More > JRiver Media Center 31 for Windows
Pauses in Audio and Video
htnut:
--- Quote from: SimplySound on December 14, 2023, 04:24:15 pm ---One other question for you HTNut, I assume your interface is via HDMI exclusively (not S/PDIF)? HDMI carries both Audio and Video signal and is responsible for maintaining the synch. It would make sense that when you have an audio drop you have a video stutter.
--- End quote ---
Yes HDMI. I feel like there's not always a video glitch, and definitely some part of the audio is missed. If someone is speaking there is a word or two missed. So, it's like the stream is continuing but cut out.
I implemented the BIOS changes you suggested, no change. I’m halfway through a movie and encountered 3 dropouts.
I found VT-D and hyper-threading but do not find “speed shift” or turbo boost in my bios.
Remember I have an older machine running W7and with discrete graphics that exhibits the exact same behavior (no issues bitstreaming over DirectSound in Zoom Player but the exact same dropouts under MC31).
I have a miniPC sitting around. I might do a fresh install of W10and install nothing but MC31…see what happens… possibly something else I installed on both of my HTPC’s could be conflicting with MC.
SimplySound:
No change in your LatencyMon output?
If you compare your screenshot above with mine, you have a higher level of DPC in the Kernel Framework and I'd like to see if we can work that down. Not that it will solve the problem.
SimplySound:
OK, so let's get a bit deeper into the OS Tweeks that hopefully will lower your ISR/DPC latency. Attached is a really good starting point guide to configuring Windows to deal with real-time audio. It only really scratches the surface, but it's a good starting point. (JimH & Team, you might want to throw a copy of this up on your site for reference)
The first few chapters just detail how Windows works and why we have issues using it for Audio/Video processing. Chapter 4 is where they start to get into some of the basic tweeks to implement. Go through this and let us know how it goes.
Again, benchmarks of LatencyMon will tell us if we're making progress so include those in your reports.
SimplySound:
Hey HTNut, I just had another thought. What is your buffer set to under the DirectSound device settings in MC31 (See attached)? I'm thinking the default is 25ms, but in the ASIO Driver settings I use, it is set to 50ms.
You might want to bump up the buffer and see if that solves the issue.
htnut:
--- Quote from: SimplySound on December 15, 2023, 10:02:42 am ---Hey HTNut, I just had another thought. What is your buffer set to under the DirectSound device settings in MC31 (See attached)? I'm thinking the default is 25ms, but in the ASIO Driver settings I use, it is set to 50ms.
You might want to bump up the buffer and see if that solves the issue.
--- End quote ---
Doug, first I want to thank you so much for the time exchanging ideas and providing these great suggestions.
The buffers setting in MC31 I did previously experiment with both setting it very high and very low. No difference in what I’m experiencing.
I went back through your email and combed through my BIOS menus and I did find Turbo Boost and now turned it off. I’m going to read the Glitch Free document and run another movie tomorrow to see what the LatencyMon readings are.
Thanks again, you’ve provided me new optimism!
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