3 ms·

Boots? It only boots after power outages or updates. Otherwise it's in standby mode and the display turns on in a matter of seconds. The UI is 1 layer deep unl

by scurvy 10y ago

Boots? It only boots after power outages or updates. Otherwise it's in standby mode and the display turns on in a matter of seconds. The UI is 1 layer deep unless you're in the settings menu. Apps are their own thing. No sync issues for me as it's all pass through to sound bar.

4ad 10y ago
> turns on in a matter of seconds. Are you serious? Seconds??? Turning on a TV and waiting seconds is considered acceptable today? My displays start in milliseconds. > No sync issues for me Ah, yes, the "not for me" argument. > as it's all pass through to sound bar. This is not quite true, as my measurements showed, but if it were strictly true it would be bad, because video takes time to process, and audio would come too early. But in the 3D configuration the sound bar adds a delay of its own. How do you think the 3D sound works? There's a DSP, with a buffer, and sound is delayed such then when taking in account reflections in the room, etc, you get the impression of 3D sound. To work properly, the delay is on the order of second-order reflections in the room. But even in the 2D configuration the sound bar adds a delay, as I measured with an oscilloscope. I guess they just turn the DSP program off, but still pass it through all the buffers. This is trivial to hear without an oscilloscope, just turn on both the sound bar and integrated TV speakers. However the culprit is not the audio chain, which seems to have a deterministic latency, it's the video chain, which has a nondeterministic latency. In the default configuration the TV comes with a lot of stupid and absolutely awful video processing filters in the chain, for example 60Hz interpolation, all kind of noise reduction filters, a compressor, etc. All these add variable video latency, and there doesn't seem to be any kind of feedback between the audio and video chains. The audio/video sync problem is a well known problem: https://www.google.at/search?q=sony+bravia+audio+video+sync+delay https://www.google.at/search?q=sony+bravia+audio+video+sync+... By turning as much as as the video processing off as the dreaded UI will let you, you can minimise the audio/video delay, but as I observed with an oscilloscope, you can never bring it down to acceptable levels. I have a extra hardware device in the audio chain that I can use to sync them up, but it's a PITA to use because each time I change input sources, or do anything really, the video delay changes and I have to reset. Plus, one day I got a software upgrade, and all my careful setting of disabled the vomit-inducing video processing were reset to default. I guess it works all fine if you have no standards.
- scurvy 10y ago
  Ehh I think you're a bit unreasonable. Even LCD displays take a few seconds to turn on. Power on any recent LCD from cold and it takes a while to boot. Resuming from a S3 state (or whatever the LCD equivalent is) even takes a second or two. As for the sync issue, yeah I don't have it. Sorry that your gear is crud. Cannot reproduce. Most soundbars can adjust the audio delay if you're having sync issues. I have a X930D and the picture is great (albeit bright in standard mode). In Cinema Pro it's pretty accurate. I couldn't tell much difference between the "tuned settings" from AVS and such vs Cinema Pro. As for my lack of standards, let's leave the ad hominem attacks out please.

by scurvy 10y ago

4ad 10y ago

> turns on in a matter of seconds. Are you serious? Seconds??? Turning on a TV and waiting seconds is considered acceptable today? My displays start in milliseconds. > No sync issues for me Ah, yes, the "not for me" argument. > as it's all pass through to sound bar. This is not quite true, as my measurements showed, but if it were strictly true it would be bad, because video takes time to process, and audio would come too early. But in the 3D configuration the sound bar adds a delay of its own. How do you think the 3D sound works? There's a DSP, with a buffer, and sound is delayed such then when taking in account reflections in the room, etc, you get the impression of 3D sound. To work properly, the delay is on the order of second-order reflections in the room. But even in the 2D configuration the sound bar adds a delay, as I measured with an oscilloscope. I guess they just turn the DSP program off, but still pass it through all the buffers. This is trivial to hear without an oscilloscope, just turn on both the sound bar and integrated TV speakers. However the culprit is not the audio chain, which seems to have a deterministic latency, it's the video chain, which has a nondeterministic latency. In the default configuration the TV comes with a lot of stupid and absolutely awful video processing filters in the chain, for example 60Hz interpolation, all kind of noise reduction filters, a compressor, etc. All these add variable video latency, and there doesn't seem to be any kind of feedback between the audio and video chains. The audio/video sync problem is a well known problem: https://www.google.at/search?q=sony+bravia+audio+video+sync+delay https://www.google.at/search?q=sony+bravia+audio+video+sync+... By turning as much as as the video processing off as the dreaded UI will let you, you can minimise the audio/video delay, but as I observed with an oscilloscope, you can never bring it down to acceptable levels. I have a extra hardware device in the audio chain that I can use to sync them up, but it's a PITA to use because each time I change input sources, or do anything really, the video delay changes and I have to reset. Plus, one day I got a software upgrade, and all my careful setting of disabled the vomit-inducing video processing were reset to default. I guess it works all fine if you have no standards.

scurvy 10y ago
Ehh I think you're a bit unreasonable. Even LCD displays take a few seconds to turn on. Power on any recent LCD from cold and it takes a while to boot. Resuming from a S3 state (or whatever the LCD equivalent is) even takes a second or two. As for the sync issue, yeah I don't have it. Sorry that your gear is crud. Cannot reproduce. Most soundbars can adjust the audio delay if you're having sync issues. I have a X930D and the picture is great (albeit bright in standard mode). In Cinema Pro it's pretty accurate. I couldn't tell much difference between the "tuned settings" from AVS and such vs Cinema Pro. As for my lack of standards, let's leave the ad hominem attacks out please.