Page tree
Skip to end of metadata
Go to start of metadata



The status section will inform you of the current state of your network and device state, such as streams status, sampling rate and PTP clocking.
The section also provides device connectivity tools and error messages reports. Refer to the UNITE or RAV/AES67 mode for more details.

  • Driver
    Current ASIO driver sampling rate.  It may differ from the sample rate set in your DAW or your device.
  • State 
    Should be "Running".  If "no ASIO Host connected" is displayed, please refer to the Merging Audio Device Troubleshooting page.
  • Clock 
    Shows the current ASIO PTP Master Clock device IP - Sampling Rate -  PTP Domain - Network Latency
  • Solution
    Tips on how to solve the reported error


The devices discovered on your RAVENNA/AES67 network are displayed in this section.

  • To access Merging devices web apps, advanced pages or firmware update, right click on the device icon.


  • Primary adapter
    Lists all available network ports.  Select the network adapter your Merging RAVENNA/AES67 device is connected to.
  • Secondary adapter
    Allows ST2022-7 running mode (redundancy). 
    This feature requires a 2022-7 license.  Without this license, the setting is unavailable.
  • Latency 
    Select the Frame mode in use ; AES67 based on 6/12/48 samples (default) or RAVENNA based on 16/32/64 samples.
    Your devices all have to be on the same frame mode multiples.
    Note: Latency setting is only available in RAV/AES67 mode


Expand the Advanced Settings from the bottom of the MAD Panel

Channel Settings

  • Inputs and Outputs
    The maximum number of Inputs and Outputs available are 128 @1Fs, 64  @2Fs, 32 @4Fs and 16 @8Fs
  • Bridge Channels 
    Dedicated Internal MAD channels, that allows routing between applications.
    Details on how to configure and use the bridge channels available in the MAD Use cases.

    :  All ASIO channels will use some bandwidth and CPU processing even if not connected to RAVENNA/AES67 devices.
    Don't set it to 128 if you only need 8 !
  • List Bridge Channels Before I/O's
    When enabled it changes the published IO channel Layout, puttin the Bridge channels before the IO channels.
    Some application are restrictive in their IO layout and do not allow conventional IO routing. Typically the Dolby Atmos Renderer will require that you enable this List Bridge Channel option.

ASIO Settings

  • Master ASIO Host 
    Allows to set a Master application, that will act as a Master sampling rate device. 
    This list is dynamically populated, the first time you start an application set to use the Merging Audio device, it will be added to the list.
    When a Master ASIO host is set, other applications cannot change the sampling rate.
    Default : any application can change the sampling rate any time. 
    Merging Audio Device : the sampling rate is set from the panel Sample Rate setting.  ASIO applications cannot change the sampling rate.
    Please note that DSD Sampling rates cannot be set in that mode.
    Application : Only the application set as Master ASIO Host can modify the sampling rate.  
    Important notes on ASIO Host and Sample rate :
    Some applications may not support sampling rate change while running, refer to the manufacturer for details.
    Changing the sampling while recording / playing back will obviously create drops, do not change the sampling rate during crucial real-time operations.
    For further details on sample rate configurations, please see this page.
    Windows WDM cannot be set as Master ASIO Host.
  • Sample rate
    Allows to set the sampling rate, if the Master ASIO Host is set to Merging Audio Device, or if the Master ASIO Host set is not started.
  • Buffer size 
    In 48 (AES67) Framing mode, buffer sizes available are 768 - 384 - 192 (default) - 96 - 48 samples (based on 1Fs 44.1/48 kHz)
    In 64 (RAVENNA) Framing mode, buffer sizes available are 1024 - 512 - 256 - 128 - 64 samples (based on 1Fs 44.1/48 kHz)
    A buffer size of 192 (AES67) or 256 (RAVENNA) samples is recommended, usually stable value for all available sampling rates.
  • Mix safe mode
    Mixes the different ASIO nodes with an extra processing buffer.
    Disabling Mix safe mode will reduce the ASIO latency when one application is using the Merging Audio device.
    The counterpart is that you may also get a drop / glitch, especially when you start and run several applications using MAD.

WDM Settings

  • WDM
    Enable / disable MAD as a Windows sound device. Typically useful to those wishing to monitor system sound such as YouTube, Spotify, Playback system audio file...
  • AUX
    Provides a secondary WDM device and set of channels
  • Inputs / Outputs
    Sets the number of inputs / outputs in the MAD Windows sound device (2-4-6-8)
  • Inputs / Outputs Map
    Map the WDM channels into the MAD channels.
    Details on how to configure and use the WDM bridge available in the MAD Use cases.

Additional features

  • Displays the installed Merging Audio Device Version

  • Opens the Merging Audio Device online documentation (internet connection required).

  • Restarts the ASIO driver. 
    WARNING : Restarting the ASIO server will completely stop any audio, and some DAW may crash. Only use in case of issues !