Search found 230 matches

by yeha
Tue May 17, 2005 7:10 am
Forum: Off Topic
Topic: Audiophilia: hobby or disease? (CONTINUED)
Replies: 226
Views: 113782

the only information i have regarding spatial location is a comparison made by a military radar specialist who found that his attempts at localizing weren't working nearly as well as his own ears during blind tests. i wasn't particularly impressed with his methods, but it's the only test i could fin...
by yeha
Mon May 16, 2005 7:36 pm
Forum: Off Topic
Topic: Audiophilia: hobby or disease? (CONTINUED)
Replies: 226
Views: 113782

Gorsnak , that'd nicely explain why post-echo is so much easier for me to detect with headphones. for me it's headphones all the way when i want to listen to something intently, whether for testing purposes, transposing a song or just because i love the music (10 years of piano + saxophone + clarin...
by yeha
Mon May 16, 2005 7:28 pm
Forum: Off Topic
Topic: Audiophilia: hobby or disease? (CONTINUED)
Replies: 226
Views: 113782

You are partly right anyway: on some things (as you note), instruments are much better than human ears, but on others electronics do not approach the human ear's sensitivity to nuance. Now, if you were worried about reproducing music in a way most suited to humans ' fidelity/enjoyment rather than f...
by yeha
Mon May 16, 2005 6:39 pm
Forum: Off Topic
Topic: Audiophilia: hobby or disease? (CONTINUED)
Replies: 226
Views: 113782

nope, it's because of masking that all psychoacoustic codecs exploit to either highly-quantize or remove frequencies altogether, if neighbouring bands contain enough power. depending on your lower bands, you can often get away with altering > 16khz data by even larger amounts. this isn't new, it's b...
by yeha
Mon May 16, 2005 4:02 pm
Forum: Off Topic
Topic: Audiophilia: hobby or disease? (CONTINUED)
Replies: 226
Views: 113782

although this debate is winding down, the human ear is not equal to nor more sensitive than electrical instruments. this has been conclusively proven by lossy audio compression testing, where an overwhelming majority of the population can't pick the difference between two signals that differ by 10+ ...
by yeha
Mon May 16, 2005 1:38 pm
Forum: Fans and Control
Topic: How making a quiet 92mm axial fan thread?
Replies: 3
Views: 1089

i'd just like to re-iterate that this fan has been working very nicely for me on an xp-90, and now that my new motherboard has pwm controls i can say the fan exhibits no additional noise when pwm or voltage controlled. not bad for a $2.50 ball-bearing fan. at low pwm levels it's effectively silent f...
by yeha
Wed May 11, 2005 12:36 am
Forum: Off Topic
Topic: Audiophilia: hobby or disease? (CONTINUED)
Replies: 226
Views: 113782

there isn't really much else for me to say - if my scientific arguments were wrong the best thing to do would be correct them, instead of passing them off as misguided. i'm really trying hard to understand where you're coming from, it's not matching up with any physics i'm familiar with, but i'm not...
by yeha
Tue May 10, 2005 10:28 pm
Forum: CPU Cooling
Topic: dual xeon w/passive heatsinks overheating
Replies: 14
Views: 3921

those 'passive' 1u and 2u heatsinks are only passive in the sense that there's no fan attached - they still require huge amounts of air to be shifted through them to adequately cool. 1u/2u servers i've stood near created a fearful amount of noise, which was front/back fans forcing air through the ch...
by yeha
Tue May 10, 2005 9:53 pm
Forum: Off Topic
Topic: Audiophilia: hobby or disease? (CONTINUED)
Replies: 226
Views: 113782

the number of people sampled is low for population testing, but the people involved were presumably high-end audio enthusiasts, and none of them could tell the difference. having 7 involved people all fail to find a difference is more convincing than having no people at all ever bother to do blind t...
by yeha
Tue May 10, 2005 8:10 pm
Forum: Off Topic
Topic: Audiophilia: hobby or disease? (CONTINUED)
Replies: 226
Views: 113782

i don't understand.. are you saying abx testing is stupid pseudo-science? or that you agree with the test results which say cable is completely irrelevant to audio fidelity? the first would be mind-blowing to say the least, the second would seem to counter what you've been saying.. ah well, back to ...
by yeha
Tue May 10, 2005 7:25 pm
Forum: Off Topic
Topic: Audiophilia: hobby or disease? (CONTINUED)
Replies: 226
Views: 113782

i personally couldn't care less what people spend their money on - if they want to drape their walls in quarter-inch lead, pour distilled penguin blubber into their car's gas tank every day or mount their pc inside a 24 karat gold pyramid, more power to them. now if someone starts claiming there are...
by yeha
Tue May 10, 2005 5:44 pm
Forum: CPUs and Motherboards
Topic: Gigabyte ATI XPress chipset M-ATX availability?
Replies: 5
Views: 5003

a few people have emailed them, the responses vary with whatever mood the person on the other end is. email responses have said april, may and june within the space of a couple weeks so who knows when it'll be out. last i heard the board was being used by oems, retail should follow shortly thereafter.
by yeha
Tue May 10, 2005 10:49 am
Forum: Off Topic
Topic: Audiophilia: hobby or disease? (CONTINUED)
Replies: 226
Views: 113782

there are real, measureable ways to increase the fidelity of audio equipment. a lot of audiophile (and yes, i'm bunching the realistic, unrealistic and loony audiophiles together here) gear does no such thing. the real, measureably better parts i applaud and am extremely respectful of the engineerin...
by yeha
Tue May 10, 2005 8:43 am
Forum: Off Topic
Topic: Audiophilia: hobby or disease? (CONTINUED)
Replies: 226
Views: 113782

Are you just making this up or do you know what you are talking about? The dielectric constant is the ability of a material to pass current--not absorb or store it. I am not sure exactly what you are getting at here... do you? which other physical constant will determine how much a surrounding mate...
by yeha
Mon May 09, 2005 11:22 pm
Forum: Off Topic
Topic: Audiophilia: hobby or disease? (CONTINUED)
Replies: 226
Views: 113782

uhoh.. OK. Electricity travels through the cables on the floor, some leaches out. This is stored in the carpet as static electricity (the earlier poster who thinks that carpets do not/cannot do this has apparently never shocked himself when crossing a carpeted room in sox, I guess). This electricity...
by yeha
Mon May 09, 2005 10:12 pm
Forum: CPUs and Motherboards
Topic: Foxconn NF4K8MC-ERS (mAtx, 939)
Replies: 58
Views: 48456

yep i've seen that thread, but grayskull isn't the easiest person to get information out of :) shuttle made that enthusiast board on a whim, i don't believe there's even been a decision made about whether it'll be released or not. ati is doing a terrible job convincing motherboard manufacturers to g...
by yeha
Mon May 09, 2005 7:56 pm
Forum: Power Supplies
Topic: Why do PSUs have fans????
Replies: 31
Views: 10730

a lot of audio gear hardly draws any power at all. my father had some monstrous speakers back in australia and he told me they only actually used 10 watts or so. all the speakers i have in my house right now draw 4 watts max according to my kill-a-watt, regardless of how loud they're turned up. if a...
by yeha
Mon May 09, 2005 6:54 pm
Forum: Off Topic
Topic: Audiophilia: hobby or disease? (CONTINUED)
Replies: 226
Views: 113782

i recall this debate many times over at hydrogenaudio.org, and the audiophile side always comes out with the bruises. so much of the gear is completely worthless, and so many of the perceived improvements in sound actually take you further from the sound-as-recorded (i.e. you're moving away from sou...
by yeha
Mon May 09, 2005 6:28 pm
Forum: CPUs and Motherboards
Topic: Foxconn NF4K8MC-ERS (mAtx, 939)
Replies: 58
Views: 48456

sapphire should be coming out with a 939 matx board with the ATI chipset, sataII and HD audio IIRC sometime also.. if it has good OC options and good onboard vid then i may finally have to go 64 if you're thinking of the sapphire a56 board (939, matx, ati chipset), i emailed them a while back and t...
by yeha
Sun May 08, 2005 9:27 pm
Forum: Power Supplies
Topic: Why do PSUs have fans????
Replies: 31
Views: 10730

well, no ac -> dc conversion can be perfectly efficient, some heat is always created. it's possible to get it up to 95% efficiency or so, but that requires extremely expensive parts. if your psu is 80% efficient and you ask 150 watts from it, you'll have 37 watts of heat appearing that you have to d...
by yeha
Sat May 07, 2005 8:57 pm
Forum: CPUs and Motherboards
Topic: RS480M2-IL now has BIOS fancontrol
Replies: 14
Views: 5223

i'd just like to remind anyone using this board that a clockgen has been released for it - check the clockgen homepage for the rs480m2 build. since the onboard clock generator is a bit on the crippled side, the highest value you can choose is 220 mhz. regardless, that's a 10% faster machine for free.
by yeha
Sat May 07, 2005 12:08 am
Forum: Fans and Control
Topic: The quietest 80mm case fan?
Replies: 18
Views: 5483

heh this is kind of fun jumping back and forth. anyway in the ocforums thread i picked out the best fans i saw during my australian-retailer search. the titan might be a bit risky, but the other fans generally have little motor noise to speak of but will all require undervolting to reach your desire...
by yeha
Fri May 06, 2005 10:56 pm
Forum: Fans and Control
Topic: The quietest 80mm case fan?
Replies: 18
Views: 5483

just a side note (from another forum), this pc will be used by someone in a bedroom while another person is sleeping, until all hours of the night. we can assume a typical bedroom in australia will be 20 dba or so, which means a fairly serious quieting job is in order, if the tinkerer so desires. an...
by yeha
Fri May 06, 2005 9:15 pm
Forum: Video Cards & Monitors
Topic: next gen nVidia to pull 200+ W
Replies: 65
Views: 18079

i think the problems are more with tsmc (the actual manufacturer) than nvidia (the gpu designer). both nvidia and ati use tsmc to make many (all?) of their gpus, all ati/nvidia do is the design work. their 110nm cards haven't performed as well as a die-shrink normally would (see 6600, x800xl), and i...
by yeha
Thu May 05, 2005 2:55 pm
Forum: CPU Cooling
Topic: vapor chamber heatsinks - yay or nay?
Replies: 38
Views: 11042

i read on another forum that asetek has delayed the release until june as the factory couldn't meet demand. so it probably won't reach retail until july.
by yeha
Wed May 04, 2005 5:59 pm
Forum: Video Cards & Monitors
Topic: Nvidia Core Slowdown Threshold
Replies: 6
Views: 2311

i thought that value could only be set in the bios. i just downloaded nibitor 2.1 and it had an option to edit the temperature threshold value, so that may be your only option. use at your own risk, of course :)
by yeha
Mon May 02, 2005 11:02 pm
Forum: CPUs and Motherboards
Topic: Amazing power characteristics for A64 "Venice"!
Replies: 9
Views: 6399

well cool'n'quiet consists of powernow transitions to lower multipliers/voltages, whereas typical operating system idle loops consist of issuing the hlt instruction to instruct the cpu that nothing important is happening. cool'n'quiet transitions and hlt instructions do different things, and while b...
by yeha
Mon May 02, 2005 12:40 pm
Forum: CPUs and Motherboards
Topic: "Venice" Athlon 64 power & heat review
Replies: 91
Views: 50822

i don't like it, those numbers look too low. is it a written law that all cpu power is delivered from the aux connector? i know some a64 setups work fine (albiet sub-optimally) when it's not connected, so there must be a system in place to draw cpu power from the main atx plug instead of the aux.
by yeha
Sun May 01, 2005 12:13 am
Forum: Fans and Control
Topic: ceramic axis fans
Replies: 13
Views: 4791

if they're the same ceramic bearings that arctic cooling claims to use in many of its vga card silencers, the noise they make is often complained about on this site. arx claims their ceradyna bearing fans are as quiet as sleeve-bearings while lasting much longer and retaining the noise profile. does...
by yeha
Sat Apr 30, 2005 11:05 pm
Forum: Fans and Control
Topic: 3 blade delta 92mm/120mm fans
Replies: 10
Views: 3373

nidec's beta sl fans are some of the most popular for pc silencers in japan - apparently the motor noise is extremely low, and there are a number of models with interesting characteristics. for example, models which don't spin at all, until a thermistor hits 55 degrees or so at which time the fan sp...