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From: JF Mezei on 2 Jan 2010 15:38 Michelle Steiner wrote: > Wrong, just plain wrong. S/PDIF signals can be carried on copper coax > cables. COAX is not considered "copper" (even if the core is made of copper). In terms of audio: Copper: RCA or Sony plugs. coax: BNC style connector fibre: toslink connector.
From: Lloyd Parsons on 2 Jan 2010 16:04 In article <michelle-E894AA.13401502012010(a)nothing.attdns.com>, Michelle Steiner <michelle(a)michelle.org> wrote: > In article <00bb7dfd$0$26803$c3e8da3(a)news.astraweb.com>, > JF Mezei <jfmezei.spamnot(a)vaxination.ca> wrote: > > > > On many source units and AVRs are 2 digital audio ports that support > > > Dolby 5.1 and DTS (not the newer hi-res codecs though), one will > > > usually be optical (toslink), the other is coax. Both work fine. > > > > But neither are considered "copper" wires. > > coax is copper. You are correct Michelle. I've been involved in all sorts of electronics for over 45 years and coax is just as 'copper' as any other wire.
From: Lloyd Parsons on 2 Jan 2010 16:06 In article <00bb7dfd$0$26803$c3e8da3(a)news.astraweb.com>, JF Mezei <jfmezei.spamnot(a)vaxination.ca> wrote: > Lloyd Parsons wrote: > > > On many source units and AVRs are 2 digital audio ports that support > > Dolby 5.1 and DTS (not the newer hi-res codecs though), one will usually > > be optical (toslink), the other is coax. Both work fine. > > But neither are considered "copper" wires. > Maybe on your planet, but here on Earth, coax is copper wire. Ooops! I just noticed your from Canada. Maybe up north they don't consider it to be copper. :) > > > Note this is NOT synthesized and was around long before HDMI was even a > > thought in the committee that designed it was borne. > > Correct. But when using copper wires, you only have 2 channels to work > with, and Dolby Pro Logic will synthetize 4 channels from it. Dolby and DTS are both bitstreams that are decoded in the receiver, NOT over the wire seperate channels. Unless you are talking about the speaker wire, or decoded bitstreams carried as discrete analog channels.
From: JF Mezei on 2 Jan 2010 16:12 Michelle Steiner wrote: > coax is copper. Will have to disagree on terminology then. "Copper" in sound cabling carries electrical signals. In sound, it usually means analogue line level signals that can be fed directly into the amplifier. When using Dolby Pro Logic, those analogue signals must first be digitized, then processed and totally new signals produced at other end to be fed into the amplifier. Coax sound cables carries data broadcasts and plug into a radio receiver which produces the data and then electronics which produce analogue line level signals that go into the amplifier. Fibre is simular to coax except it has the fibre terminal instead of a radio raceiver.
From: Priam on 2 Jan 2010 17:00
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? |