- Thread Starter
- #21
It seems the clocks of each device is working synchronously for AES/Coaxial/Toslink connection.I think "clocking issue" will occur for using 2 USB DAC, as both DACs are working asynchronously.
But for AES/coaxial/Toslink connection, I'm not sure.
In my design, AES source signal will be input to the RME ADI ADI 24 SE.
After DSP, AES output goes into DAC 1.
Coaxial/Toslink output goes into DAC 2, or XLR to subwoofer.
There should be only 1 clock working as master (I think).
I have asked ChatGPT for more information, wishing anyone here can justify it:
"I connect the aes output of Matrix Audio X-SPDIF3 to the AES input of RME ADI-2/4 Pro SE for digital signal processing.After DSP, the AES output of RME ADI-2/4 Pro SE is connected to DAC 1 and Coaxial/Toslink output to DAC 2 for audio.Is there clock sync issue between them ?Which device act as a mater clock ?"
GPT answers:
" In your setup, the RME ADI-2/4 Pro SE is the central device for signal processing and will likely act as the master clock for both downstream DACs. Here’s how the clocking works in your configuration:
Clock Sync Between Matrix Audio X-SPDIF3 and RME ADI-2/4 Pro SE:
The RME ADI-2/4 Pro SE is likely using the clock embedded in the AES signal from the X-SPDIF3 as its reference. Alternatively, you can configure the RME to use its internal clock and allow it to reclock the incoming AES signal for better jitter performance.
Clock Sync Between RME ADI-2/4 Pro SE and the DACs:
The AES output to DAC 1 and the Coaxial/Toslink output to DAC 2 will carry the audio signal along with the clock derived from the RME ADI-2/4 Pro SE. Both DACs will sync to the clock in the incoming signal.
Potential Issues:
Clock Mismatch: If the DACs are unable to lock to the clock in their respective input signals, you might experience clicks, pops, or distortions. This is rare with high-quality DACs.
Jitter: Each additional step in the signal chain can introduce jitter, which could potentially degrade audio quality. However, modern equipment like the RME ADI-2/4 Pro SE and high-end DACs usually handle this well.
Recommendations:
Master Clock Configuration: Let the RME ADI-2/4 Pro SE serve as the master clock by using its internal clock as the reference. This ensures that all downstream signals are based on a single, stable clock.
Sync Settings: Check the sync settings on all devices to ensure they are configured to accept an external clock (in the case of the DACs) or to use the internal clock (for the RME ADI-2/4 Pro SE, if preferred)."
All sync to the RME's SteadyClock FS
SteadyClock FS - excellent performance in all clock modes - RME Audio Interfaces | Format Converters | Preamps | Network Audio & MADI Solutions
RME Audio Professional Live, Studio, Recording and Broadcast Solutions. Unrivalled Quality, Performance & Stability MADI Interfaces, Converters & Preamps.
What need to concern is only the phase adujustment of the subwoofer as an ordinary .1/.2 setup.
Hope I am correct.