•ReWire Player: Host ReWire applications such as Torq and Live directly in NRV10 interFX

Pro, with complete control over the output channel.

•Track Player: Play back playlists of audio files (Wav, MP3, AIF) through NRV10 interFX

Pro, with complete control over the output channel.

•6 User Effect Slots.

•Additional VST Plug-ins.

•Recorder: Record the master output of the NRV10 Mixer.

•Advanced MIDI Mapping of effect parameters, NRV10 interFX Pro channels, and Program

changes.

•Support for VST Instruments: Add VST Instruments to NRV10 interFX channels, and mix

them with the incoming audio signal.

2NRV10 interFX User Interface Overview

The channel configuration of NRV10 interFX is identical to the NRV10 Mixer, providing

four mono channels and two stereo channels. Each channel of NRV10 interFX includes

an integrated Gate, Compressor, and two User Effect Slots. Below is an image of the

NRV10 interFX user interface. Refer to the table below the graphic for details of each

control.

NRV10 interFX Controls

Control Call-out

Control Picture Control

Name

Control Description

1 Select ButtonTo load a Program, click the Selec

Button, and select the desired

Program from the resultant list.

2 Bypass

Button

The Bypass Button bypasses all

effects and gain settings of NRV10

interFX, allowing audio to pass

through NRV10 interFX

unchanged.

3 Program

Display

The Program Display displays the

name and Program Number of the

currently loaded Program.

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