ballenone Posted August 21, 2003 Share Posted August 21, 2003 how do you set the delay time according to distance from reciveror from front wall or what and will that make a diffrence in the sound of a movie Quote Link to comment Share on other sites More sharing options...
WMcD Posted August 21, 2003 Share Posted August 21, 2003 I tried two HT receivers and they were not to my liking and I returned them. So I did not get to this part of tinkering. But I'll hazard a guess. The problem arises from the fact that the center channel speaker is closer to you (at the listening position) than the two flanking units. At least it is that way if you have the three lined up on a straight line. So, you have to measure how much closer the center is to you than the flanking units. Maybe the center is 10 feet away and the flanking units are 12 feet. A 2 foot difference. That means the sound from the center arrives earlier than sound from the side mains. Sound in air travels at about 13.5 inches per millisecond (mS). So for each 13.5 inches closer the center in, you want to compensate with a delay of 1 mS. I the example, that means a delay of just under 2 mS. Then sound arrives at the same time. So (difference in distance/13.5) = delay Distance is in inches and delay is in mS. Gil Quote Link to comment Share on other sites More sharing options...
minn_male42 Posted August 21, 2003 Share Posted August 21, 2003 some receivers/processors allow you to set the delay very simply... you just enter the number of feet each speaker is from the listening position.... my pioneer elite receiver does this.... a tape measure and a few entries on the remote and i was done.... Quote Link to comment Share on other sites More sharing options...
tankhokie Posted August 21, 2003 Share Posted August 21, 2003 How does your recv. ask you to set the delay, in milliseconds? feet/meters? I know some older ones did it in actual time delay, but usually ended up sounding like a cheap hall effect, of course this was on a cheap recv too... What recv. is it? Quote Link to comment Share on other sites More sharing options...
marksdad Posted August 22, 2003 Share Posted August 22, 2003 delay, and distance are different, and delay usually adjusts in 10 millisecond increments, and yes it really does change the effect in movies, when used with distance, and a decent spl meter it all serves to make transitional sounds seem more natural Quote Link to comment Share on other sites More sharing options...
WMcD Posted August 22, 2003 Share Posted August 22, 2003 It looked to me that Ballen was thinking there is something to do with distance from the front wall overall. But the real issue as a starting point is difference in distance of flanking and center. An important concept. Once that is nailed down, the settings may be in feet, inches, or mS. Perhaps I'm being too picky and imagining there is a misconception. Smile Gil Quote Link to comment Share on other sites More sharing options...
marksdad Posted August 23, 2003 Share Posted August 23, 2003 now you know if we wernt picky we would not be here Quote Link to comment Share on other sites More sharing options...
m00n Posted August 23, 2003 Share Posted August 23, 2003 My harman kardon 520 had a time delay, but if I recall it was for DD only and had no affect on DTS. If I recall this correctly, why would they make a setting that only affected DD? Quote Link to comment Share on other sites More sharing options...
marksdad Posted August 24, 2003 Share Posted August 24, 2003 moon, i have been reading up on this to see if i could help, myself included, and it seems that different manufacturers have different ways of describing it, i no longer think distance and delay are very different. and maybe only in dd is because of the dedicated tracks? Quote Link to comment Share on other sites More sharing options...
ironwoods Posted August 25, 2003 Share Posted August 25, 2003 The delay should be set in accordance to how far behind you your rear speakers are located from main listening position. So you can compensate for various room sizes. You can make a shallow room sound longer, with more delay. Just play with it! Never underestimate a good whizzer cone - Gregg Quote Link to comment Share on other sites More sharing options...
BBB Posted August 25, 2003 Share Posted August 25, 2003 Go to question 20 AND 21 and check out the figures and chart at Dolbys FAQ. Dolby Labs Quote Link to comment Share on other sites More sharing options...
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