I don't mind if the problem was on my end in fact, I wouldn't mind at all because then I'd 'know' the cause.īut I know for sure your test is not going to shed light on anything. I know all too well people who just argue and argue refusing to accept that the problem really is with their OS or Ram or they didn't register the program or they don't have the right drivers or they didn't power on their PC etc. Except the problem is, I've never had a problem recognizing when the problem is on my end. Sorry if I seem harsh, I just won't keep silent about bull**** (cue RB's profanity filter).Īnd the conclusions we might draw, perhaps thinking that we will draw the wrong ones and not solve your problem.I'll give you that: That's not a bad hypothesis at all. Here's my advice: try a different approach of assuming that we are quite competent here and will solve the problem without the need of interference with our investigation. This would explain why you are reluctant to post any hard data which we might draw our own conclusions about. I think I figured out the reason for your contradictory approach: you're attempting to exert control on the discussion and the conclusions we might draw, perhaps thinking that we will draw the wrong ones and not solve your problem. If you run two audio_latency tests, one with vsync and one without and post the results, we can compare the input->video latencies for both, the ultimate point of the tests. Whether Vsync is on or off it doesn't seem to have any effects on my results.Vsync should have no effect on this test.īased on these values, I calculate that the latency from joypad input to video display on your system is 63 milliseconds, and the latency from joypad input to audio output is 148 milliseconds. Time_latency: I get a pretty constant +140/+155. And unless I got something wrong, there's no reason to expect it should,since it shouldn't have any effects on audio or input lag, only video. Whether Vsync is on or off it doesn't seem to have any effects on my results. Now for the Time_latency: I don't look at the screen and concentrate on synchronizing my presses with the beat. And like I said, if I change the vsync setting afterward (whether it's turning it on or off) it doesn't feel quite as sync anymore. This is entirely subjective though and someone else,on the same computer, might feel they are synced when the adjustment is set to say -15. In audio_latency, I adjust it to +85 to feel both audio and video are synced. (no difference noted when using 640x480 as opposed to 512x480) ![]() One time with 640x480 another time with the superior resolution for Nes emulation: 512x480. I don't think we've reach the limits of software only test though.Īll test are done in fullscreen 60hz. Unless someone can come up with a genius software-only test, the truly objective results can probably only be achieve via external hardware,like a high speed camera or something like you mentionned. What figures do you get with and without vsync? (and why the reluctance of posting your results?)Not to start an argument but there's no truly "objective" results here.It can give you a general idea and some pointers,but no hard facts. Run audio_latency, note the value, then run time_latency and the difference is your video+input latency. ![]() What about the objective stuff? Touchy-feely stuff is only useful as a guide to finding the objective. I'll try other sounds too (maybe a high-pitch square wave). As for the sound, I figured a click would be the easiest sound to identify. I spend more time on these (should be obvious) and liked the flashing square much better. The only reason the original ones did that was due to them being quick hacks. ![]() I'll have to test this more tomorrow.Īs you can see, I eliminated the full-screen flashing (it was too much, as you said). I just tried one that had a block moving horizontally across the screen with a pointer you move left and right until it seems that the click occurs when the block crosses the pointer. I'm attempting to improve audio_latency, since it's hard to visually tell how in-sync they are. What figures do you get with and without vsync? (and why the reluctance of posting your results?) Curious to hear about others impressions.What about the objective stuff? Touchy-feely stuff is only useful as a guide to finding the objective. In audio_latency, I adjusted the timing until I felt video and audio were synced and when I switched vsync, it did felt like they weren't quite as synced anymore.
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