The cost of a Mac
in [Mac Systems]
|
Prev: type of foil tape for iMac
Next: OSX function list
From: JF Mezei on 2 Jan 2010 20:22 Lloyd Parsons wrote: > 5.1 audio is : > 2 - front > 1 - center > 2 - rear > 1 - subwoofer (this is the .1 in 5.1) The "2 rear" should read: 1 Left rear. 1 Right rear. Contrary to ProLogic synthetized sound, Dolby 5.1 has 2 distinct rear channels. > 5.1 isn't a big loss these days as there are few titles that are encoded > for it anyway. And you have to have a room and furniture placement to > make it effective anyway. All DVDs are encoded in 5.1 or DTS with a few exceptions for older titles.
From: Lloyd Parsons on 2 Jan 2010 20:45 In article <00bbc129$0$23459$c3e8da3(a)news.astraweb.com>, JF Mezei <jfmezei.spamnot(a)vaxination.ca> wrote: > Lloyd Parsons wrote: > > > 5.1 audio is : > > 2 - front > > 1 - center > > 2 - rear > > 1 - subwoofer (this is the .1 in 5.1) > > The "2 rear" should read: > > 1 Left rear. > 1 Right rear. > > Contrary to ProLogic synthetized sound, Dolby 5.1 has 2 distinct rear > channels. > > > 5.1 isn't a big loss these days as there are few titles that are encoded > > for it anyway. And you have to have a room and furniture placement to > > make it effective anyway. > > All DVDs are encoded in 5.1 or DTS with a few exceptions for older titles. BluRay are mostly encoded in hires DD and DTS formats these days, like Dolby TrueHD and DTS-HDMA. A very few are encoded for 7.1 of one sort or another.
From: JF Mezei on 2 Jan 2010 20:49 Michelle Steiner wrote: > I have a coax cable from my DVD player to my 7.1 receiver, and it carries > DTS and Dolby Digital audio (not at the same time of course). OK, I stand partly corrected. The digital audio coax cables do use RCA jacks, like the analogue copper cables. But they carry entirely different stuff. Consider there is a very good reason that the analogue RCA copper cables have "L" and "R" connectors. That is because each cable carries exactly one channel in an analogue form (line level voltage). Voltage variations is what makes the sounds. For coax, the outer sheath is usually aluminium. (either foil or woven strands). Neither coax nor toslink have "L" or "R" plugs because a single plug carries data stream that can be decoded into multiple discrete/separate channels. The RCA analogue cables each require 2 conductor cables. Coax is meant to be used as a glorified antenna (shielded from outside interference). And yes, there are cables meant for RCA analogue which are built with the second conductor laid as a sheath around the first one. Technically coax, but used to carry current, not RF.
From: sbt on 2 Jan 2010 21:45 In article <00bbc129$0$23459$c3e8da3(a)news.astraweb.com>, JF Mezei <jfmezei.spamnot(a)vaxination.ca> wrote: > > All DVDs are encoded in 5.1 or DTS with a few exceptions for older titles. > This is just not the case for "All". It is true for most, maybe even "Almost all"; however, PCM or AC3 is all that is requied for NTSC standard compliance (PAL also allows MP2). While many older titles aren't remastered to Dolby or DTS, you will also find simple stereo to be the case with some indie titles and low-budget offerings. -- Spenser
From: Priam on 2 Jan 2010 22:30
On 01/02/2010 05:11 PM, Lloyd Parsons wrote: > In article<hhofld$j2t$1(a)news.eternal-september.org>, > Priam<priam(a)notsosure.com> wrote: > >> On 01/02/2010 08:49 AM, Lloyd Parsons wrote: >> >>> Priam on your motherboard, regardless of what the mfg may state, you >>> won't get more than DD 5.1 or DTS 6.1 (older codecs) output on optical >>> or coax. >> >> I'm just getting into this now as I have bought my first digital TV on >> boxing day. I don't even know how to plug it! I just downloaded the >> manual so I can see the plug description for the TV in a larger format. >> >>> ALL the new hi-res, and 7.1 and above codecs require either : >> >>> 1. HDMI - will send them as discrete digital signals >> >> I have HDMI plugs on the video card and HDMI on the TV, of course. My >> monitor is now connected with a big analog cable. At the back I see DVI >> and D-Sub plugs, but I wonder if I should care about switching away from >> analog. >> >> Video card: >> >> ASUS' EN9400GT is a half-height Geforce 9400GT videocard specifically >> made for those cramped Home Theatre PC situations that are a pain come >> upgrade time. It packs in VGA, DVI and most importantly an HDMI output >> right on board, and best of all, for older PCI Express x16 >> equipped PCs it does the High Definition video acceleration itself! Ever >> try to do HD decoding on an older PC? Take our word for it, without an >> HD accelerator it ain't pretty. ASUS' EN9400GT-1GB is HDCP complaint >> (sic), meaning it can output both audio and video from Blu-ray discs and >> other protected sources at full quality, to HDCP compliant displays. >> >>> 2. Multi-channel coax - sends each channel via a coax cable for each >>> channel. (analog). >> >> On the audio output, I have Rear, Side, C-sub and I suppose the standard >> Out plug is for front. Since it has "side", I suppsoe this means 7.1? >> >> Anyway, I suppose all I need for now is an HDMI wire, right? >> >> My TV doesn't have a plug for headphones. Is it possible to connect >> headphones to the audio output with adapters? > > 5.1 audio is : > 2 - front > 1 - center > 2 - rear > 1 - subwoofer (this is the .1 in 5.1) > > It sounds like it is only 5.1 unless I'm misreading something. As I said, when the sepcs say 7.1, it's because there's a way to output 7.1. Otherwise, it's not 7.1. So, the Center plug also does the subwoofer. The Rear plug does R & L rear speakers, the Side, R & L side speakers, and the Out plug, the R & L front speakers. Altogether, it's 8 speakers. Though it's hard to know what to expect when you buy a Mac: Audio * Built-in stereo speakers * Two internal 17-watt high-efficiency amplifiers * Headphone/optical digital audio output (minijack) * Audio line in/optical digital audio input (minijack) * Built-in microphone * Support for Apple Stereo Headset with microphone http://www.apple.com/ca/imac/specs.html with PCs, ALL the specs are available. Manufacturers are not afraid to show them. Of course, here, at $90 without a gpu, we're talking about a top of the line mobo :) |