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General Asylum General audio topics that don't fit into specific categories. |
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General Asylum General audio topics that don't fit into specific categories. |
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In Reply to: An uniformed hypothesis posted by Bob Neill on August 7, 2006 at 06:40:53:
Question: How do you find film in a cinema? Not a stupid question because it's x frames per second so it's non-continuous also. High definition progressive video effectively delivers 50 or 50 frames per second which is actually somewhat better than some film rates.With TV, we rely on the persistance of phosphors or other light sources to help create the illusion of a seamless event, and with both TV and film we also rely on the eye's response time. We don't have a non-episodic display for any of them so I don't think it's the non-episodic factor that is an issue with digital video. Look for causes elsewhere. One place to look is sharpness filters which introduce 'distortion'. Things often look sharper and less crisp if you reduce the sharpness setting, often to 0. There are a number of calibration discs around which can help you to do this but the simplest to find may be the THX optimiser test patterns found on many DVDs mastered with the THX process. Other settings (brightness, contrast and colour) are also often set by manufacturers for effect rather than producing an accurate image and probably are contributing to the effect you refer to. A correctly calibrated TV image looks a lot better than most people are used to, and a lot more natural.
As for sound, at a 44.1 kHz sampling rate for CDs, I'd suspect that the inertia of speaker drivers would definitely smooth any 'steps' in the signal passed to them. I somehow doubt there's any speaker around capable of reproducing the sampling steps of the digital signal in the sound they generate.
Perhaps what you consider as 'unnaturally crisp' isn't unnatural at all, and you're just noticing a difference with other sources which aren't as crisp but which you've become adjusted to and you've simply come to expect something a little less crisp.
David Aiken
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Follow Ups
- Hmmmmmm… - David Aiken 01:41:26 08/08/06 (1)
- Regrettably, by the time a CD signal gets to the speakers it's too late for them to help. Unless of course... - clarkjohnsen 07:59:15 08/08/06 (0)
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