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About yogsogoth

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  • Birthday 06/04/1976
  1. yogsogoth

    Your informational guide to the net filter debate

    There is a panel discussion on this at Paddington RSL tomorrow at 03:15 (Saturday 06-08-2010) According to this article more information on the Coalition stance will be given. I just wish I could get there myself to hear what they have to say. I
  2. yogsogoth

    Well this is one way to stop woman beaters

    Not too long ago I called the cops when I saw a guy swing a girl into a fence, I have never seen something like this before but one thing I got from it was just how easy it can be for someone physically stronger to harm another person. It scared me, one part of me wanted to go be a tough guy and save the girl from this prick, the other part of me said that was a bad plan. In the end I made it known that his actions were witnessed by yelling something out at them and then called the local police station to report what I had seen. While I think I took the best possible actions I could without making things worse I am left with a feeling that all I really achieved was to make this prick be more careful about where he assaults someone. I can't know this for sure, but as the cops never contacted me after the report I assume that no legal action was ever taken. And based off the stuff I have read and heard that is likely because the girl involved did not make any official report, I would guess because of fear. And that is fucked! Not that the girl may have been scared but because the legal system and in this case (I have been told) the racial culture have somehow created a "feeling" (me/wants better words) that the best option it just to put up with this abuse. With regards to the OPs video clip, I like it, the idea of someone that picks on defenceless people being punished by scarier people that have done really bad things but still have a sense that some things can't be justified, in this case hurting women, makes me feel like someone has the back of those that are unable to defend themselves. The idea for abusing women I find reprehensible, but I also feel that using any position of power, be it physical or mental to attempt to force submission of any one equally reprehensible. I think I just don't like people that can't except the ideas, feelings and expatiations of other people and think that everyone must see it their way. I guess this can reveal itself in a number of ways but I suspect that often it shows up as some form of domestic violence. A little saddened yog
  3. yogsogoth

    For those who think MP3 is great.

    Hmmm, I am thinking that the declaration that certain media or formats are better than others is formed in ways that some people are missing. Without stating what I prefer (not that it has not been said before) I would work backwards. First I notice that I prefer to listen to one media or format over another. It is not until that experience is had that I would then try to explain it. I think this is what is happening, people like one over another and then as an afterthought look at the technical difference and seek evidence to support their opinion. Music and sound are complex and how they interact with our minds is even less understood, the very existence of a word like " psychoacoustics" suggests that the mechanics of sound are not the whole picture when determining the quality or enjoyment factor of sound, part of the experience is created by our minds and this is possibly influenced by things we never consciously hear but our minds do factor in to the experience. This is what I love about audio, it is an ongoing experiment to satisfy our minds need for things we cannot consciously perceive. So when someone decides that one thing is better than another they seek to explain it and they only have a limited tool set to do this; Things like frequency analysis, distortion measurements, signal to noise ratios Et cetera. These thing prove nothing, they simply form a foundation to explain the difference between one form over another, it is a reaction to explain ones personal preference. Think of a person that you are attracted to, now note what it is that attracts you to them. I am guessing people will note things like eyes, there shape and colour, lips, the tone of some ones voice, things of this nature are features, they are things that we perceive well and remember. But they are not unique, some where there is a person that will match what you described but they will not be the same and you are not guaranteed to find them attractive. There are subtleties to the things we like and we can never seem to put our finger on them, but they sever to make all the difference over that which we can measure. I know there are formats and media out there that measure better then what I like, but I also recognise that there are things that cannot be measured (yet?) and I feel what I like has subtleties that other media has missed. I can't prove it I can only experience it, like anyone who feels they have made a great discovery I will try to convert people and often to do this you need to "speak the language of the buyer" and this is what has led to compressions of measurements that may not be the true defining factors of enjoyment, but simply the only things we have the ability to analysis and understand. I have opinions on all sorts of things related to audio based off the aspects of it I can study, but I still firmly believe that the experience is what matters, regardless of how you do it. Just don't let current data put you off trying other things, maybe things that are not so great on paper hold subtle secrets that could make all the difference. LUCK
  4. yogsogoth

    Old 3 way speakers

    While that certainly is less of a mess, I still don't think it's correct. The crossovers in the speakers are not using the effects of a lone capacitor. Certainly not in such a simplistic way that you just add the ESR to the speaker coil's impedance. Rob. I am not sure what ESR mean? I hope I have not missed a point here but I will rave about crossovers anyway :) It can be just that simple(as a single capacitor), ask many DIY audio enthusiasts, and they will tell you that a 1st order crossover is the best option. In reality they are rare, this is (as far as I can tell) due to the slow roll off of the 1st order crossover, at 6dB/octave it leaves a big section of the frequency spectrum to both drivers and blending is harder than a more "codified" approach, where a driver only works with the frequencies that it is good at. A 2nd order crossover rolls off at 12dB/octave, 3rd order at 18dB/octave etc. I don't use any crossovers (as in a circuit, there is another concept, the acoustic crossover in effect)but that is because I have a unique set up, not one many people would be familiar with. Each increase in order makes for a more complex crossover circuit, phase becomes a consideration at some point but that is beyond my understanding. often there will be addition component s added to the crossover circuit to manage impedance. As an example I will use my loud speaker system I have rear loaded horns using a fostex full range driver, this is an uncommon config. The driver is good from 50Hz to 21KHz but it suffers in the low end because it is small , in this case the horn is designed to amplify the bass, the highs tend to not be so great when measured off axis (this is not an issue for me) so I could add a super tweeter to this config to get better highs. A capacitor would be the total extant of crossover needed , say I wanted to cross over at 13kHz, a 1.55uF capacitor should do the job. One octave is down is 1/2 the frequency so at 6.5kHz the signal will be -6dB from the tweeter, maybe a bit too high, crossing over at a higher frequency might be better. A sharper roll off can be made by using the same cap but adding an inductor in parallel to the tweeter after the capacitor (the cap is in series)this has the effect of shunting low frequencies (an inductor is a low pass filter) to bypass the tweeter leaving only highs. this is a 2nd order crossover, so at 1 octave down the signal is now attenuated by -12dB. ( I tried to draw this but I failed :() more complex and more issues with impedance I would guess. it would seem that you can make a crossover as complex as you want there is no limit to an nth order crossover but more components do reduce the efficiency of a system and that stuff about phase but I can't get my head around that atm. In conclusion; I would say it can be as simple as reactive cap in series but more often it will be more complex due to the limits of drivers and the need to control total circuit impedance
  5. yogsogoth

    Old 3 way speakers

    Explain it to me then! I consider myself a noob in this field and I take it that you do as well. So what if the OP has sorted their concern, the debate, the sharing of ideas is still active, it cannot hurt to have more information on the subject. Drivers are complex and speaker systems get even more complex, the best most of us can do is break it up into chunks that we can understand, if you can bring it all together for us noobs then I beg you do so. So far I have not found a single www article that can bring the entire concept together for me. If you can pull this off you may just get your 5 minutes of fame. Come on! Impress me!
  6. yogsogoth

    Is it real, photoshopped...or an act of God?!

    Apparently it was taken in Sudan in 2005 by ADF personnel.
  7. yogsogoth

    Old 3 way speakers

    Err, that's just a mess. For starters, capacitors are measured in farads, not in ohms. Rob. ........and this is only the start of it............. http://wiki.xtronics.com/index.php/Capacitors_and_ESR Err, I can't tell if you are having a dig at me as well LogicprObe. A capacitors capacitance is indeed measured in Farads, but they do introduce resistance into a circuit and resistance is measured in Ohms. In fact it is this property of Capacitors that makes them work as high-pass filters. The phenomenon is called "capacitive reactance". The resistance of a Capacitor will change with frequency. It will behave like a frequency controlled variable resistor. WHAT, holy fuck like a resistor measured in Ohms It is very simple to calculate the reactance, and plot a nice graph with a sweet curve. Xc=1/2πfC Where; Xc=Capacitive reactance f=frequency in Hertz C=Capacitance in Farads capacitors pass AC but block DC because at zero frequency (like DC) the resistance is infinite. So while I can't be certain that the figures I used in my first "messy" calculation were correct, I am certain that capacitors do add resistance to a loud speakers circuit. All I attempted to do was answer one of the OPs questions seeking an explanation for the higher than expected resistance reading for 3 drivers connected in parallel. The OP provided the resistance readings of the Caps. While not a measure of impedance it did show that caps have an effect on resistance and offered an explanation to the OP for the readings taken on the speaker terminals. Impedance is just resistance with capacitance and inductance factored in. It is the capacitance and inductance that interact with frequency to change the resistance.
  8. yogsogoth

    For those who think MP3 is great.

    Thanks, just to be clear on my previous post; I am starting to lean to the conclusion that I like my vinyl over other media I have, NOT because the media itself is better but because of the way recordings were made in the past. I am not fully willing to accept that other media is better but can see its potential. I think old recording, mixing and mastering methods are just more accessible in an older format like vinyl. At least that is how I am thinking atm, who knows how my ideas will devlope in the future. Luck
  9. yogsogoth

    For those who think MP3 is great.

    Looking back through this thread and at the suggested problems with music, I would say Blu-Ray audio would not offer any real improvement, at least not at the moment. The thread started with the idea the compressed digital audio robbed music of its quality, this then moved briefly to the idea that any digital audio hurt music. That idea was then countered with some technical info about the dynamic range of CDs and on paper they have heaps of dynamic range. The thread then moves on to the idea that recent recordings are heavily compressed to make them sound louder, all the sound is pushed to the loud edge of the medias dynamic range thus a modern recording released on CD is not making use of its greatest ability, its huge dynamic range. It seems lots of people, including myself think dynamic range is a huge part of the music experience. I can't see that more dynamic range and greater resolution of a media like blu-ray or even super audio CD can make music better if these features are not utilised at the mixing and mastering level. In the past I would have told you that vinyl was the best media to listen to music on, now my view is shifting a little. I think I love vinyl (my vinyl) because of its age, most of the albums are from the 60's 70's and 80's, and only a handful that are more recent. These old recordings are just done better in my mind, making them a pleasure to sit and listen to. Many of the records I like to listen to are not of bands or singers that I would call myself a fan of, but the music is just so good that I sit and listen, never getting up to change the volume or skip a track. For higher resolution digital media to offer something useful the recording industry would first need to pick up its game and I guess it will not change until the consumers demand better. And now we complete the vicious circle. With so many people using portable music players and listening in loud environments (on the train, bus in the car etc) loud, compressed audio with little to no change in amplitude will continue to be popular. My advice, buy up as many old recordings as you can, the age the music is less important then the experience you can get from it. Luck
  10. yogsogoth

    Michael Atkinson does it again..

    Cool, now finding sex and violence will be as easy as going to the correct section of the store. No more trawling up and down every aisle to find the good stuff. It might not be so bad after all :p
  11. yogsogoth

    Old 3 way speakers

    Ok this is how I would tackle this. A 220 Ohm cap in series with an 8 Ohm driver = 226 Ohms A 160 Ohm cap in series with an 8 Ohm driver = 168 Ohms And a solo 8 Ohm driver. These three "groups" are wired in parallel Some math a got from the web R total = 1/(1/R1 + 1/R2 + 1/R3 + ....) for this to work we need common denominators and this is where I may fuck up I picked 37968 So R total = 1/(168/37968 + 226/37968 + 4746/37968) = 1/(5140/37968) =37968/5140 = 7.386 Ohms Please keep in mind I am not an expert here just an interested party Luck
  12. yogsogoth

    For those who think MP3 is great.

    Spot on in my mind. Like that guy said, many people for the past 10 years or so have only heard music in mp3 format. I guess people can only rate things that are part of thier experience and if mp3 audio is the best that they have experienced then it will rate well.
  13. yogsogoth

    Advice on a sound card/headset

    I love you so much I will hump your leg form free the souraund sound formats are nice but only work in a well set up space, most people do not have this space, and as such a good stero set up is best.
  14. yogsogoth

    Not exactly high fidelity...

    How cool? Very cool, dare I say: A speaker that matches the mass of the air it seeks to move is a big deal. dynamics and fidelity are idea that tie into this and are why drivers with lower "moving mass" are sort after. Big throw woofers serve a purpose but fail to move large amounts of air in a truful way. They move it, but they are assuming all the time. At the moment plasma only works in the high end of the frequency spectrum, a position that all ready seeks to lower the mass do the driver. It is done here because it can, but the idea applies to all drivers, just tech has not got there yet. My simple theroy (for any one that may care); Sensitivity of a loud speaker is key. The higher the better Quality amps are easy at low out puts High out put amps are easy at low qualities High out put at high quality is hard (super high end stuff) Any thing that improves speaker efficienticey helps most of us have a better experience with music. Plasma speakers are a great turn in the loud speaker tech, maybe not the final solution but the sort of thing that will drive the competition to do better with conventinal materials. Love you all Yog
  15. yogsogoth

    Not exactly high fidelity...

    bumpage is not my style normally, but this is too cool not to have some sort of talk on the matter. I thought I seeded enough to spark some sort of comment but I was wrong :( Options; Ozone- really threat or paranoid commie BS? compliance- real benefit or social scam? pretty pink flame- real or proof of god? only you can force me to dig through the net for supporting arguments. Love yog