Need help with making an amplifier

First of all I am only considering to make this amplifier I have not gone out and brought any parts yet although I have had a look around. If all goes well I will post an instructable of all the stages required to construct the amplifier.  I am looking to make an amplifier to be used with my computer and various other devices. This is the amplifier schematics I have had my eyes on.. I am new to all of this really but Ive been trying hard and eager to get this working.  Amplifier http://www.circuitstoday.com/2-x-60-w-audio-amplifier-circuit  I have designed this on Eagle PCB, need to double check the connections. Would be useful for some info on the width of the tracks as this was the element I was most unsure about. I am new to Eagle PCB so im not familiar with standard conventions and tricks.  Pre-Amp http://www.circuitstoday.com/passive-tone-control-circuit I have designed this on Eagle PCB, on a separate board again need to double check the connections.  Power supply  I Have got a basic 35v+/- dc supply schematic, it is based on a toroidal transformer, will probably need a inrush current circuit doing later. I have added the power supply components on the same board as the main amplification stage.  Frequency Crossover I have an idea of what I want to use, I was think a 2 way 2nd order Linkwitz Riley filter because I dont want some of the areas of the midrange to be lost, from what Ive seen on graphs, the low pass and high pass dip significantly closer to the crossover frequency. Ive selected some drivers that I liked. The tweeter has an impedance of 8ohms and a frequency response from 1.6khz to 20khz. The woofer has an impedance of 8ohms and a frequency response from 30hz to 4hkz. I read somewhere that it was ideal to crossover exactly in between the two i.e 2.8khz, let me know if you think otherwise.  Also Ive read up a bit on L-pads, would it be suitable/ worthwhile in this application? is it necessary to have the impedance seen by the amplifier constant, if so where it be? Ive looked up the components on a website supplying crossover and audio devices, there are many types of inductors and capacitors I am not entirely sure which type would be most suitable.  If somebody could help me out in designing the amplifier and understanding how all the circuits could come together I would really appreciate it. I  would definitely do an instructable of the construction of all the stages of this amplifier. Thanks in advance. 

Posted by Jarez Patel 6 years ago


The Sounds of Pi

This is a rather interesting website... It converts the first 10,000 digits of pi into sounds.Here is the website!It will come up with some keys. You then select a note for 1's, then one for 2's, then one for 3's, and so forth. It's hard for me to explain, just give it a shot. There are instructions on the website.

Posted by its a lion 10 years ago


Seems it is possible to blow an amp

Well, apparently something is wrong with my sub amp, not the sub itself, at least it doesn't sound blown to me. But it definatly does sound different than last time I used it and there is a slight growling sound you can barely hear if you turn it up to a certain point, almost like the voice coil rubbing but a softer sound as I do know what that sounds like. Time to chuck the amp eh?

Posted by Punkguyta 10 years ago


Request: Sound canceller / radio frequency canceller

Request: Sound canceller / radio frequency canceller. Here's the sound canceller, which is prices at around $30,000 Euros, and powers itself. (using radio frequency) http://www.digitaltrends.com/wp-content/uploads/2013/10/sono-technical-setup.jpeg Aditional request:  Radio Frequency canceller.  Ideally it would be something similar in concept, but would be able to cancel specific ranges also. Thanks.

Posted by WyattsAccount 4 years ago


iPhone charger connection to sound?

How do you connect an amplifier to amplify the sound through the charge connector and still be able to charge the phone for an iPhone4 instead of using the headphone out to amplify the sound?

Posted by bricabracwizard 6 years ago


DIY Sound Bites (hasbro)

I used to have this product made by hasbro called Sound Bites. It was essentially a musical product that transmitted sound through lollipops. Evidently the jawbone is an amazing conductor of sound. I was wondering if anyone could think up a way to make something similar with a 1/4" jack. I think the potential for high fidelity sound is great. In addition its also similar to the bone conductive headphones that many people are using for underwater music listening.The product looks like thishttp://a2.vox.com/6a00d09e7bc293be2b00e398a4ae720002-200piHere is an article on Sound Bites.http://old.thing.net/wwwboard1/messages/683.htmlIf anyone has any ideas, I'm quite mechanically and electrically educated and would be very interested in putting something together.

Posted by sharpiemarker 9 years ago


Toy Gun speakers, or premade circuit with sounds effects for charging

I am making retro-50's laser gun and want it to make a charging sound when I "turn it on", before I fire it and maybe even have it make a retro sounding laser shooting sound.  However, I have been unable to locate pre recorded speakers and circuits. I have looked at toy guns, becuase the size would be about right. I need it to be smaller and fit inside a smaller cavity. Does anyone here know of a place to buy such an item?  Do they even exist? Or is their a way to record sounds and then have them playback using a simple triger method. Thanks, Bonnonon

Posted by Bonnonon 7 years ago


Who is your favorite of the Sound 5?

Who is your favorite of the Sound 5 and why? In case you forgot, they are Jiroubo, Kidomaru, Sakon, Tayuya, and Kimimaro (i think that is the order of appearence).

Posted by gaara_rox_forever 9 years ago


Ads with sound suck

just saying... Especially when they start up by themselves. Why would anyone want this?

Posted by dvboy 7 years ago


Acoustic Levitation?

I want to know if anyone knows a way to do this at home. Acoustic levitation is a way to levitate objects in space using sound waves. That site gave a very thorough explanation of how it works, but not how to do it. If someone knows how, I'd love to see an instructable.

Posted by ultrauber 10 years ago


Portable 5.1?

Hey guys, I've got a set of 5.1 speakers from an old non functional home theater system that I'd like to make into something portable, maybe even able to play sound from an iPod or computer. However, I'm a complete newbie to sound equipment and wiring, so does anyone have any suggestions as to how I could go about that? I know I'm not going to keep the 5.1 effect, but just having a portable system with that kind of power behind it would be pretty cool. Thanks in advance.

Posted by AAdaman 10 years ago


Mystery of the CO2 Balloons!

Filled some balloons w  co2  from dry ice in a soda bottle.   As expected, they act like a lens, a magnifier of sound. No mystery there. Just as a dense glass refracts light, the denser gas refracts sound. The mystery is why balloons filled with co2  leak down faster than identical balloons filled by mouth. Yes, there is some co2 in my exhaled breath, but it is mostly  n2,  and  o2.  I would hav expected the n2 and o2 to leak out more quickly, being smaller molecules. So whatzup wit dat?

Posted by Toga_Dan 3 years ago


Help needed: electronic light/sound gadget

Hi guys, I'm hoping someone can help direct a complete newbie. I'm a magician trying to build a gadget that looks like a steampunky-science-device. I'm working on a routine like this one: https://www.youtube.com/watch?v=GTikFSOBIA8 If you go to the 09:00 mark you'll see it in action. I bought the instructional DVD from the man in the video which supposedly includes instructions on making the gadget, but although he explains the flash-paper-ignition part clearly he doesn't even touch on how to make the lights and sound. I'm fine with woodworking, soldering etc. but I have no clue what pieces I need to buy to make flashing lights, squeally squawky adjustable sounds etc. If anyone can tell me what parts I need and how to string them together, or where to go to find suitable instructions, I'd be very grateful.

Posted by MalcolmR15 1 year ago


Building a sound reactive lightbus/module visualizer

Hello fellow instructables.com dwellers!!I am wanting to do a case mod with a window of frosted plexi glass and have LED lights behind it for show. I also want to be able to make them dance to music or whatever goes through my soundcard and cannot find a good instructable for this.What I understand is that you need a sound reactive module hooked up to your lights and have seen these things for sale on ebay, but no info on how to build my own.here are some links to videos who us this tech in lighting:LED visualizerexternal cold cathodsON A DS!!sunbeam lightbusmorelast oneSryy bout all those links : )So if anyone can help me find a DIY guide for something like any of these, or any info that will prevent me from having to buy one and have no idea how to mod it. Thanks to everyone who replies in advance, and wish me luck.

Posted by The Jesus Panda 10 years ago


I've made a Nyan Cat Arduino Code

Everyone just check the instructable to download the code https://www.instructables.com/id/Nyan-Cat-on-Arduino/

Posted by geo bruce 7 years ago


Sonic data transmission?

This is just an idle thought, but I was reading a couple of ROV builds, and the one thing they all have in common is a tether - it's a fact of the world that very little in the way of radio signal can penetrate water. So... Could you send control signals to an ROV via sound or ultrasound?  Could beeps and clicks carry enough data, far enough, and clearly enough, to control an ROV? Even more fun, how much data could come back? Sensor readings? Images? Just throwing it out there for you to toy with, but it would be fun to have genuinely-remote control for this class of robot.

Posted by Kiteman 2 years ago


Sound proofing shelf frontage help

I was wondering if any of you had any advice for the front of a whole wall shelving unit I am planning on building (and the shelves as well if you have any suggestions). You see, although there is a cavity wall between this room and the next, I am wary of a noise complaint as it is a different flat’s bedroom. I will be using it as a music production room and ideally want decent acoustics as well as adding an extra these extra layers to stop leakage. (I’ll draw some pictures and upload them to clarify what I’m saying)* Two things I’ve been thinking about using: 1.  A high-density curtain hanging in front of the whole unit. While this could possibly deal with the main issue of a noise complaint better than the next idea, I’m worried it will create a bad mixing environment with a really ‘dead’ wall behind my speakers. 2. Hanging, sliding acoustic panels using egg box foam under a sheet of fabric. This will look like a normal acoustic panel with the fabric pinned around a timber frame. I was thinking of forgoing using any sheet wood so I could hang a piece of high-density carpet/ fabric at the back and not have the panel too heavy. The wall measures about 3.2m W x 2.3m H so I was thinking of using three, maybe four hanging panels. It’s my understanding that a hanging panel would absorb more energy from the sound waves than one on wheels or in a sliding track. To hang the panels the main idea I had was to use metal tubing (uncertain as to what material to use, conduit?). With the three panels, I would use two main lengths of it one on the same height, parallel to the other, with the distance between needed to stop the panels on either track hitting each other. From above or below it would look a bit like this U=====U (sorry if this doesn’t translate to your device well… See pictures) with the ends of the U going into holes drilled into the wood, extending as far as the shelves will be deep if needed. With four I would just have two sets of the same but smaller. Sorry if this doesn’t make much sense, rushed off me feet at the moment. Many thanks Jay *Sorry the pictures ended up pretty awful, just moving in, need a proper table…

Posted by JWL94 11 months ago


circuit: 100+ sound bites activated at random by switch

I'm looking to make a basic circuit that plays 1 of many sound bites at random each time the circuit is closed. Any schematics out there?

Posted by Nando_Kommando 9 years ago


Ever heard of a Pyro Board? Look it up.

Hey guys, just wondering, theres this really cool thing called a 'Pyro Board', and i've looked ALL over the internet and i couldn't find anything on anyway you could build it, so, as a last resort, i decided to see if you guys could wip anything up. i'd really appreciate it. (im hoping to make one before my 17th birthday in june.) but yeah just search 'Pyro Board' on google and you'll get a ton of vids, theres really only one, but yeah, just wondering how to make the actual metal box contraption thingo. PLEASE try and make it!!! it's urgent, lemme know/ keep me update. :) thanks

Posted by Just4Lolz 6 years ago


Modding the sounds of a toykeyboard

At the current moment, I am in possession of a Casio Rapman (with VOICE EFFECTOR) that is in pristine condition. At the moment, my question is how would I go about changing the sounds of the different settings for the keyboard in order to make a 4-bit chiptune set  instead of the early nineties vision of what things should sound like. Anyone know their stuff?

Posted by DVD Player 7 years ago


Piezo analogue sound

Hi all. I am a newbie and this is my first post so i might be barking up the wrong tree here. Would it be possible to use one of those small piezo-ceramic speakers to play sound e.g. from an mp3 player headphone jack? i am not looking for great quality sound, only voice quality, but i needs to be fairly loud. Many Thanks, Bob

Posted by saiorse44 11 years ago


Sound Sensative LED

I wanted to make an LED board that I could wear on my shirt or hat that can sense bass sounds (like in and around 80Hz). I play House music, and it would be an awesome visual aspect, and wondered if someone had an instructable on it. Thanks

Posted by ColinMcNutt 11 years ago


Small animals levitated by sound

If anyone is looking for an advanced cool project, here it is: Acoustic Levitation. Scientists at Northwestern Polytechnical University in Xian have used sound waves to levitate small creatures while they are still alive, without causing them any apparent harm.

Posted by ewilhelm 11 years ago


Needed sound fx and voiceover Animation programs?

Firstly I do not want a complicated or high end professional stop motion program. I also do not want to spend more than say $80 dollars. I want it to have sound capability such as sound fx and voiceover. I do not want to have to export to another program to add sounds. It is for windows use by the way not mac.I will be using it with a Logitech Pro 9000 webcam.All your suggestion helps me to take decision !!

Posted by johnmartyn 9 years ago


Advice on removing rust fron inside sound card jacks?

I have a nice sound card from a friend which has some mildly rusty contacts, which I believe is the reason it no longer works. Any advice on cleaning in and around the jack?

Posted by mikesty 11 years ago


Sound Circuit

What I want to do is set up a switch so that every time it is toggled, one of two sounds are played on a speaker (which I also don't know how to connect). How would I go about doing this? This is for a homemade Aperture Science Handheld Dual Portal Device.

Posted by elementcollector1 7 years ago


Linux movieplayer / Rythem box sound problem

Having an issue with linux music playing when I pay songs in movieplayer they play perfect, when I play them in rythem box there like half speed and loud fuzz blocks out most of the sound whats the deal?

Posted by chaoscampbell 10 years ago


Help with Circuit Board

The effect light below is supposed to sequence the lights on and off, one at a time, in response to music (sound). Well it does that, but not until the input is around 95 - 100 DBs. I'm trying to figure out what to replace so that it responds to sounds at lower DB levels. The left knob on the rear is for sound adjustment (worthless at this point), the right knob is the chase (sequence)speed. The sound is set to max and the lights still doesn't respond until you really crank the music up. CN2 is where the sound and chase controls connect. It's wired, left to right as follows 1 - red from chase knob 2 - yellow from chase knob 3 - red from sound knob 4 - yellow from sound knob 5 - blue from sound knob The pin block in front of CN2 is power and the other block goes to LEDs on the rear of the unit. I'm trying to figure out what I can replace to make this more sensitive to sound input. The mic isn't the issue, I've tried several and even directly wired headphone input into it and still had to crank it up before it would respond. No comments on my soldering butcher job on the back. The red wire is the positive to the mic (which should be in the burned out hole to the left, but it works there - no better, but no worse) Any thoughts at all on what I could play with to make this thing respond to sound a lower levels would be greatly appreciated.

Posted by BradWhite 11 years ago


how can I make a cricket chirping sound w/o electronics?

I'm trying to figure out a way to produce a realistic cricket chirping sound, using something mechanical (i.e., not electronic).  So far, I'm not having much luck.  The only examples I've found of what people are calling "cricket noisemakers" are either big carved wooden cricket-shaped toys with a serrated part that you rub a stick against (which doesn't sound remotely like a cricket) or the WWII metal clicker that was called a cricket, but sounds even less like one. A cork twisting in a tapered wooden hole produces a squeak, but crickets use "stridulation" which, if you slow the sound down, is actually comprised of about 6 individual tones in rapid succession.  That's a complication I'm still trying to wrap my head around. Any suggestions? Point of reference: https://youtu.be/CQFEY9RIRJA

Posted by Bricology 2 years ago


How to make one big battery out of several batteries (car/motorcyle/deep cycle), for a sound system

Hey everybody, I need your help on building a single battery out of several smaller batteries for a sound system in a particular environment that forbids the use of a fuel-powered generator and where electrical networks to plug into are absent. For now I'm just researching various portable batteries and think deep cycle ones are probably most adapted to the needs of a sound system running for 8-12 hours, but the only working example I've heard of so far is made up of several motorcycle batteries. I'm really starting from scratch and reviewing all my old electronics classes which I've never so far had to put into use, so bear with me :) I'm really keen on learning. As an indication, the sound system will be small with two high/mid built-in amplifier speakers and a woofer. Probably will need to run a few lights/lasers, that sort of thing as well, but that'll be a bonus. Thanks in advance

Posted by Objektiv 10 months ago


xbox through gmail and aduino

I was thinking of way of playing xbox through gmail voice and video chat no software no changes  the way  i want  this to work is  by the arduino talking through the sound card on a player side to the xbox side(  through  gmail voice and and  video chat) arduino on xbox side will be hook up to a hack xbox controller (showing on photo) and have a USB to video thing which will give the player a view of the game play and the sound will be hook up to the computer(xbox side) so the player can hear what going on. hope people will like this and please be nice      

Posted by act casual 6 years ago


Stream to speakers?

Is there anyway to make it so my macbook wirelessley streams whatever music im playing to the speaker set in my room. I have a macbook and a fairley new speaker set, i think the kind of thing id be looking for is a slingbox. any suggestions?

Posted by astrozombies138 10 years ago


i blew a channel

I had a 2 channel mini amp and i blew one of the channels, that sucks, any help? im using it for camping an need some tunes, that would be kool. oh yeah, check out my bird, he's so kool.

Posted by Yerboogieman 10 years ago


I need to rig a chest to play a recorded noise when opened.

Howdy folks. I have a bit of a conundrum. I know exactly what I want but I'm not so sure how to get the pieces together for it... or even what pieces I might need. The plan: Take a chest I have and install a speaker in it, attach it to a button and something recorded with the little ditty when you open a chest in Legend of Zelda. Do do do doooo! I have the chest and the sound. That was the easy part. The rest is getting the hardware I need and installing it. And my promise: if I get going on this, I'll post an instructable with the how-to. I searched and searched and didn't find one on here which kind of surprised me! But anyhoo. Um. Help?

Posted by MoogleLally 8 years ago


Plasma Speaker Kit

Hey Instructables, We're StudentRND, a group of students in Seattle, WA that build cool stuff over the summer. We've taken our time over the summer to build a plasma speaker, and now are offering kits on Kickstarter! (As seen on TechCrunch and Physorg) What's a plasma speaker? It uses an electric arc to vibrate the air to play music! View the Kit <br>

Posted by studentrnd 6 years ago


Arduino intruder alarm modification

We have a professionally installed burglar alarm system that dials out (over a dedicated landline) to a monitoring station when an intrusion is detected.  I'd like to modify it to send us an SMS (via the mobile phone network) and/or email (via wi-fi on a different landline) as well, just in case the phone line is cut, and to make sure we get notified immediately - the monitoring station tries to call on the landline first, then it calls our keyholders and the police, which all takes time.  If I'm 5 minutes away and the alarm is triggered, I'd like to know straight away so I can rush home. The alarm company have quoted a huge sum to make this change, because an updated control control panel would be needed to deal with the texting/emailing.  I can't go cutting into their system or it will invalidate the maintenance contract, so I need to pick up when the alarm is triggered without any physical connection.  Short of remotely detecting a current in the cable to the siren (a 12V DC signal, so how would I detect that?) it occurs to me that using Arduino to listen for the siren might be the best bet.  But I'm an Arduino beginner and I have no idea whether it would be better/easier to detect a noise over a certain threshold - the siren is very loud, but the noise from the adjacent road can be pretty loud too - or to try and detect the particular sound frequency of the siren.  All suggestions gratefully received. 

Posted by Yorkshire Lass 2 years ago


Using Sound from Phonecalls as Trigger for Computer Game

Hello people Can anyone help me with an idea please? I am wondering if it would be possible to use live audio from phone calls to trigger actions in a basic computer game. I know that I can use sound input to trigger actions in Flash for example, but I do not know how to route audio from a phone call into the computer in the first place. Does this sound doable? If so, how could I achieve this? Thanks in advance... Daniel

Posted by playlab 7 years ago


Computer sound just stopped working?

I was listening to some music on my computer. I changed the song, and the volume stops. I change another song, nothing, I go to YouTube, and still no sound. I check my volume controls, all good. I plug in some headphones, still no sound either. anyone have any tips for me? I google'd, but i got like 1 billion results.... Please help me. =[

Posted by wolf555hound 9 years ago


Toilet Makes the Super Mario Bros. Warp Pipe Sound When Press the Flush Handle

I thought the games forum might like my Warp Pipe Sound Effect Toilet. Please rate it and vote if you like!

Posted by yardleydobon 6 years ago


Acoustical Question

Is there an acoustical property that makes sounds seem like they're coming from a different source? Like say I have a box 5 feet in front of me. I trigger the sound, but the sound doesn't seem like it's coming from the box, it seems like it's coming from the left/right/behind. Any ideas?

Posted by Jackhole 9 years ago


ICStation Sound Level Indicator LED Lights-Colored LED Lights Go With the Music

Hello friends, ICStation Team introduce you the wonderful product which Research and Development Department have developed recently:ICStation Sound Level Indicator LED Lights.You see that is very interesting!The number of LEDs which will be lighted are different from the sound level.The higher level of the sound and the more LEDs will be lighted.So amazing! You could know more details through the pictures and video uploaded as follows. Another feature is that there is QR code on the back of the product. You can scan the QR code to see what information you will get. Specifications     Size: 52mm*75mm     Installing Hole: Φ3     Power Supply: Powered By USB (The input cannot exceed 12V)     Power Consumption: Max. 2W (Output: 5V, All LEDs are on.) Note: The microphone is more sensitive to the high level of the sound, but not the lower level. The video to show the effect

Posted by ICStation 4 years ago


Post a Sound on how you pronounce arduino!

Post a .wav or .mp3 on how you pronounce the name arduino! If you people want , I will post me saying it too(in a sound file). I pronounce it like Ar-Dwinn-Oh, I Uploaded an .wav Look below IF you post be sure to include a sound of you saying it ;)

Posted by ReCreate 9 years ago


Guitar amp doesnt play sound in headphones when pluged in.

Hello, so I have a Orange amp, the crush 20 rt model and it plays just fine. When i want to play the sound to the headbphones it doesn't play. There is amp amp plug and the headphones plug, next to the headphones is the aux where i plug my headphones, but when i play, the sound doesn't go to the headphones. Any solutions? Also sorry if there are any mistakes in my engrish.

Posted by BacharH 1 year ago


audio spotlight?

Any one know how to make one of those sound from ultra sound gadgets? I saw an instructable for a kit once but I can't find it. thanks in advance!

Posted by clasic_traveller_diehard 9 years ago


Replace sounds on greeting card sound module

Hello, I recently purchased this item from ebay. It's a "30s Light Sensor Record Device Module Music Box Sound Chip For Greeting Card" It comes with a pre-recorded happy birthday song. Now I want to change that song and I am pretty sure it can be done somehow, because I can see some connections available, except I am not sure what they mean and how to use them. The seller responded that there is no documentation and if I want certain sounds I have to send them the files and they will record them for me before shipping... which is ridiculous... I want to be able to change the songs when I please. The connections marked on the board say: TG1 TG2 TG3 GND VDD PW1 and PW2 Any suggestion could help.

Posted by danielpreda 1 year ago


Experimental sounds/music

I'm just curious about the people out there who are interested in ambient/experimental music and creating their own. What programs/microphones do you use? What things do you find yourself often recording? Do you manipulate the way your recordings sound to achieve a certain sound? I've just started recording with Bi-Naural Mics. When I want to do field recordings, I use I mini disc recorder. I offer all of my works free to listen to on Jamendo (maybe I should make an instructable on that site)!

Posted by ArisenProdigy 10 years ago


Surround Sound Help(connection to an Xbox), and my dream media setup

I couldn't decide what forum to put this in(since surround sound could also be a Home thing), but i decided that Music would be best. Basically, I bought a $79 Logitech surround sound system a few weeks ago and hooked it up in my room. For the money, it's pretty awesome. The sound is lacking though, it's fine, but the frequency response is anything but linear. Some songs are more noticeable than others. Either way, I've been looking at the Logitech Z-5500 THX Certified surround sound speakers. BTW, all these are 5.1, not 2.1 sets. The reviews on youtube and elsewhere give it 5 stars, and some go as far to say that the sound matches $500+ units, saying its the best midrange speaker system around. The ten inch sub is appealing too(movies- watching The Patriot would become just that much more real because of the explosions). Reviews say that the satellite's sound is sharp, clear, and pure, no static or buzz.That's definitely a big deal to me. So yeah, the Z-5500 set is $300+...and the others were $79...I think it's worth it to someone who praises music like I do. If you listen to music occasionally, then you might not get where I'm coming from, but I listen to 3-6 hours of music every day, sometimes more. MY PROBLEM:I already installed the surround sound(the cheaper one) in my room, and it would be retarded to get another set. Not to mention a waste of time and money. I need money to buy the nice set. So, my brother agreed to buy it from me if I install it for him. He wants it to be hooked up to his Xbox 360. Good deal. However, I don't know what kind of output it has. I think its a Toslink Optical Audio output, but I'm not sure. The "receiver" on the sub has three inputs, a black 3.5mm female input, as well as a orange-red and light green input of the same type. These are the direct analog inputs to the speakers; it was a cheap set so they don't have an optical in.MY QUESTION:Assuming that my brother is still interested by the time I have the money to buy those speakers, do they even make a Toslink Optical adapter that will work? I tried google, but I wasnt sure what to search for. Thanks. Also, if anybody has the Z-5500 system, let me know how you like it!My hopeful media setup:Dell Inspiron 1501 laptop with vista2TB Mybook External hard drives(two 1TB drives, either in a RAID setup or not, idk)Videosecu VGA to Component Video adapter32" TVCreative Sound Blaster external 5.1 surround sound cardLogitech Z-5500 5.1 surround soundDream setup:Mac Pro with dual monitorssome kind of adapter to get the video to the 32" TV aboveSame surround soundSame hard drivesSome kind of surround sound cardBasically the only difference between my (hopefully) future setup and my dream setup is the couple thousand $$$ of Mac and Apple stuff. Apple is so much better, but it comes with a price most of us cant afford. It's really too bad lol. For the first setup I only need the hard drives, the surround sound card, TV, and the surround sound to make it complete. Of course, theyre the most expensive parts...darnThanks!

Posted by John Smith 8 years ago


music lights idea

Well I've been working on this project for a while now and the design has changed many times. I have also asked several questions based on the ideas. My latest idea is to make 3 different sets of lights flash to music using the 3 outputs of a 5.1 system on a computer. I know this may sound confusing but what I mean is the orange, black and green outputs which control the rear, front and center/subwoofer of a 5.1 surround system. Do you think this could work? If so then I suppose I would use just the right channel of each and possibly the ground connection (not sure whether I need it). Also if using transistors to make an electronic switch turning the lights on and off, would I need amplifiers? I only have 1 at the moment and even if I could get more they would almost certainly be different. If you know the answer to these questions please help and even I am successful the I will create an instructable on this. One more thing: Does anyone know whether the center of the center/sub connection is the tip or middle of the jack? Thanks, Jim

Posted by pyro-jim 9 years ago


Exelent Bay Area Tech and Art Resource!!!!!!

I am in charge of the electronics section at urban ore, i welcome all of the Instructables community to come and use all of the weird esoteric tech i have laying around. you name it, i have it or will get it soon. I used to teach electronics in the arts at SF state and can help with problem solving your project mention this forum and i will cut you a deal on what ever you need. Andrew

Posted by bramerandrew 8 years ago


Audio triggered by motion sensor

Hello, I am an artist and want to do a sound installation. Basically I want a movement sensor that activates sounds. There will be about 15 different sounds and each time someone passes by the movement sensor will activate a different track. Can you help me with that?!?!? I need to know how can it be done!!! Thank you Fernanda

Posted by fernandaxr 10 years ago