Duo Audio guide
Installation
Install the complete Digital67 audio system: the Duo Audio Engine, Digital67 App Audio driver and Stream Deck Bridge.
Preparation
Before you start
What you need
- A supported Windows computer
- Elgato Stream Deck (15-key)
- Elgato Stream Deck XL (32-key)
- Elgato Stream Deck + XL, model 10GBX9901
- Stream Deck software 6.9 or later
- Administrator access for the signed audio-driver installation
Installation order
- Install the signed Digital67 package
- Restart Windows if requested
- Configure microphones, application and physical outputs
- Install the Digital67 Bridge from Elgato Marketplace
- Route applications to Digital67 App Audio
- Verify the Engine and Stream Deck connection
Part one
Install the Digital67 software
The Digital67 installer supplies the Duo Audio Engine and required App Audio virtual driver from one trusted package.
Download the signed installer
Download Duo Audio only from the official Digital67 product or support page. The release link will be activated after certification.
Verify the publisher
When Windows displays the security prompt, confirm that the signed publisher is Marketing Co-Ordination Australia Pty Ltd before continuing.
Install the Engine and driver
Follow the installer prompts to install the Duo Audio Engine and Digital67 App Audio routing driver. Administrator approval is required for the driver.
Restart if requested
Restart Windows if the installer asks you to so the virtual audio device and services initialise correctly.
Installer preview
Install, then choose your devices.
Ready to install
Choose Install to continue.
Updating an existing installation
If Setup reports Digital67 applications using files, allow it to close those applications before continuing. Finish any recording first.
On the completion screen, leave Configure Digital67 Duo Audio devices selected. Choose your sources and physical outputs, test them, and save the configuration.
Device setup & taskbar accessPart two
Install the Stream Deck Bridge
Open Elgato Marketplace
Use the official link on the Duo Audio product page to open the Digital67 Bridge listing.
Install the Bridge
Complete the Marketplace installation and allow the Stream Deck application to load the Digital67 actions.
Apply the supplied layout
Load the layout supplied with your Duo Audio edition and choose the layout for your Stream Deck + XL, 15-key Stream Deck or 32-key Stream Deck XL. See the layout guide.
Part three
Route applications into Duo Audio
Open Windows Volume Mixer
Open Windows sound settings and select the per-application Volume Mixer.
Select Digital67 App Audio
For each application you want Duo Audio to control, choose Digital67 App Audio as its output device.
Select your physical outputs
In Duo Audio device configuration, select and test the speakers and headphones, then choose Save and Restart Engine. Selecting an application here does not replace routing its audio to Digital67 App Audio in Windows.
Part four
Verify the system
Start the Engine
Open Duo Audio and confirm that the Digital67 App Audio driver and selected physical outputs are available.
Check the Bridge
Confirm that the Duo Engine tile reaches ONLINE. STARTING indicates startup is in progress; OFFLINE means the Bridge is not connected to the Engine.
Play a test source
Play audio from a routed application, adjust its Stream Deck control and confirm the level and selected outputs respond.
Check update status
Confirm the Engine reports its installed version and update state. Initial releases will open the official download page rather than installing updates silently.