Topics covered in this article:
- Associated software and configuration on Windows RMW (Dell 7920) using RME HDSPe and TCO Cards
- Associated software and configuration on Mac RMW using RME MADIFaceXT
- Configuring synchronization on MADI RMWs
MADI RMWs utilize addition software specific to the MADI I/O. Workstations will be supplied configured and tested by an authorized Dolby Atmos Mastering Suite reseller.
In most cases these don’t require user intervention. However, it is important to understand the configuration and learn which applications are used in normal operation and for troubleshooting.
Windows RMWs using RME HDSPe MADI and TCO cards
Drivers and Applications
The Dell 7920 will come with the proper RME drivers and firmware installed. Do not upgrade the drivers and firmware.
Two RME applications will be installed alongside the Dolby Atmos Renderer:
- Hammerfall DSP Settings Control Panel
- TotalMix FX
Both are accessible via the hidden icon symbol ^ on the right side of the Windows 10 taskbar as shown below.
Only the Hammerfall DSP Settings control panel needs to be accessed by the user to set the frame rate for the hardware and verify the proper sync settings per card.
The TotalMix FX application comes from the reseller with one tweak applied that resets outputs 1 and 2 to unity gain. The TotalMix FX application otherwise has no role and should only be used for troubleshooting. Making any gain, routing, or DSP adjustments will interfere with the proper function of the Dolby Atmos Renderer.
The RME TCO card accepts the clocking signal for the RMW and Dolby Atmos Renderer. Typically, this is Word Clock from a Master Clock (MC).
It is important that WC be distributed rather than daisy-chained between devices.
The RME TCO card also accepts the LTC input for synchronizing the Renderer with the DAW.
Mac RMWs using RME MADIface XT
A Mac-based MADI RMW will come with the necessary drivers and firmware installed, as well as the Fireface USB settings and TotalMix FX utilities. These utilities are not used in the regular operation of the RMW, though they must be configured in a specific way for operation.
The Fireface USB Settings should be configured as follows for a 48kHz workflow:
The only time you need to change these settings is when switching to a 96kHz workflow.
On the MADIface, LTC is configured to come in to the Mic 1 XLR input of the unit. In order to send that input to channel 129 of the Renderer, the following changes must be made in the RME TotalMix software (Note: an RMW purchased from a verified reseller should already have these changes made).
With TotalMix open, ensure that you are in the Matrix View (press x)
On the bottom row (Hardware Outputs) scroll to output 129/130. Click the wrench icon to reveal the channel settings
Click the Stereo button to split the channel into 2 mono channels
On channel 129, click the Loopback button to enable Loopback
In the top row (Hardware Inputs) route the output of Mic 1 to 129 by clicking the bottom of the channel (it may say AN 1/2) and selecting channel 129 from the drop-down list
Signal should now be routed from Hardware Input 1 to Hardware Output 129
It is important to ensure that you do not change any other parameters in TotalMix, as this can reroute signal and affect your workflow. Note that using the scroll wheel while in the application can often lead to inadvertent parameter changes.
Configuring Synchronization on MADI RMWs
On a Windows-based MADI RMW, synchronization is provided by a synchronization peripheral that generates LTC from the DAW. LTC is connected directly to the RME TCO Synchronization Card. In the Dolby Atmos Renderer, the External Sync Source set to ASIO.
On a Windows or Mac MADI RMW LTC is received using an audio channel. In the Dolby Atmos Renderer, the External Sync Source set is to LTC over audio, and the input channel is specified.
LTC is connected via the analog Mic/Line input of the MADIfaceXT and routed internally use the loopback feature of the RME TotalMix application. Alternatively, the LTC analog audio signal can be externally converted to MADI and use channel 64 of MADI input 2