-
Posts
15,745 -
Joined
-
Last visited
-
Days Won
228
Content Type
Profiles
Forums
Events
Everything posted by Grahame
-
digital or analog cable more important?
Grahame replied to dreamwhisper's topic in Audio Accessories
Let me google that for you -
Q on digital cable form factors and their related performance
Grahame replied to TC_Shadow's topic in Home Source Components
Some people disagree "AES/EBU doesn't fix anything in s/pdif, it makes it worse. It uses wiring and connectors that lack the bandwidth and impedance matching for RF signaling. Just because XLRs are suitable for analog audio doesn't make them good for high frequencies. It's included on Transporter frankly because of legacy expectations, and perhaps in a pro environment you might need it for one reason or another (got the cable handy, used up all the other inputs, etc) but I don't recommend it. Squeezebox : Community : Forums - View Single Post - Help: Best new device for audiophile with DAC? "Its nice to know someone else agrees with me about AES EBU, I always thought I was the lone voice in the wilderness. Anyway I see two main reasons for the inferiority of AES/EBU. 1. XLRs are horrible RF connectors. In order to send a square wave fairly faithfully the interface must support a bandwidth many times higher than the frequency of the square wave. For the signals in question that is getting well up into the RF spectrum where the XLRs are terrible. The impedance varies radically with frequency which will cause all kinds of bizarre reflections. The choice of XLR was a very poor choice. 2. Output voltage. The S/PDIF electrical spec is 0.5V into 75ohms, but the AES/EBU is 3-5V into 110 ohms. Think about that for a second, what happens when you put 5volts across 110 ohms? You get almost 50mA of current flowing. This means the driver sitting in the source box has to be able to dump between 30-50ma into the cable. That causes huge current spikes in the power and ground pins of the driver chip which is going to cause big noise spikes in the power and ground planes of the board. If you are not extremely careful that is going to cause significant jitter in the output signal. All modern high speed interfaces use less than 0.5V signal. As far as I can tell the XLRs were chosen because studios had lots of microphone cables and wanted to use them. Because they are such lousy RF transmission lines they had to go with high voltages to make sure there was some signal left at the end. John S. " Squeezebox : Community : Forums - View Single Post - Help: Best new device for audiophile with DAC? -
Oh no it isn't ! Pantomime - Wikipedia, the free encyclopedia
-
Beware the next page!
-
Midlake - Wikipedia, the free encyclopedia . Interesting ...
-
Heresy! "they just work" Burn the un-believer!
-
One of these (YST-MSW10) for $5 from a local high school rummage sale. Fills out the squeezebox boom nicely, using its subwoofer out. Can't complain about the price if this is anything to go by [url=http://www.hifido.co.jp/KW/G0204/J/0-10/C08-38125-22832-00/]YST-MSW10 YAMAHA ?? McIntosh/JBL/audio-technica/Jeff Rowland/Accuphase/?/?
-
Eye-Fi memory cards: wireless photo and video uploads straight from your camera to your computer & the web.
-
Go to your local Costco. See what takes your fancy. If you don't like it after a while, take it back. Repeat until satisfied. And remember MOAR pixels ain't necessarily better. http://www.nytimes.com/2008/11/13/technology/personaltech/13basics.html Giz Explains: Why More Megapixels Isn't Always More Better - Digital Cameras - Gizmodo
-
I guess it prevents the bits being naughty
-
SACD -- Is it worth it in a headphone rig?
Grahame replied to The Monkey's topic in Home Source Components
As do these people Laserdrop -
SACD -- Is it worth it in a headphone rig?
Grahame replied to The Monkey's topic in Home Source Components
One way of looking at this, is, Is it the Data/Original Bits/ "Music" you are interested in, or the replay chain associated with a given format. If you view shiny plastic discs as a delivery mechanism, with the content being the important stuff, we can say: Redbook CD: content can be liberated from delivery mechanism DVD-A: content can be liberated from delivery mechanism SACD: content can be liberated from delivery mechanism - indirectly However, with advances, such as mores law, and the rise of commodity distributed computing. e.g. Amazon's EC2 brings new might to password cracking ? The Register You could say that Sony needs to be lucky always, we just need to be lucky once SACD is still vulnerable to the Analog hole - Wikipedia, the free encyclopedia. Given a player, and ADC of your choice you could make Needle Drops (SACD Drops?) of your favorite disks, and never have to remove them from their cases again. This raises the question , are you listening to the original bits, or artifacts of the replay process(x2) - but that's another discussion. With the advent of unencumbered formats that support hi-rez (to the bit width/depth of your choice) and low marginal cost digital distribution (thats downloads to you) it raises the interesting question of cost vs value. If the studios mastered in the digital domain, should it cost more or less to just release the original bits, vs the (not very onerous, admittedly) "extra" expense of downsampling/converting to a more limited resolution (e.g. 24/96 masters vs 16/44.1 redbook) And how hard/expensive would it be to replay the analog masters, on a decent, newly cleaned replay heads, setup, in front of a decent ADC, (or several, each running at the target sample rate/bit depth), and then selling the results? We live in interesting times. -
Met up with some fellow countrymen, whereupon we ritually burnt the effigy of a failed terrorist. Guy Fawkes Night - Wikipedia, the free encyclopedia Guy Fawkes - Wikipedia, the free encyclopedia or just see V for Vendetta (2005)
-
4 Reasons to Carry a Shovel At All Times - The Oatmeal
-
I guess the design review meeting went something like this Fuck Everything, We're Doing Five Blades | The Onion - America's Finest News Source
-
That's a very dexterous statement. Right On!
-
Remind me again what form the audio data on a CD is in?