elected-Amp-and-Cab

Create Digitech GNX4 Presets with MFX Supermodels

In this post, we’ll learn how to create Digitech GNX4 presets with MFX Supermodels. The MFX Supermodels are a software collection of amplifiers and speaker cabinets that were developed by a third party for the GNX4. Unfortunately, the supermodels are no longer commercially available, but sometimes you can find the CD-ROM for sale on e-Bay or Reverb. Using the Digitech X-Edit software, it’s easy to create your own presets with the MFX Supermodels. Before we begin, X-Edit only works in the Windows operating system, so Mac users will not be able to use X-Edit natively within MacOS. So let’s jump in and learn how to create Digitech GNX4 Presets with MFX Supermodels.

02 November 2020 – Written by Michael R. Myers #mykmyrs

Tags: #GNX4 #Digitech #X-Edit #MFXSupermodels #guitar #preset

Skill Level: Intermediate

If you don’t have the MFX Supermodels available , but you’d still like to learn how to modify the stock GNX4 presets, have a look at my post Edit Digitech GNX4 Presets with X-Edit.

What You’ll Need to Get Started

  • The MFX Supermodels disc
  • Microsoft Windows. Windows 7, 8 and 10 work correctly.
  • Digitech GNX4 unit with a USB cable connected to your Windows computer
  • Digitech’s GNX4 drivers (v2.1) from the GNX4 product page
  • Digitech’s X-Edit software (v2.4.1) from the GNX4 product page

Create Digitech GNX4 Presets with MFX Supermodels

  1. Download and install the GNX4 USB drivers for Windows
  2. Download and install X-Edit. Remember, X-Edit only works on Windows
  3. It may be helpful for you to copy the entire MFX Supermodels disc to your local hard drive, or a USB drive. This is not a requirement, it’s just faster for some folks to not have to locate and load their cd-rom tray every time they want to access the files
  4. Make sure the GNX4 is connected by USB and power it on
  5. Open X-edit to begin editing. On the left-hand side, X-Edit lists the GNX4 preset banks. There is User, Factory and Memory Card, if you have a card inserted into your GNX4.XEdit-Main-Screen
  6. Expand the node of the bank you’d like to edit. Typically, you would edit the User or Memory Card banks to preserve your factory presets.
  7. Double click a preset name to load it into the window. I selected the first User bank preset “Hybrid” as an example.
  8. Now let’s see what the MFX Supermodels can do for us. Click File>Load Custom GeNetix Model>Amp & Cabinet>Channel 1. You’ll be asked to locate the *.ACM file that contains the information we need to load. I selected the Engl Savage 120 as an example. Click Open to continue.Select-Amp-and-Cab
  9. Your X-Edit screen will update the Channel 1 section (dark green colored) and show you the amp and cabinet you just selected.elected-Amp-and-Cab
  10. Change what you’d like to tweak your preset’s sound in the Channel 1 sections. Your changes are not saved until you manually save them.
  11. If you want to add a different amp and cabinet to Channel 2, repeat the process. Or maybe you want the same amp and cabinet on Channel 2, but using different stomps and effects. You have many options here, so don’t be afraid to get in there and tweak PER CHANNEL. And don’t forget about the Warp channel as well.
  12. To save your changes, click the Device Menu, then Store Preset. You’ll get this dialog window. Make sure the bank is correct, the number position of the preset in the bank is correct, and give it a new name, if desired. Click Store and the edited preset is now on your GNX4 or your memory card. XEdit-Store-Preset

Summary

We’ve covered how to create Digitech GNX4 Presets with MFX Supermodels in this brief tutorial. Presets are a good starting point that allow for your own customizations and to easily recall a specific sound quickly. Experiment with the User or Memory Card preset banks to see what you can come up with, or import the presets others have already made. Either way, you have a world of options available to make those presets sound perfect for you.

If you would like to add to this content to help other folks, please contact me and let me know what you have in mind.

XEdit-Main-Screen

Edit Digitech GNX4 Presets with X-Edit

In this post, we’ll learn how to edit Digitech GNX4 Presets with X-Edit. If you’ve ever wanted to change the factory presets, or add presets created by other people, the Digitech X-Edit software allows for easy designing, modification and exporting of presets. In addition, X-Edit allows you to make file backups of your GNX4’s preset banks so that you have a copy in the event of the unit’s failure. Before we begin, X-Edit only works in the Windows operating system, so Mac users will not be able to use X-Edit natively within MacOS. So let’s jump in and learn how to Edit Digitech GNX4 Presets with X-Edit.

30 October 2020 – Written by Michael R. Myers #mykmyrs

Tags: #GNX4 #Digitech #X-Edit #MFXSupermodels #guitar #preset

Skill Level: Intermediate

What You’ll Need to Get Started

  • Microsoft Windows. Windows 7, 8 and 10 work correctly.
  • Digitech GNX4 unit with a USB cable connected to your Windows computer
  • Digitech’s GNX4 drivers (v2.1) from the GNX4 product page
  • Digitech’s X-Edit software (v2.4.1) from the GNX4 product page
  • Optional – an already created preset, with a file extension of *.G4P. You can find presets with an internet search.

Steps to Edit Digitech GNX4 Presets with X-Edit

  1. Download and install the GNX4 USB drivers for Windows
  2. Download and install X-Edit. Remember, X-Edit only works on Windows
  3. Make sure the GNX4 is connected by USB and power it on
  4. Open X-edit to begin editing. On the left-hand side, X-Edit lists the GNX4 preset banks. There is User, Factory and Memory Card, if you have a card inserted into your GNX4.XEdit-Main-Screen
  5. Expand the node of the bank you’d like to edit. Typically, you would edit the User or Memory Card banks to preserve your factory presets. Double click a preset name to load it into the window.
  6. Change what you’d like to tweak your preset’s sound. You can edit Channel 1 (on the left side of the screen), Channel 2 (right side of screen) and also use the graph in the center to alter the yellow mode’s warp of the amp sound. The buttons to the left of the preset name also allow for more items to be customized, so be sure to check those out as well. Your changes are not saved until you manually save them.
  7. To save your changes, click the Device Menu, then Store Preset. You’ll get this dialog window. Make sure the bank is correct, the number position of the preset in the bank is correct, and give it a new name, if desired. Click Store and the edited preset is now on your GNX4 or your memory card. XEdit-Store-Preset

Steps to Import Digitech GNX4 Presets with X-Edit

  1. Similar to the steps above for editing a preset, perform steps 1 though 4
  2. Click the File menu, then Open Preset
  3. Navigate to the location on your computer that contains an existing preset. The file will have a *.G4P extension
  4. X-Edit will load the preset file and you can repeat steps 6 and 7 above to modify and store your preset on your GNX4

Summary

We’ve covered how to edit Digitech GNX4 presets with X-Edit in this brief tutorial. Presets are a good starting point that allow for your own customizations and to easily recall a specific sound quickly. Experiment with the User or Memory Card preset banks to see what you can come up with, or import the presets others have already made. Either way, you have a world of options available to make those presets sound perfect for you.

If you would like to add to this content to help other folks, please contact me and let me know what you have in mind.

Linux-ReAmp-Launched

Install Audio Assault ReAmp in Linux

This post will show you how to get Audio Assault ReAmp Studio up and running on a Linux installation. I’ll be showing the details on a Debian 10 distro of Linux. If you are more familiar with Windows or Mac, the Linux installation is a bit more manual than you’d expect, but the end result is a great guitar software studio that works as a VST plugin and also has a stand-alone application. Let’s continue to install Audio Assault ReAmp in Linux.

Note: at the time of writing, ReAmp has not been released to the general public, so only those folks who were prior customers or members of the Audio Assault mailing list had access to purchase ReAmp Studio before it’s available to the general public.

14 October 2020 – Written by Michael R. Myers #mykmyrs

Tags: #mykmyrs #audioassault #reamp #linux #guitarstudio #guitar #amp #ampsim #cab #speakercab #impulseresponse #irs

Skill Level: Advanced

What You’ll Need to Get Started

  • A Linux distro installed on your computer. I’m using Debian 10 in this tutorial.
  • A USB audio interface for electric guitars. I’m using my Digitech GNX4 Guitar Workstation.
  • For recording, you’ll need a DAW like Tracktion Waveform 11 (pro or free) or Reaper. There are many choices and personal preferences will determine the “best DAW” for you.
  • A downloaded copy of the ReAmp Studio software. Audio Assault packages the Linux, Mac and Windows releases into one zip file typically.

Some Notes Before We Begin

My Digitech GNX4 is still supported as USB audio interface, fifteen years after my purchase. It works in Linux. It works in Mac. It works in iOS. It works in Windows 10. It JUST WORKS.

You will need to set permissions to files and folders manually in Linux. You’ll also need to create launchers manually if you want a shortcut on your desktop to the ReAmp studio. I’ll cover these steps in the instructions, it’s just a fair warning that things will get manual at some point in this tutorial.

Install Audio Assault ReAmp in Linux

  1. Before starting, you may want to update your system’s software using the Update Manager to ensure you have the latest and greatest fixes. In terminal, you can run “sudo apt-get update” and then “sudo apt-get upgrade” to bring your system up to date.
  2. Extract the ReAmp zip file to a folder on the computer. I typically extract it to Downloads.
  3. Open the extracted folder and you’ll see something similar to this image. The Linux install files are in their own folder.Linux-install-file-contents
  4. Open the ReAmp Studio Linux folder. Inside, you will find the components you’ll be working with. In addition, the Audio Assault developers included a text file with Linux installation instructions for your reference. They indicate that there may be an installer made in the future that would make the steps that follow obsolete, so be sure to keep an eye out for that installer in future releases.
  5. We’ll install the ReAmp Studio VST component first. Following the vendor’s installation instructions, we’ll put the “ReAmp Studio VST.so” file into a folder called “.vst”. I put this “.vst” folder in my Home folder.Linux-VST-Folder-Location
  6. Inside the .vst folder, you can see the file is there now and also several other VSTs I have installed. When you run your DAW and want to use this new VST component, you’ll have to re-scan your VST folders and possibly add this folder to the folders your DAW searches to locate VST files.Linux-VST-file-in-folder.
  7. Now let’s install the ReAmp Studio stand-alone application. We’ll also make a launcher so that there is a shortcut on the desktop to access it easily in the future.
  8. We’re going to install the stand-alone in the /opt folder that is a sub-folder of your filesystem drive. Locate the “opt” folder and open it.inux-OPT-folder-location
  9. I made a folder named “Audio Assault” in my /opt folder to make it easier to locate and maintain Audio Assault components.Linux-AA-folder-in-OPT-folder
  10. Open the new “Audio Assault” folder and perform the following actions. Copy the “ReAmp Studio Standalone” file and the “ReAmp Studio Data” folder from the install folder. inux-AA-Folder-Contents
  11. We need to start with changing file permissions so that Linux allows us to read and write as necessary. First, let’s give the ReAmp Studio Standalone” file permission to execute. Right-click on the file in the “/opt/Audio Assault/” location and choose Properties, then permissions. Tick the checkbox “Allow executing file as program”.inux-standalone-execute
  12. Now we need to give permissions to the supporting “ReAmp Studio Data” folder that contains the amps and cabinets and presets within ReAmp studio. You’ll need to run the Terminal application and use the chmod command to assign read and write access privileges to this folder and its sub-folders. Notice that you need to use backslashes when there is a space in the folder name, and forward slashes to separate directory names.
  13. In terminal, run the following commands to set read and write permissions for ReAmp Studio to function properly: chmod -R 777 /opt/Audio\ Assault/ReAmp\ Studio\ Data and sudo chmod -R 777 /opt/Audio\ Assault.inux-CHMOD-for-data-folder
  14. Finally, let’s create a launcher on the desktop so we can try out the stand-alone and verify the permissions are correct for it to run and make audio. Right-click on the Linux desktop and click “Create a new launcher here…”. The Launcher Properties window will show.
  15. Enter a name for your launcher, and click the browse button and go to /opt/Audio Assault and choose the stand-alone file “ReAmp Studio Standalone”. Ensure you click the “Launch in Terminal” checkbox. Click OK and your launcher will now be on your desktop.Linux-launcher-creation
  16. Double-click the the launcher to test out your stand-alone version of ReAmp Studio. You may get a message about JACK server not being started, but just ignore that. The ReAmp Studio screen wll appear momentarily.
  17. You may have to enter your e-mail that you used when purchasing to unlock ReAmp studio. After unlocking, you should see the main window.Linux-ReAmp-Launched
  18. You’ll know that your file permissions are set correctly because you will get a file named “settings.px” in the “/opt/Audio Assault/Reamp Studio Data” folder. If this file does not exist, you will not be able to read or write presets, and you will be continually asked to provide your e-mail address when Reamp Studio starts.Linux-Settings-file
  19. If you’re using a DAW, remember to scan for the VST in the /.vst folder so that it’s available to you for recording and playback.

Summary

ReAmp Studio is a great way to find a unique and varied guitar tone with its offerings of amplifiers, cabinets and the ability to use custom impulse responses. Offering it to Linux, Mac and Windows allows users to have the ability to use the software in a mixed environment capacity, and many guitarists will appreciate that capability when they have to play or record in more than one operating system. I hope you were able to follow well and you were able to install Audio Assault ReAmp in Linux.

Other Linux Tutorials I’ve Written

Configure Guitarix in Linux Mint 20 to Create Your Guitar Tone

Configure Guitarix in Linux Mint 20 to Create Your Guitar Tone

If you’ve ever wanted to figure out how to use Linux to help you get your electric guitar into a virtual amp on your computer, along with your favorite virtual effects, then this starter-level/intro post is for you. Until I wrote this post, I struggled to actually figure out how to configure Guitarix in stand-alone mode in Linux. There are limited videos on YouTube, and the web posts I found were either too vague or didn’t address some of the errors I was receiving. This post was born from the steps I took, and maybe they’ll help you to get Guitarix up and running on your Linux box.

20 August 2020 – Written by Michael R. Myers #mykmyrs

Skill Level: Advanced

What We’re Doing Here…

By using FOSS, we are using the Linux computer as an amplifier for an electric guitar. The application Guitarix has an assortment of effects, tubes and allows you to create a guitar tone. This tone can be used for practice, jamming with a backing track or for recording.

If you’re coming from the Mac or Windows world, you’re probably already familiar with the virtual amps and effects that can be used in those environments. Guitarix is very similar to paid audio software, but it’s completely free for the Linux crowd.

The big difference between Mac or Windows and Linux is that Linux requires some small configurations and the use of a few applications to assist in mapping the input and output audio. It really seems more complicated than it needs to be, but maybe my own inexperience is talking on this point. Once I got Guitarix to actually output my guitar’s signal, I was quite happy to say the least.

What You’ll Need to Get Started

Some Notes Before We Begin

While I will show you how to configure Guitarix in Linux Mint, I would bet a lot of money that I have missed many, many functional and rational points, due mostly to my inexperience and unfamiliarity with Linux tools . This was my first time getting these components into a working order, and I’m sure there are far more capable folks than I that can set this up better/faster/cooler.

It may be my inexperience with Linux and its tools, but it seems like I have to re-wire the inputs and outputs with Catia every time I open up Guitarix. Maybe someone more seasoned can let me know what I am missing so that I don’t have to reconfigure every time I want to play.

Are there presets available for Guitarix? I’d like to see what it’s really capable of for metal guitar, and presets are always a great starting point. If you know of any, please let us all know in the comments for this post.

I tried to use an iRig HD 2 USB audio interface, but Mint would not recognize it a hardware device. I also tried an original iRig HD USB device, which was also not recognized.

My Digitech GNX4 is still supported as USB audio interface, fifteen years after my purchase. It works in Linux. It works in Mac. It works in iOS. It works in Windows 10. It JUST WORKS.

I configured my audio interface to output a dry signal only since it is a multi-effects unit and I wanted the guitar tone without any effects. For the GNX4, here are the steps.

Steps to Configure Guitarix in Linux

  1. Before starting, you may want to update your system’s software using the Update Manager to ensure you have the latest and greatest fixes.
  2. Make sure you have your USB audio interface connected to the computer and powered on, if necessary.
  3. Open the Software Manager and search for “qjackctl”. If you don’t have it installed already, go ahead and install it.
  4. From within Software Manager, search for “guitarix” and install it.
  5. To assist with visual input and output mappings, visit KXStudio and download and install Cadence and Catia.
  6. While I didn’t have to add myself to the “audio” group on my machine to get my Guitarix working like many internet posts suggested, I added it just in case. From the Mint menu, choose Administration>Users and Groups. The screen for my user showed that I was not in the “audio” group.150
  7. Click the “Add” button and place a check mark beside the “audio” group. When you return to the Users and Groups window, you will see the new group added to your user groups.Mint-Users_Main_Window_Group_Added
  8. Now, let’s take care of getting QJackCtl configured so that we can process our audio input and output properly.
  9. From the Mint menu, choose Sound and Video>QJackCtl. After loading, you’ll be presented with this screen. Using this application, we will configure how JACK handles audio input and audio output for the entire system. I think of this to be like a mixing desk for the entire system where audio can be routed as needed.Mint-QJackCtl_Main_Window
  10. Click the Setup button. From the first tab, Parameters, we’ll configure our input audio source. The source will typically be your USB or Firewire audio interface. Do not try to use a computer soundcard here because the latency is too great and it will not work properly.
  11. I’ve named my Preset “GNX4” and saved it so that I can recall it in the future. Set the Driver to “ALSA”. Check to enable the “Realtime” option. Set your Interface to your audio interface in the list. Set your Sample Rate to as high as your interface can go, typically 44100 or higher. Set your Frames to a value that provides the lowest audio latency as possible. The higher the number, the longer the latency. Click the Advanced tab to continue.Mint-QJackCtl_Setup_Page_1
  12. On the Advanced tab, I selected Monitor, set my Output Device as my computer’s soundcard/speakers and set my Channels to 2 IN and 2 OUT. Press OK to save your settings.Mint-QJackCtl_Setup_Page_2
  13. JACK will start and you will leave it running.
  14. Let’s configure Guitarix in Linux so that we can select a preset and wire its audio to our JACK instance so that we can hear our guitar. Click on the Mint menu and choose Sound and Video>guitarix.
  15. When Guitarix loads, your screen should look similar to this one. We can now wire up JACK and Guitarix using the Catia application.Mint-Guitarix_Main_Window
  16. Click the Linux menu and choose Sound and Video>Catia. You’ll see a graphic similar to the one shown here. Using Catia allows for the visual connection of of audio inputs and outputs and can speed up the creation of the wirings.Mint-Catia_Main_Window
  17. Before continuing, we are going to make several steps to wire the system capture to the gx_head_amp. Then we’ll go from the gx_head_amp to the gx_head_fx. Finally, we’ll go from the gx_head_fx to the system playback. After these connections, we will have our guitar playing sound in Guitarix.
  18. Start wiring by clicking on “capture_1” in the system object. Hold the mouse and drag it to the gx_head_amp’s “in_0” and drop the wire by releasing the mouse. Repeat or “capture_2”.Mint-Catia_system_to_head
  19. Now, let’s wire the amp head to the amp effects. This time there is only one wire to connect.Mint-Catia_head_to_fx
  20. Next, connect the gx_head_fx object to the system playback. Here you’ll wire the “out_0” to the “playback_1”, and “out_1” to the “playback_2”.Mint-Catia_fx_to_system
  21. When complete, your wiring should look like this image.Mint-Catia_Main_Window_complete
  22. If you’ve done things correctly, you should hear your guitar’s output through your computer monitors.
  23. Return to Guitarix and test out some of the included presets to start working with the components to make a guitar tone that’s your own.

Summary

Now that we learned to configure Guitarix in Linux, you should have Guitarix running in stand-along mode, you may want to look into how configure JACK and Guitarix to play along with a backing track for jamming/practicing. There are some videos on YouTube that may be helpful for this kind of configuration. I personally am moving on to try to figure out how to capture Guitarix’s output in my DAW so I can record tracks in Linux. I hope you learned something here today, and if you have any suggestions, please leave them in the comments below.

Use a Digitech GNX4 as an Audio Interface in iOS

In this post, we’ll learn how to use a Digitech GNX4 as an audio interface in iOS. The GNX4 will work as an interface in iOS and iPadOS with just about any audio application using the official Apple USB adapter and a USB cable. The best part of the GNX4 being supported is that there is no need for drivers. You read that correctly. The GNX4 is a compliant device and is supported with plug and play by your iOS devices. Let’s get started!

10 June 2020 – Written by Michael R. Myers #mykmyrs

Skill Level: Beginner

Recently on the Facebook Digitech GNX4 group, a member asked how he could use his GNX4 as an audio interface for recording with an iOS device. In all the time I’ve used a 2011 iMac with my GNX4, which supports the GNX4 without any drivers, I hadn’t considered trying to hook my GNX4 directly into an iOS device as an interface to record. His question prompted me to give it a try on my iPad Air 2 and I can tell you that the GNX4 is supported as an audio interface in iOS.

Before you continue, you must have an official adapter from Apple to use as the connection interface between the GNX4 and a lightning iOS device. This adapter, which costs around $40 USD currently, provides a USB port and an additional lighting port. The additional lightning port allows for powering the iOS device while a USB device is also connected. Do yourself a favor and buy the official adapter because the cheap ones on Amazon and EBay often are not recognized by the iOS device, and if they are, can fail to transmit audio.

Configure Your GNX4’s USB Output Source

You may need to make a configuration parameter change on your GNX4, depending on what you’re going to record in your iOS application. Are you intending to record the actual audio output from your GNX4 patch, meaning the guitar signal, amp, cabinet and all effects? Or are you intending to send a dry guitar signal to the iOS app and use virtual amps, cabinets and effects within the application? You need to make sure you have a clear understanding of “what” you would like to record, otherwise sending a full-effects signal from the GNX4 into iOS may end up being sent through iOS amps and effects.

To change your GNX4 USB audio settings, see my previous post here. For the steps that I list below, I wanted to send the dry guitar signal from the GNX4 to an iOS guitar application to make use of the app’s amp, cabinet and effects. To do the dry signal, I configured USB 1-2 to be “DRYGUITAR” on the GNX4’s configuration settings.

What You’ll Need to Get Started

  • Digitech GNX4 unit with a USB cable
  • Apple iPhone or iPad with Lightning connector and built-in headphone jack
  • Apple iOS version 13 (not tested on any other versions, but may work)
  • Official Apple Lightning to USB 3 Camera Adapter
  • headphones or stereo audio cable to plug into headphone jack
  • IOS guitar application, such as GarageBand – available free in the AppStore

Steps to Connect Your GNX4 to an iOS Device

  1. Connect your USB cable from your GNX4 into the lightning adapter’s USB port.
  2. Connect a lightning cable into the adapter for a constant power source.
  3. Connect the lightning adapter into the iOS device.
  4. Plug your headphones or stereo line out cable into the iOS device
  5. Power on your GNX4.
  6. Open your iOS guitar application. Set its input channel to 1 for the guitar input. Each application’s settings’ options will vary.
  7. Play your guitar and you should immediately see the input and output volume meters show signal. In addition, you should be able to hear the audio playing in the headphones.

Where To Go From Here

After I had signal in the iOS GarageBand application, I used a stereo headphone cable to send the headphone jack to my computer’s digital audio workstation (DAW) to record the iOS application’s audio output. This type of setup could be useful if you need an array of different amps for recording and you’d like to focus your work on the iOS device.

Summary

I didn’t expect the GNX4 to work as an audio interface to iOS devices due to its sheer age. I was pleasantly surprised that it worked with only a small parameter change for the USB audio and an adapter I already owned for my iOS devices. If you haven’t explored iOS applications for guitars, here’s an opportunity for you to give it a shot for a relatively small adapter expenditure. Good luck and make some great sounds!

If you would like to add to this content to help other folks, please contact me and let me know what you have in mind.