Is Direct Stream DAC Handling of Audio Portion of Video Signal Introducing Sync Problems?


#1

Hi,
I’m considering the purchase of a Direct Stream DAC and would like to use it not only for music but also in connection with my TV. My question in this regard is: Does the audio processing / buffering introduce a lag that will make the sound not sync properly with the picture anymore?
Does anybody know what the amount of lag is in milliseconds?
Thanks,


#2

No, the processing doesn’t have a noticeable lag. Maybe Ted can jump in with numbers but I have never noticed any synch problems.


#3

I use a Apple TV 3 via optical to DS and notice the ever so slight lipsync issue from time to time but it’s not enough to worry about. I would estimate its between 5ms and 10ms. It could be the stream or the Apple TV contributing some or all of it. I think the DS is pretty quick…rest of chain from DS balanced to BHK pre balanced to M700.

The more significant contributor is probably the display and its processing latency.


#4

Most modern smart TV have an adjustable lip-sync delay setting in their setup menu. The optical out of my Samsung Q7 goes to the DAC and I didn’t have to adjust the lip-sync setting at all.


#5

I have my Sony TV plugged into the optical on my DAC. I have never noticed a lag during any type of material. Hope that helps…If I understand your question correctly…


#6

I have not noticed any lip sync issues with my LG OLED connected through the DSJr and I am typically pretty sensitive to them.