Manuals
KLANG:app | menu – CONFIG Overview
The CONFIG menu is the most important menu for the system engineer and the sound/monitor engineer during setup of the system. It is the central place for setting up and controlling system-level parameters of the KLANG:app and the connected hardware.

Admin mode (hold CONFIG for 3 sec to switch modes). Click the link below to learn how to change/select user modes:CONNECT
Connect to devices on the network, rename mixes, assign icons and output EQs

The CONFIG > CONNECT screen in KLANG:app is your hub for discovering and managing all KLANG devices. Click the link below to read more.
CHANNELS
Label, color and define channels

The CONFIG > CHANNELS page lets you set up and customize all the individual audio input channels in your system. Click the link below to read more.
PRESET
Store and load shows and snapshot control

The CONFIG > PRESET menu is all about saving and loading show presets and snapshots. Click the link below to read more.
SYSTEM
IO settings, sampling rate and number of mixes

The CONFIG > SYSTEM section handles core system settings relating to audio I/O, clocking, and signal routing. Click the link below to read more.
ROUTING
Configure audio sources and receivers

CONFIG > ROUTING is one of the first menus you have to complete when installing gear in a new environment. Read more on how to route signals to and from your KLANG processor or :kontroller:
INFO
Advanced monitoring and expert configuration

The CONFIG > INFO screen provides insights on settings of your KLANG hardware, e.g. software and hardware version, serial number, device name and IP address. Click the link below to read more.
EXT CTRL
:app Skin, MIDI MCU, OSC Remote Control and DiGiCo Console Link
FAQ
App
What is a link-local or zeroconf IP address?
It’s an automatic IP address in the range 169.254.x.y/16, assigned when no DHCP server is available. Devices can still communicate with each other on the same subnet.
If your KLANG system can’t find a network with a DHCP server (the box that normally hands out IP addresses, e.g. a WiFi router), it will just give itself a number automatically so everything can still talk to each other. These self-assigned numbers always start with 169.254… and are called link-local addresses (sometimes also called “zeroconf”). It’s nothing to worry about — your devices will still connect and work together. For bigger setups, engineers might introduce a DHCP server or may switch to fixed IPs, but for a quick jam or smaller shows, link-local works fine out of the box.
Can KLANG:app listen to custom OSC messages on a different port than 9111?
Configure Custom OSC Receive Port in KLANG:app
Go to KLANG:app (5.6.7+ required) >CONFIG > INFO > Set Menu > Custom OSC Receive Port > and enter an additional port KLANG:app should listen on for incoming OSC messages, e.g. 9112.

What can I configure in the SET menu in KLANG:app?
The KLANG:app > CONFIG > INFO > Set Menu gives access to important configuration options for your local KLANG:app instance and the connected device, e.g. KLANG processor, another KLANG:app or a KLANG:kontroller.
Can I lock musicians to a particular mix on my processor?
Yes, that is possible. Go to KLANG:app > CONFIG > INFO > Set Menu > Musician Mix Lock
What are the minimum requirements for KLANG:app?
Find details here
What operating systems are supported for KLANG:app?
Follow this link for more infos about KLANG:app.
Officially supported operating systems for KLANG:app are Windows, Mac Os, Android, iOS.
Windows 7, 10 and 11 in both 32-bit and 64-bit are supported.
Mac OS X 10.13–13.x are supported.
iOS – latest two versions are tested and supported.
Android – there are various different versions, which cannot be all tested in combination with different hardware of tablets and smartphones.
OxygenOS (OnePlus) might not work properly, this is officially not supported.
Windows Phones are not supported.
How do I learn about all KLANG:app features?
The Tooltip feature helps you by making small tooltip icons appear next to buttons or elements. Click on these elements to get help on functionality. Follow this link for more details.
How many :apps can be connected to KLANG immersive processors?
Our products are designed and tested to be used with at least 1 :app or :kontroller per mix, plus 2 :apps for engineers. In most cases is is possible to use even more apps, there is no fixed limit.
Is there a way to search & sort the devices on my network?
Yes, KLANG:app can filter and sort discovered network devices. Follow this link for more details.
How do I back up all settings and collect log files from my KLANG system?
To back up all internal settings, presets, and log files from every KLANG device and connected KLANG:app instance:
1. Open KLANG:app
2. Go to CONFIG > INFO > Collect All Logs
3. Wait until the button turns green
4. Click Save Logs as ZIP
5. Send the ZIP file to KLANG support if needed
This creates a full backup and troubleshooting package for your entire system.
Can I hide unused Mixes?
Yes. Follow this link for more details.
Can I open and edit my KLANG show files offline without being connected to a processor?
Yes. KLANG:app has a built in offline editor. Follow this link for more details.
How do I protect mixes with a password?
It is now possible to enter a KOS Login Password. Users need to know this password to connect to the processor in Show or Admin mode. Follow this link for more details.
Can I rename my KLANG:app device?
Just as KLANG processors and :kontrollers, KLANG:app devices can now be identified by custom names. Follow this link for more details.
Can I protect channels from changes?
Yes, channels can be hidden in KLANG:app running musician or personal mode and on kontrollers and therefore be protected from changes. Follow this link for more details.
Can I change the panning laws?
With KOS 5.4 it became possible to change the stereo panning laws on 2nd Generation KLANG processors.
The panning law used before KOS 5.4 is KLANG1. Along with the auto mapping feature for the DiGiCo console integration, the panning types D1 and D2 are introduced, these are identical to the type 1 and type 2 panning laws on a DiGiCo. By creating a new KLANG show file from scratch (Load default/defaultOff) panning law D1 is used. Mixes created on a DiGiCo with panning law type 1 while therefore sound identical when imported to as a starting point to KLANG.
The STEREOK3 panning laws are pseudo binaural pannings with different head geometries. Use these panning laws when some signals need to remain in Stereo (e.g. because less coloration is required) and still get improved sound transparency.
Set Stereo Panning Law is stored in a KLANG show file and will be recalled when loading a show file. It affects all mixes.
Is there a way to preview my mixes on the :kontroller surface?
Yes, KLANG:app offers a simulation of the :kontroller interface. Follow this link for more details.
Can I change the mix of musicians using :app or :kontroller remotely?
Yes. Follow this link for more details.
How do I find out when a new KLANG:app version is available?
KLANG:app can now check for available :app updates. Follow this link for more details.
Can I customize :kontroller’s feature set for my production?
Many features of :kontroller can be activated and deactivated to offer the exact feature set required for the production. Follow this link for more details.
How do I change mixing parameters for many channels or mixes at the same time?
You can set values for specific parameters for channels in all mixes. Follow this link for more details.
Does KLANG:app work with different Aspect Ratios?
Yes. Button and text sizes have been optimized to yield the best user interface on different screen sizes while still showing all available control elements. Follow this link for more details.
Network bandwidth for KLANG:app
KLANG:app communicates OSC UDP network messages with the KLANG processor. Normal mixing operation including audio meters should stay below an average of 0.5 MBit/s.
How can I reorder Groups?
The order of groups can also be changed. Use the move up and move down icon to move a group and all its member channels one position up or down. Follow this link for more details.
CleanMyMac / Clean My Mac sometimes erroneously detects KLANG:app as BirdMiner malware
KLANG:app containers are tested before uploaded to the download section of this website. CleanMyMac sometimes erroneously detects KLANG:app as BirdMiner malware. We can assure that this is a false positive and our developers have reached out to the clean my mac developers to resolve this warning on their end.
There is no need for additional tools such as CleanMyMac and they are known to cause performance issue. Please ignore this warning.
Why do KLANG show files and log files have a time offset?
KLANG uses UTC timestamps throughout to support devices with multiple time zone settings simultaneously. This explains why you see a constant time offset.
See details here to determine the offset: https://en.wikipedia.org/wiki/Coordinated_Universal_Time
Do I need a WiFi router? Which kind is best?
You only need a WiFi router, if you want to connect KLANG:app on smartphones or tables, e.g. for personal mixing or for a monitor engineer when working on the stage. A hardwired ethernet connection is always the best choice for critical communication links, e.g. when running the DiGiCo console integration. We recommend to use a hardwired ethernet connect whenever possible, especially for laptops or computers with an ethernet port.
There are two different frequency bands for WiFi – 2.4 GHz and 5 GHz. We recommend to use dual band WiFi routers or Access Points. The 2.4 GHz band might get very busy or noisy when several mobile devices are around. The 5 GHz band tends to be the better choice. In many systems it is possible to define unique SSID to the 2.4 and 5 GHz bands, so it is easy to see on a mobile device on which band you are working on. Modern mesh routers are more intelligent and tend to provide the best performance in all situations.
Error Code 5 with webroot on Windows
This is a known issue with webroot.
Solution: get in touch with your system admin to disable webroot.
Why do I loose connection to the KLANG processor with a 10G network adaptor?
Newer Mac computers might ship with a fast 10G network adaptor. This adaptor sometimes runs into communication issues if the connected device (e.g. a network switch) does not support 10G. In that case a significated percentage (e.g. up to 50%) of the network traffic might be dropped, but it is hard to troubleshoot as it still works from time to time. This issue has not been addressed properly by the manufactured of these computers, yet.
Solution: Use a USB Gigabit network interface.
What is KLANG’s software update release and product support philosophy?
KLANG products are designed to be used for long periods of time and our philosophy will always be to try our best to offer support for as long as it is needed; however, this might become limited for various reasons, for example where we are depending on third party component suppliers, soft- and hardware developers etc. Our legacy products KLANG:fabrik (introduced in 2014), KLANG:vier and KLANG:quelle 19” are still receiving updates today, following this philosophy.
KLANG does not rely on rigidly fixed software update cycles (e.g. once or twice a year). Instead we aim to constantly maintain and improve the user experience, especially by releasing KLANG:app improvements to react to changes in smartphone or computer operating system updates as soon as possible.
How can I store and recall presets, show files or mixes?
Presets are by default stored inside the immersive processor hardware and can be recalled directly via KLANG:app. In order to backup presets or transfer them from one KLANG device to another, simply connect with KLANG:app go to the CONFIG > PRESET
page, select a preset from the dropdown and click TRANSFER.
Presets are interchangable between different immersive processors e.g. between KLANG:fabrik and KLANG:konductor.
How can I listen or CUE into mixes?
All KLANG immersive processors allow for CUEing into all available mixes. This is particularly helpful for monitor engineers that need to constantly switch between mixes. Details on the CUE functionality can be found here.
How can I learn more about mixing best practices?
Find information on immersive in-ear mixing tips here.
How do I change to Admin, Show, Personal or Musician user mode?
Select the right :app user mode: Learn more on how to optimize the feature set and GUI for your application as an engineer, system tech or musician.
Which DiGiCo consoles offer the KLANG console integration?
The KLANG console integration is available on the following DiGiCo consoles
- SD series
- Quantum series
Do I need a control computer for the DiGiCo console link?
It depends. Details can be found here: KLANG DiGiCo Console Link
1st generation KLANG processors :fabrik and :vier always require a computer running KLANG:app for the console integration.
2nd generation KLANG processors (:konductor, :vokal, DMI-KLANG) can run a standalone console integration (KOS 5.5 required).
If a cascade of KLANG processors is used, it also always requires a computer running KLANG:app for the console integration.
Is there a way to decrease :kontrollers’ display brightness or turn them off?
Yes, you can activate Dark mode/:kontroller blackout which turns all LEDs and Displays (except for the last one) off. This is particularly useful for theatres when the stage should be as dark as possible. With a push on any rotary button, the dark mode can be exited. [KKA-120]
In order to revert all :kontroller back to normal operation, use “Switch lights back on”. Follow this link for more details.
Do I need special headphones or in-ears to experience 3D sound?
No. KLANG incorporates binaural technology and processes the sound inside a KLANG processor to work with your own pair of standard stereo headphones or in-ears. In fact, it is not important if your headphones are open or closed, electrostatic, dynamic or use balanced armature drivers as most in-ears do. You can use universal fit in-ears or custom molded in-ears. Just make sure that the polarity is correct and the left and right signals go to the correct ears.
Is KLANG a Personal Monitoring System or is it a tool for Monitor Engineers?
Both.
The KLANG system is designed to be very easy to use especially if you don’t have years of experience in mixing monitors. The 3D in-ear mixing functionality enables musicians to get a very transparent and natural in-ear / headphone mix and a very short time.
At the same time, our products and especially KLANG:app offers all features experienced sound engineers or monitor engineers expect when working with a mixing tool for the live or studio market. Especially features like CUE mixing for musicians is a feature you want to use at mixing monitors constantly.
Why are all other groups turned down if I increase the volume of one group?
KLANG:app and KLANG:kontroller offer customizable DCA groups for an improved mixing workflow e.g. during a show. By default, the volume of all other groups is decreased when the volume of one group is increased. This helps to keep the sound pressure level approximately the same and prevent the mix to get louder.
However, if you want to deactivate relative DCA group mixing go to KLANG:app > FADERS (2nd page / group) and click on the relative group mixing icon:
In order to change the behavior for another KLANG:app or KLANG:kontroller remotely, go to CONFIG > INFO > Set Menu > Disable KLANG:app Relative Group Mixing. This requires to be your KLANG:app to be in Admin mode.
How many channels and groups can be adjusted on :kontroller?
:kontroller always supports all groups of a mix. The maximum number of groups per KLANG mix is 16. By pushing GROUPS on :kontroller the first 8 groups are shown and by pushing GROUPS for a second time the last 8 groups are shown.
:kontroller supports 3 banks of 8 channels each, so the first 8 channels of a KLANG mix are available. It is important to sort the most important channels that should be controlled to the first 24 in the KLANG mix. However, the groups can always control the channels 25+. It is also possible to hide channel from the kontroller, without the need to resort channels. Hidden channels are still audible in the mix but cannot be individually tweak. However, if the group is changed in level these hidden channels will follow. https://www.klang.com/manuals/app-faders/#reorder-groups
KLANG:app does not find any KLANG devices on the network
Follow this guide to troubleshoot the device discovery process.
What do the red or green icons above CONFIG stand for?
From left to right.
“C” stands for Clock
- green: clock sync is OK.
- red: there is a clock error
Change and monitor clock settings in CONFIG > ROUTING.
“N” stands for Network
- green: Connection and ping time to KLANG processor OK
- orange/yellow: some pings did not come through or the ping time is very long > Network problems or processor overload
- red: connection to KLANG processor lost or communication too slow > check network settings and processor.
Take a look at CONFIG > INFO more details.
“D” indicator (DiGiCo console is Init Master) /
“K” (KLANG is Init Master) indicator above CONFIG /
“T” (Throttling is active) network messages are currently slowed down as there is a lot going on.
- <No indicator>: Mixing Console Link Mode is set to OFF
- Blinking Green: Mixing Console Link Mode is set to Setup
- Static: Mixing Console Link Mode is set to Active
- Blinking Red: Link Mode is set to Active but NO Mix or NO Channel Mappings are set.
- RED: Console Link connection not working / lost connection
- YELLOW: Console Link connection issues, loosing connection
- GREEN: Console Link connection OK and working.
More info on the console integration
What does a yellow or orange “M” and red “S” in FADERS mean?
If any channel in a mix is on solo, a red icon with “S” for solo appears just above the FADERS menu icon.
If any channel in the mix is muted a yellow or orange icon with “M” appears.
How do I exchange presets between different processors?
Presets are interchangeable between all KLANG immersive processors.
If the presets contains less input channels or less mixes these settings will be added from the default file. In case the preset has more mixes or more input channels than the processor offers the first mixes and first channels will be loaded until the maximum is reached.
Revert to factory settings and delete all presets/settings
Learn more how to perform a factory reset for your KLANG product here.
How do I disable and enable the built-in demo mode feature?
It is possible to generally disable demo mode. This is particularly useful to prevent the demo mode button to appear in case KLANG:apps are disconnected from KLANG hardware network. Users might click the button accidentally and not notice that they are now mixing the built-in demo song instead of their own in-ear mix.
To disable, go to ADMIN mode and log in to a KLANG:fabrik/KLANG:vier mix or the built in demo mode. Then, navigate to CONFIG > INFO > Set (button) > Advanced > DON’T show demo mode. Fully restart KLANG:app. Now the demo mode will not be listed in the CONNECT screen anymore.
To enable again, go to ADMIN mode and navigate to CONFIG > CONNECT. Press and hold the refresh ICON (circular arrow at the bottom) for 4 seconds.
Which characters are allowed for Preset Names?
Preset names shall not include blank spaces or any special characters such as \“#@,;:<>*^|?\\/ etc.
Allowed characters are ‘a–z’, ‘A–Z’, ‘0–9’, ‘-‘, ‘.’, ‘_’
Can I remote control the system via MIDI or OSC?
Yes, that is possible.
KLANG:app, all KLANG processors and :kontroller exclusively communicate with each other via OpenSoundControl (OSC) messages. Find all details about the OSC messages in the OSC Reference Guide.
KLANG:app can further be controlled via MIDI / MCU.
There are also flexible third party converters from OSC to OSC or MIDI to OSC available, such as OSCulator. In this way, mixing console commands like snapshot recall or fader comnands can be converted. Additionally, tools like touchOSC can be used to design specific graphic interfaces if required.
Does KLANG:app support multi-touch?
On iOS and Android multi-touch is inherently supported. On Windows KLANG:app can be used with a multi-touch display, i.e. several faders and icons can be moved in parallel. However, on Mac OS X multi-touch displays are not supported as such. Hence, only a single fader or a single icon can be moved one after another.
– We are currently working on a solution for this and work around the barriers of Mac OS X –
Do I need an iPad, Tablet or Smartphone?
It depends. If you want to use the KLANG processor a personal monitoring system all musician should have access to their mixes.
This can either be done with KLANG:app on smartphone or tablets or with KLANG:kontroller. This works of course at the same time, it’s completely your choice.
Licensing Error on Amazon Tablet
The Digital Rights Management (DRM) is sometimes causing an issue on Amazon Tablets. The tablet need to be connected to the internet from time to time to renew this license. DRM might be deactivated in future KLANG:app releases for the Amazon AppStore. To workaround, please connect the tables to the internet at least once every month.
