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silvertonessuckbutigotone

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Everything posted by silvertonessuckbutigotone

  1. ok so i got everything working and all. however, there is a clicking/popping noise when the 555 oscillates. I know the popping is coming from the 555 circuitry and not the op amp circuitry because when i unplug the LED and just have the 555 simply oscillating into nothing, he noise still is there. electronically the only thing connecting the audio circuitry and the 555 circuitry is the power supply, I have a feeling its noise from the flip flop of the 555 or the transistor turning on and off. I cant figure out how to get rid of it though. This is how I have the 555 set up. For Ra I'm using a 1K, and for Rb I'm using a 100K Pot. For C I'm using 10uF. I'm using pin 3 for the output. If anyone has ideas, please let me know. Thank you, your help is appreciated.
  2. ansil did you find a way to change the depth in the LED LDR circuit? I've got mine to where it basically turns the volume completely off but for some reason i cant figure out how to set it to a specific depth. The way i have it hooked up is in the inverting amp i have the photoresistor in parralel with the feedback resistor.
  3. so for some reason the transistor method stopped working, and i couldnt quite get it back to what i wanted, i might have accidentally wired it wrong in the first place and gotten the outcome desired. So, on a whim i decided to try the LED/LDR combo instead and in fact it worked and i was planning on testing my circuit anyway so i had my guitar and amp already there. it works great and i'll probably finish the dessign process tommorrow and then start soldering it up. I'll post some sound clips as soon as i get it together in a box etc. I'll also make a schematic for you guys eventually.
  4. There is actually an uncommonly used output on pin 6 or 2 (in free running astable mode, 6 and 2 are connected together) that is a triangular wave. Thats why I will be using a switch to control the shape of the wave. I think I will get use out of both shapes equally. LK, what do you mean use the transistor as the groudned leg of the voltage divider? Could you draw up a schematic so I get what your saying.
  5. yeah you could do some intricate stuff with it if you got into binary counters and logic gates, i technically could get into that, because ive built a circuit for timers, and counters, that incorporated the counters and gates, but i have to get this project done by friday, working at most about an hour and 15 minutes a day on it. That means debug it all, expand it to my satisfaction, and transfer it to PCB in about 5 hours total. By then I should be able to incorporate the switch to toggle between square/triangle waves, and get the signal back in phase, and incorporate the potentiometers to adjust it all, but I don't think I will be able to add a whole new chip, let alone two or three. But nevertheless I would be interested in reading up on it. Shoot that link my way. Edit: Sorry Paul, I was in the middle of my post when u posted. Yeah, I plan on bringing my guitar into school on wednsday to test it, but it should work the same. I don't really know much about a guitars signal, but as long as its an AC signal, at line level, centered around ground, then shouldnt the concept carry on and have the same effect? The thing I'm worried about is my amp doesnt have an effect loop, and I don't really want to risk messing up my amp by modding it to put one in. So when im using it with my amps distortion, you won't be able to hear the tremolos effect so much as a change in the distortion level, unless you make the depth huge. Does anyone have a solution for this? The reason I used a 555 was at first I was going to do an extremely simple and sketchy version of a tremolo effect using a relay switch, and running the signals in paralel to affect depth, it was horrible, and with some thought I came up with the idea of changing the feedback resistors value using a transistor. That allows me to get much more diversity out of it, and its solid state rather than mechanical. I also saw a tremolo schematic on another website (i think it was small bear electronics) that used a 555, but I didn't just use that schematic, because I'd rather get some experience coming up with the ideas on my own, rather than just copying someone elses ideas. Once I test it using a guitar I will let you guys know how it turns out. Thanks for the comments.
  6. I still have yet to figure out how buying the t shirt supports a local garage band. Eh?
  7. i would classify tool as modern mainstream rock. by mainstream i mean stuff that gets airtime, not necessarily "bandwagon" stuff, but just stuff that a lot of people like.
  8. So, I'm in an electronics class at my school, and we're building our own projects for second semester. My project idea was to use a 555 chip, a transistor, and an op-amp to make a tremolo effect. I'll try to explain it as simple as possible for those who arent as in depth into electronics as me or some of the gurus around here. So first we have a 555 chip, which oscillates (varies the voltage at a steady period) at any given frequency, depending on capacitor/resistor sizes. In this circuit we're working between say 2 and 10 Hz (1 Hz= 1 cycle per second). Since the volume of a guitars signal is determined by amplitude, and not just the level of voltage, applying the output of the 555 chip would not be sufficient for raising and lowering the volume. So in order to understand how I am going to use it, you must understand how to wire an inverting amplifier using an op-amp. http://img.photobucket.com/albums/v461/gle...ngamplifier.jpg Thats the schematic for an inverting op-amp. The inverting input (the one with the negative sign on it) is used as an input, through a resistor. R1 in this case would be reffered to as the input resistor. The non-inverting input (with the positive sign) is connected to ground as a reference. The output is connected to the inverting input through a resistor, which would be called the feedback resistor. The beta (gain, or amount of amplification) is determined by the sizes of those resistors. The formula is Ri/Rf=B. In this case we dont actually want to amplify the sound since we are working with line levels, so we would use 2 resistors of the same size (I'm using 1ks, however the size doesn't matter). So in order to change the amplitude, we have to change the Beta, and in order to do that, we must change the size of one of the resistors. But how do we periodically change a resistors size? We can't, however the voltage applied to an NPN transistor's base will change the bias, or internal resistance between the emiter/collector junction. So by hooking the inverting input to the emitter and the output to the collector, and the 555 output to the base, we are effectively steadily moving the resistance between the inverting input and output up and down. http://img.photobucket.com/albums/v461/gle...ngamplifier.jpg That is our schematic so far. As to the size of R3, we use atleast 1K, to limit the current flowing through the transistor. I have spent a ton of time trouble shooting and improving this circuit and its still in the works, I still need to test it using an actual guitar. So far all I've used is a function generator (a peice of equitment that puts out a small AC signal) and an oscilliscope (a peice of testing equitment that allows you to view the actual wave that you are hooked up to) and it seems to be working fine. The wave that the function generator puts out is basically a perfect sine wave, and the output of the op-amp is equally as smooth. Right now I'm doing all this testing on a breadboard, and eventually will transfer it onto a PCB. I will gradually expand on it and let it grow more and more intricate. I believe the first expansion I will do is sending the output signal through a second inverting amplifier because the output of an inverting amplifier is of course... inverted. So sending it through two would give you an in-phase output. Most of the time in a guitar, it doesnt really matter if the signal is inverted or not, considering you're not mixing the signal with anything, but i want to leave myself open if i ever decide to try some parralel effect tricks or something. Something I might also do is have a switch to switch between the two outputs of the 555, one of them is a square wave and the other is more triangular, so i can send it through either more sudden volume changes or more subtle ones. I will also use a potentiometer to determine the frequency of the 555 so i can go slow or fast. And of course, I will add a pot to change the depth also. Any questions/comments would be appreciated, I will probably post the final schematic, including the 555 pinouts and any switches/potentiometers I use, proper voltages and resistor sizes, etc.
  9. well its like this. if you can relate to a bunch of emo kids, because you play and like emo music, then theres a connection. then as underoath does, you can say "we play music for jesus christ because thats our purpose and hes the reason we wake up every morning and want to write music." its just like anyother form of evangelism, you have to live righteously, and once youve established a connection with your target, you reveal to them that you do waht you do for jesus, and they put two and two together, and hopefully consider it. like firefox said, i have no intention of offending anyone, i know a lot of ppl get touchy about religious issues.
  10. not bad, i definitely see the godin influence. ive always loved their natural finishes. you really have knack for this. keep it up.
  11. at my school theres not really that many emo kids, like maybe one or two. i know there are some emo "clicks" at some other schools in the area, but even there it seems like the emo ppl are trying to go against the grain, not with it. i dunno maybe my towns just weird. Primal, I was reffering to individual bands evolving, not as a whole. most hardcore bands dont stick with the same sound between 2 albums hardly ever. Like norma jeans sound changed a bunch with the loss of vocalist josh scogin and the gain of cory brandan, between "bless the martyr, kiss the child" and "o god, the aftermath." and if you look at underoaths "cries of the past" and "they're only chasing safety," the sound evolved sooo much. and then take it a step further, and take a look at "define the great line" which is due out june 20th, they kept some of the same techniques, but the sound changed a whole lot.
  12. i know what you mean, but by chaotic i meant theres no set chorus, or verse structure. we've actually sort of been messing around with it in one of the last choruses instead of doing the straight droning with the chords, have the root note alternate from the actual chords note to an open on the low D (we played tuned to drop D) in double time. it gives it the more fast paced climatic feel.
  13. thats one of the things i hate most about the recording. the drums arent high enough, and i need to add an open hi hat and kick drum along with the snare. the goal in that part is to get a really loud, raunchy, attacky, dissonant punch there. but the way i mixed that part didnt work out the way i wanted it to. drums: i used a drum machine, so its basically 2 or 3 different drum loops over and over. the real drums have much more double bass, and attack, and variation. bass: we're working on that, for now its just playing the root note of the guitar chords. the whole riffage thing: its hardcore, aka no lead instrument, aka memorable riff=minimal... i mean its kind of like the chariot and as i lay dying mixed, in that its a somewhat structured song, but the structure isnt carried out the whole song, its still somewaht chaotic. thanks for the input guys keep it coming.
  14. hey guys, so i hefty update here. the band pretty much broke up, and we started a new one (some of the same guys). we dont have a name yet so our mp3 is just being played on the old myspace. we've drastically changed our sound and we're basically metalcore now. if you cant stand really heavy stuff, either dont listen to it, or dont tell me, because that doesnt help. heres the link. www.myspace.com/equallybeingoffended constructive criticism only please.
  15. awesome man. i like the ending of the emo song. it all reminds me of steven lynch. its good stuff man.
  16. Theres a few bends that I don't think match the key your playing in, but 2 of them stick out like a sore thumb to me. Theres one at 52 seconds, and one at 1:16. My reccomendation for that, is when you're bending high like that, try going one or two intervals higher in the scale than the note your playing on, and make that your target note. So when you bend you know where you want to end up with the bend. I love the song, but like gorecki is saying, it does lack melody and with the exception of the break down at 44 seconds, its 1 dimentional.
  17. well... the only subsubgenres i put up there is punk and new wave punk, and emo and emocore. the punk thing... people do really get pissed off if you call greenday punk rock... just because everyone knows theyre no where close. the emo/emocore thing was more or less a joke from the underoath thread. and the metals... i had to seperate the main types of metal because napalm death has nothing in common with scorpions. i mainly was asking for your favorite or most recent highly listened to genres... like i listen to everything from jason mraz to zao. but my preference is hardcore, like norma jean, as i lay dying, this runs through, and the chariot.
  18. well underoath went into an emo fad... and theyre basically almost out of it... i mean did u check out the songs i talked about from their leaked cd? if emo dies... underoath wont die with them. underoath hasnt sounded at all similar with 2 cds since act of depression and the one right before it. thats part of hardcore today... constant evolution.
  19. i wouldnt doubt it. i mean, with the exception of the screaming most of the songs sound almost the same (but better) as they do on the cd. the screaming cant always be the same because you cant scream the exact same consistently... it doesnt work like that.
  20. oh, yeah i forgot about those ones. my bad. slipped my mind. is there a way to edit poll choices?
  21. Please don't respond with "SENSES FAIL ISNT EMO! THEIR SECOND WAVE EMOPOPCOREMETAL!!!!!!!" because no one wants to hear that. Just pick the genre you listen to. lol. Some people dont listen to rock. If thats you, just post what you listen to in a reply. Myself, I listen to hardcore. Some of my favs are norma jean, the chariot, underoath (old and new), and this runs through.
  22. the stuff was supposed to be released in june. its off the new album. they posted this on their myspace: i believe them. i mean, theyve changed their sound with every album that they've released and i dont think any of it was because they wanted to change their reputation. you could speculate all day, but i'd rather listen to the music instead because its amazing.
  23. ok guys so i supposedly some new unmastered and unmixed underoath mp3s got stolen from the studio and leaked out onto the internet. as wrong and shameful as it is... the stuff is amazing... u guys who are convinced that underoath is a bunch of talentless emo *insert politically incorrect term here*s i think this will possibly change ur thought process. the stuff to me is amazing. so much heavier and more core-like.
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