sound systems

Hello, who likes sound systems

Topic by The nerdling 7 years ago


Car sound system?

Hello! I am new here. I want to know if i can connect this type of speakers ( http://m.jbl.com/products/GTO609C_JBL_US ) to this amplifier( http://www.sony.ro/electronics/amplificatoare-auto/xm-n502 ) or with this one ( http://m.jbl.com/products/GX-A3001_JBL_US?skuId=GX-A3001_JBL_US&searchMode=regularProductOnly&sCatId=cat140033 )? I want to mention that i want to buy two pairs of speakers. If no, what amplifier do i need (may i increase the impedance of the speakers instead of changing the amplifier?) Thank you!

Question by xangel 3 years ago  |  last reply 3 years ago


Multi-Room Audio System?

I have an idea for a multi-room audio system but am very much stuck with the know how. I have recently found Airfoil which allows you to transmit an audio stream over LAN to other devices, what I would like to do is have audio playing in other rooms through Airfoil Speakers but to do it cheaply, I know that I could just use other PCs and laptops to do it but it is not something I have right now, I do have two very old laptops (circa windows 3.1 & 95) but they lack in .... functionallity. I was thinking of some stripped down computer which could be hooked up to existing amps. What exactly would I need? What are your thoughts, or alternatives?

Question by bonners_87 8 years ago  |  last reply 7 years ago


Audio - headphones

My daughter runs a Pre-school and uses a small cd stereo setup. The output is a pair of mono jacks (R/L) for speakers. I am looking to build a distribution box for up to 6 headphones. Thinking of one input (from the speaker jacks using a 2 to 1 plug) The headphones are mono 1/4 so those jacks are readily available. I do not know what the output is of the stereo system is but I doubt it is much over 5 watts (if that). Will I need some sort of amplifier? any thoughts on switches/switching jacks if not all are being used. Thanks for listening. guitar 52

Topic by guitar 52 2 years ago  |  last reply 2 years ago


Can I install a Creative Inspire T5400 audio system in my Dodge Ram 2500 Cummings turbo diesel and how?

So I have a Creative Inspire T5400 audio system that plugs into a wall outlet, I want to put it into my truck but don't want to damage anything. Any ideas?

Question by Username8888 1 year ago  |  last reply 1 year ago


Amplifier for my car audio system?

I have 4 x 30W speakers as well a 400W subwoofer....I am simply lookin for an appropriate AMP to push everything....something under $300, PLEASE AND THANK YOU!

Question by ScoobyHD 4 years ago  |  last reply 4 years ago


Connecting soft circuit sensors to a sound system?

I want to make a sensor that will cause a sound system to emit music. There are some 'ibles for making soft-circuit sensors, but I want to make it so that a speaker produces sounds when an object triggers a sensor. When somebody stands on this sensor, sound will come from a speaker. I don't have any experience with electronics but I can learn. Sorry if my explanation is repetitive.

Question by Psypomp 7 years ago  |  last reply 7 years ago


Bluetooth adapter for car audio

Dear all, I have a Skoda audio system integrated into my Skoda which has a cd reader plus a cd changer, but  only a CD button(no AUX available). I would like to stick inside the audio system a Bluetooth receiver so I can listen to music stored in my phone. The goal is to solder a Bluetooth receiver to the audio system without loosing the cd functionality. On top of that I would like to be able to change from one source to the other without having to use an external button like a 3PDT switch. Thanks in advance, Pedro

Topic by pcardoso73 3 years ago


Car Audio Kludge

I recently bought a used car. It has a radio, but no faceplate. While I could probably find a replacement faceplate or even install a new radio myself. I want to see if I might be able to DIY my own stereo out of the bits of my radio I do have and maybe an MP3 player or something. I figure the amplifier and power systems are all hanging out in the box there. So all thats actually missing is the part that acutally makes the audio to send to the amp. Anyone out there know enough about car stereo to confirm/deny my thoughts on this and maybe provide some advice?

Topic by foxstele 9 years ago  |  last reply 9 years ago


how do you set up a computer surround sound system? Answered

Hi, I recently asked a question about setting up a home audio system for the TV, but it turns out that the system I have is meant for the computer, so I am wondering how to set them up for the computer.  Do i need this?  http://www.google.com/products/catalog?q=computer+surround+sound+card&um;=1&ie;=UTF-8&tbm;=shop&cid;=13346619482042638583&sa;=X&ei;=3XKDTv7QFemPsQLJ8PnxBw&ved;=0CFIQ8wIwBQ or something similar?  If not, do I need a type of program?  I'm kinda on a budget, so the cheaper the better.  Thanks in advance! :D

Question by salomon1996 7 years ago  |  last reply 7 years ago


what do I need for home surround sound? Answered

I have this Cyber Acoustics set of speakers that I would like to set up as a home audio system, but I don't know what I need or how to set it up.  I have the main woofer, and 4 other speakers (front right and left, back right and left).  The input is your standard head phone jack.  What do I need to get to make this work for the dvd player (or other tv things)?  Or what do I need to do to set the system up?  Thanks in advance.

Question by salomon1996 7 years ago  |  last reply 7 years ago


About audio amplifier boards? Answered

I've brought TDA2030 amp board for stereo system(pictures attached). I can't identify audio input terminals. Experts please help me! 

Question by chrisjlionel 3 years ago  |  last reply 3 years ago


how to reduce noises of engine from bus amplifier system?

Hi all, I am designing an amplifier system for a bus which is serving all passengers like DAEWOO BUS at a time. this system is working good in normal case. but when driver accelerates, the sound of engine is mixed up with audio signal and causes a noise. I don't know how to remove this noises from my amplifier system. One thing to know that a common amplifier TV, and  mp3 player is used to amplify audio signals and next individual passenger will be served his headphone/ handsfree as individual headphone jack adjacent to his seat. Also all headphone with all seats are connected in parallel. I will be thankful if someone help me out in this problem.

Question by abdulrazzaq 3 years ago  |  last reply 3 years ago


How to use computer cpu audio in jack to record some music from external music system? Answered

Anyone suggest me some good way to do it.

Question by Rajkumar2506 1 year ago  |  last reply 1 year ago


Building Audio System, Have Questions About ICs? Answered

So as the title states I want to design an audio system, I purchased an old shortwave radio someone gutted, but the case is in great shape and looks really cool, would make a killer looking amp.  So a little background, I want to make a stereo amp I can hook up several inputs to and my speakers; likely a turntable, iPod, radio, and whatever else I feel like.  The radio came with a nice little 5 position rotary switch for that.  The main problem I am facing is what ICs I want to use, and what order.  I have not dealt much with audio and at first I thought of buying a radio and just putting the guts into this unit, but I thought this would be a good project to dive into audio work.  You can't learn if you don't push your bounds a bit, am I right? The first IC question is about chips like the PT2322.  There are several I have looked at that use a microcontroller for control, and I am not against using an Arduino Micro in this unit, but I am unsure of how the acknowledgment bit works.  The data input seems to just be a shift register, data gets clocked in, then latched.  Data is fed in in 8 bit strings, but then it mentions an acknowledgement bit as a 9th bit.  Is this bit for the latch, or is there a 9th bit fed in before everything is latched?  Should it be hi or lo?  As well I was looking at the commands, several commands have 7 of their 8 bits written as a *, does this mean that those bits can be set hi or lo?  I am sure these aren't difficult questions and I glossed over something important in one of the many data sheets, and that I do not use these chips with any regularity, if ever, doesn't help either!  But I like that these ICs all seem to have a 3 band tone control and volume control built into them. If I were not to use an IC controlled by a microcontroller, I am looking at using a BA3812 for the tone controls, 5 band is a little more then I need, I really only wanted 3, not 2 but not more then 3.  Bass, treble and mid range.  But I could not find a 3 band IC without microcontroller inputs required for operation, and it was not for the lack of trying.  I can handle 5 bands though, however I am wondering, should I go preamp to equalizer to the main amp, or where would I wire in the BA3812?  This seems like a stupid question to me, I feel like an audiophile is going to come along and say, "You never put the equalizer after the preamp, it always goes here or there!" or something along those lines.  As well, regardless of where its going to get wired in, since I am doing stereo not mono, I assume I will need 2 BA3812's, but the datasheet supplies a circuit for 3 Chips as well.  Which would be suggested, 2 or 3?  I am wanting to control both left and right tone controls together, so using 5 pots instead of 10, and would also like to be able to have a balance control.  I didn't see anything about balance control in the BA3812 datasheet, would there be a good way of accomplishing that with these ICs or the use of a couple op amps maybe?  I didn't really look into balance, I should have before asking questions. For the preamp the LM1036 seemed like a good choice.  I was reading into preamps, and they seem more important for the turntable then anything else.  The way the grooves on a record are cut they boost the high frequencies so they don't fade awayat lower volumes or something like that.  Because of that a preamp that boosts bass and cuts treble is useful and improves sound quality when using turntables.  Should I use a preamp only for the turntable input or for all inputs?  If I adjust the equalizer for records is a preamp necessary or should I use the preamp and set it with trim pots to boost bass and cut treble a little, or should it be fully adjustable as well? As far as what to use for the final amplification I am at a bit of a loss.  A home theater system I have is 1500W and is adequately loud, but the system I have for my turntable right now think is only 250W I believe and it seems louder.  Never really understood wattages for "loudness"  or output on sound system.  I saw an IC (can't remember number, its a TDA though) dual 50W amplifier.  Not sure if 50W for each channel would be enough.  Advice would be helpful. As a side note, if I do go the route of a microcontroller, I found this NJW1186 with stereo input and 5.1 surround output which I thought would be cool. I really appreciate any help. Thank you

Question by KlockWork 4 years ago  |  last reply 1 year ago


ideas for homemade audio amplifier?

I was interested in pursuing the Bike Stereo instructable but I would rather not buy the $30 amp. What are the general ideas behind making decent-quality amplifiers for speakers? I have limited theoretical/practical experience with op-amps and I'm struggling to apply these ideas to a stereo system. Any thoughts?

Topic by post.haste 10 years ago  |  last reply 10 years ago


Speaker and microphone system for a helmet? Answered

I'm getting more and more done on a set of helmets (Daft Punks, to be exact) and ran into a slight snag. While fitting them and what not, I found out people have a hard time hearing me, and I have a hard time hearing them. And this is in a perfectly quite room. So when I do finish these, and start wearing them...I'm going to be a deaf mute. I did some looking, and I know I can at least get my phone worked into it. However, I was wondering if there is either a pre-existing soultion to this, or if someone has any cleaver ideas for a system that will feed outside audio into me, and inside audio out. Thanks in advance! 

Question by DoctorWoo 4 years ago  |  last reply 4 years ago


System interrupts causing problems?

I have a Windows 8.1 laptop with Intel i7, 8gb memory, 750gb hdd, and 2gb Nvidia video card that is about 3 years old. I've never had any problems until recently. When I play audio or video, there is a lag in the sound and everything freezes for less than a second. It does this anytime, even when just browsing the internet. I watched the performance monitor in the cpu section and there are usage spikes in 3 of the 8 cpu usage graphs when it lags. I think it comes from system interrupts, but I don't know what it means. I tried turning off audio enhancements, as some suggested for this problem, but it did not change anything. I have not made any recent changes to my laptop, so I don't know why this has just started. Any suggestions?

Question by Arya42 4 years ago  |  last reply 4 years ago


Audio device testing software?

 I have just bought some new earphones, they say the frequency range is 20 - 20kHz (fairly standard). I want to be able to test them so that I can ACTUALLY hear what 20 / 20kHz sounds like. While I'm there I'd like to test my (beloved) Sony sound system. Could I hook it up to a PC sound card and run some software or would the card drop the quality? *it is an el cheapo one. I've already played loads o' Pink Floyd before anyone asks....

Question by DELETED_zoltzerino 9 years ago  |  last reply 9 years ago


how to make an audio system out of a old radio?

For my birthday i once got a radio kit to make your own radio. It's very basic. It consists out of batteries, speaker, amplifier, preamplifier (series of risistors and stuff), detector, am tuner and fm tuner. It also has an volume control integrated. (see pictures) As I am only 16 years old and not very familiar with electronics I need some help for the next thing. I am very interested in everything that has to do with technical stuff. So I was wondering if I could elimate the fm and am tuner out of this circuit and turn it into a mp3-player speaker. Is this possible? If so, could anyone tell me how?

Question by bertj 10 years ago  |  last reply 10 years ago


av pros: how do I design an audio system for an *outdoor* theater?

I'm trying to come up with some specs for a mobile outdoor theater system and I could use some help with the audio work. If I have sound coming out of a DVD player, what components do I need? I was guessing a receiver, several speakers, and a subwoofer. What criteria are important for creating a system that sounds good outside? Can subwoofers even produce an effect when they're not inside? (I'm not concerned about weather-proofing as the system will be stored inside.)I also don't know whether it's worth going for surround sound or simple stereo, any advice?This thing would show movies to about 100 people. I have about $1500 for the audio system, so go nuts.. And thanks for any help!

Topic by moisture 10 years ago  |  last reply 6 years ago


Help with a game system mod?

I'm buying a sega game gear to mod. I want to add an a/v input without using the tv tuner accessory. Is this possible? I cant find it anywhere online, but i did find a pinout and it seems possible. I know i could connect the audio to pins 44 and 45. Would it work if i connected the video in to pin 43? Any help would be appreciated. Thanks in advance. 1 +34(V) liquid drive                                        24 MREQ memory request 2 +5(V) +5(V)                                                    25 A10/TPR2 address 3 /WR write signal                                           26 /RD read signal 4 A12 address                                                 27 /EXM 2 0~7FFFH 5 A7/CL1B3 address                                      28 A15 address 6 A6/CL1A2 address                                      29 A11 address 7 A5/CL1B2 address                                      30 A9/TPR1 address 8 A4/CL1A1 address                                      31 A8/CLIA3 address 9 A3/CL1B1 address                                      32 A13 address 10 A2/DW address                                          33 A14 address 11 A1/DO3 address                                        34 /EXM1 8000~BFFFH 12 A0/DO1 address                                        35 +5v +5 volts 13 D0/DB data                                                 36 /M1 M1 cycle 14 D1/P3 data                                                  37 IORQ I/O request 15 D2/P2 data                                                  38 /RFSH refresh 16 GND D ground                                           39 /RESET Reset 17 GND A ground                                            40 CCLK Clock 18 GND D ground                                           41 GND Ground 19 D3/P4 data                                                  42 /GG MS/GG 20 D4/P1 data                                                  43 /TV TV Cart 21 D5/CL2 data                                               44 TVSNDR VR Right Audio 22 D6/DO2 data                                              45 TVSNDL TV Left Audio 23 D7/DO4 data

Question by musick_08 7 years ago  |  last reply 7 years ago


How to make USB Female socket for Nippon NS68LO music system?

How to make USB Female socket for Nippon NS68LO music system which is OEM with Suzuki Cars and do not have a USB port although the system has a facility to connect USB drive through a round 8/9 pin socket at its rear.. I have seen some good uses of USB here and hence thought of asking if you could help me out.. Warm Regards, Rahul, India.

Question by rkorde 7 years ago  |  last reply 5 years ago


Help with amplifier 5.1

Good day, I had a samsung HT-40X home theater; however, the main unit died. So, I want to use the speaker and create a new audio system. The speakers spec are in the picture attached: http://downloadcenter.samsung.com/content/UM/201104/20110420105805326/20070309090035250_X40_SEA[1].pdf thanks.

Topic by scastro10 3 years ago  |  last reply 3 years ago


Can I add a subwoofer to a stereo system that has no subwoofer?

I have a stereo system that has a left and right speaker that connects to the main part of the stereo (CD player and the radio). I was wondering if I could disconnect the speakers, from the CD player itself, and make a circuit that amplifies a low sound bass, then connected to a small subwoofer.  (Instead of a normal amplifier that just makes treble sound louder.) Then reconnect the two speakers so the final result is that there is an amplified subwoofer.

Question by alpe_97 7 years ago  |  last reply 7 years ago


How to make a battery powered 5.1 speaker system?

Hi, I was wondering how I would be able to make reasonably powerful MP3 speaker system which is battery operated has 5 speakers( two tweeters, two mid range and one sub)? What sort of amp, circuitry and parts would I need? I was thinking about using amps like these...http://www.kemo-electronic.com/en/module/m032s/index.htmhttp://www.maplin.co.uk/Module.aspx?TabID=1&ModuleNo;=46809&doy;=24m7Thanks.

Question by 10 years ago  |  last reply 8 years ago


i have a SPX sound system in my car, anybody have any advice?... er beside buy a new system?

I recently bought a SPX audio system from pep boys.. yes i am aware that they aren't that good. but for what they cost, what i listen to, and what i want these will work fine. BUT.. they have a low and a high input. i just fed over 15 ft of 5 wire usb wire to connect the special adapter. i was just curios if anybody has messed around with this, or have used these speakers in general?, any info. would be greatly appreciated. thanks :)

Question by slimguy379 9 years ago  |  last reply 7 years ago


No audio after reinstalling Windows XP pro? Answered

Hey- after my previous question  (https://www.instructables.com/answers/iTunes-help-1/?comments=all#COFXX8YGI0TDF1M) i ended up reinstalling windows XP pro.... Its a little much, i know, but i ended up with system file corruption. ugh. After installing, setting up, crashing, setting up again, crashing, reformatting, reinstalling, setting up, crashing, setting up (again), crashing, and finally setting up without internet and removing the disk near the end, i was able to reinstall windows. fun. i was able to install itunes and such, but i cannot play any audio whatsoever. the computer has no speakers, and when i go to system volume (control panel) and such, there are no options for volume and such. the buttons are all greyed out. near the end of the settings there are some buttons that are clickable, but of no help to me (windows systems and drivers are a mostly mystery to me, but i do know a little). The audio out is connected to the mobo, so its not really an audio card... i need help :) Thanks!

Question by astroboy907 8 years ago  |  last reply 8 years ago


Home theater used for car audio?

I just bought a 2003 pontiac sunfire and i was wondering if i can use my pioneer sub from a home theater system in my car i already have a amp i just dont have money for real subs. so can anyone tell me if it will work and what i will need to make it work? 

Question by mcpikej 6 years ago  |  last reply 6 years ago


NIKON COOLPIX L100 + APPLE iPod Touch

Hi Guys, Lets see what we can do best here: I have a an old NIKON COOLPIX L100 + APPLE iPod Touch Am planning to make out a car reverse cam or probably a car video entertainment system out of it with bluetooth connectivity etc etc  My car has an audio system but no reverse sensors as of now. Any ideas ?

Topic by nacho1234 3 years ago


Portable Audio System, I need Help Making Scematics!

I'm a little stuck here, I obviously don't do circuitry work every day, but I do know what is what. I have a lawnmower battery, and a set of both a 9 volt operated pair of computer speakers, and a 15 volt subwoofer set. I was planning on using the subwoofer set initially, but it sucks a lot with it going through the inverter and whatnot, rather inefficient. I was trying to find scematics for a simple circuit to power the speakers without going through the inverter.

Topic by Punkguyta 12 years ago  |  last reply 11 years ago


How to test Sennheiser Microphone wireless transmitter ?

Hi all, I have a sennheiser Mikroport Transmitter HiDyn plus Model BF 1083-V, and a compatible microphone Sennheiser MKE 2-1053 How can i test if the device is working when i have receiver system that i can use to receive audio signals. I have however a cordless headphones set but that i capable of detecting audio signals in the range 800-900 Hz. Whereas the said Sennheiser transmitter transmits in the range 244,600 to 249,900Hz thanks for your replies.

Question by muhammajunaid 7 years ago  |  last reply 7 years ago


how to wire an amp from the rear speakers of my car?

I have an oem navigation cd/dvd radio head unit in my 05 Dodge Magnum that I just installed and I want to wire in an amplifier and run a 12" or 2 10" Subs with the existing system. I was fortunate enough to grab the ear of a tech that works at the local Dodge Jeep dealership and asked him what I needed to do and he said that at the dealership they tap off the rear speakers a piece of equipment that they can then hook up an amp to. Does anyone know what piece of equipment he was talking about?

Question by jbhemi 2 years ago  |  last reply 2 years ago


Trouble understanding audio amplifier schematic Answered

I have been looking at audio amplifier circuits online to use in a small-ish speaker system I am working on. I found the circuit in the image which is a pretty straight forward circuit and has cheap/easy to find parts. My only question is where exactly do I hook the audio input. I am guessing I connect to the .1uf capacitor on the left chip and to the ground, but I don't know. Thanks for your time. the circuit is also here: bp2.blogger.com/_ztWtnthp5tk/RkW7cyJceRI/AAAAAAAAAK0/7-Gi_-bt-ro/s1600-h/circuit-TDA2003+Amplifier+BCL+%28bridge+amplifier%29+18W+for+CAR.jpg

Question by danlab 9 years ago  |  last reply 9 years ago


Where can I find an amplifier for this portable sound system?

I am working on creating a waterproof sound system to bring to college. I have already created a 3-d model on Google Sketchup and I have two waterproof full range speakers and one 8 inch woofer. I want it battery powered and would either use a lead acid battery or try to salvage enough Lithium Ion cells from old computer batteries to power it for a long enough period of time. The question though is where to find an inexpensive amplifier that will run on 12 volts, is small, and has decent bass. Does anyone know of some websites on which I could find an amplifier? In the past I have bought desktop systems and converted them to battery power (on the rare occasion that they actually run on 12v dc after the transformer and rectifier), so I know it is possible. Thanks!!! **edit** It seems I forgot to include the specifications of the speakers! Anyway, here they are: 2 - "high fidelity full range speaker", 5" dual cone, "power capacity:30Watts system", 7 oz. ceramic magnet, "4 or. 8 Ohms system" (I measured 3.6 ohms with an inexpensive multimeter), They are on Ebay!! 1 - "Model:  Acoustic Audio MARBASS8 Color:  Black Acoustic Audio 650 Watt 8” Car/Marine Audio High Performance Subwoofer 650 Watts Peak Power Handling / 325 Watts RMS Power Handling Recommended Power:  30 Watts to 650 Watts 2” Parabolic RFL Voice Coil 60 oz. Magnet 4 Ohm Impedance Oversized Butyl Rubber Surround Poly Zirconium Cone Polyimide Voice Coil Former Mid Q Design for Versatility in Enclosure Compatibility Flat Progressive Roll Spider CEA Cooling Technology Vented & Extended Pole Piece Low Carbon Top & Bottom Piece Weather-Resistant Design" This is on Ebay too!

Question by HowToEngineer 6 years ago  |  last reply 6 years ago


hot to repair a 2.1 powered subwoofer system?

I have a MG audio 2.1 subwoofer system last night it suddenly broke when I plug in the cord and power it on nothing happens. Can some help fix it?

Topic by cpeig 7 years ago


Possible to build a Powered PA Speaker myself?

I am a musician, so I've been talking about guitar amplifiers, tubes, microphones and all kinds of gear for over 20 years. I've never really gotten that much into PA's, so I know nothing about speakers, heads, mixers, power amplifiers, etc. Now, I'd like to build my own powered PA speaker. I have zero experience with building anything that involves electronics. I'm not a dummy. I know Ohm's law, and I believe I can handle the physics of electronics, no problem. I just do not know where to start. Schematics for power audio amplifiers? Where does one find them, and how do you read schematics. These are the things I need to know.  Let me preface this by saying... I do not expect to build a top-of-the-line PA speaker. I don't even expect to build something that would be considered crappy. I just want to know the theory, and where to start. Anyone got any help? Thanks!

Topic by Dolmetscher007 4 years ago  |  last reply 2 years ago


How would I make a computer generate sound effects on startup?

Here's the deal... I build computers as part of a hobby, and I often advice my friends and family. My sister would like me to build her an ultimate PC which she would like to title "Zeus." Now despite the fact that Zeus is the father of all gods, we have a budget, and I am thinking of a build that has only moderate-high speed that way there is some money left over for the aesthetics. I already plan on having a black case, possibly painted by an artist if I can find one. with a clear side panel and UV or white LED lights.  What I would like to do in an ideal world is have the LEDs flash on startup (like lightning) and then remain lit and have a sound effect played (like the sound of thunder) I am complete stumped on the lights for the moment but for the sound effect I was trying to figure out if there would be a way to remove one of the sound generators from one of those "halmark cards" and just plug it into a fan connector on the mobo for power or something. (Some minor guess work soldier work there). But the problem with that would be how do reprogram the flash memory that plays the specific sound file to a different sound file.  I could be going the wrong way about all of this, but I just thought of this idea the other day. I welcome any constructive ideas... 

Question by Joshua Breeding 6 years ago  |  last reply 6 years ago



Windows 7 update: Unbelievable! Sound card stopped working!!!

Yesterday, enjoyed some music, a movie... Today,... no sound, green audio port is now SPDIF, and no means to change it in the control panel... Did system restore to 10 days or so back, and all works fine. Wow, major embarrassment for Microsoft!!! Anyone else had this problem?

Question by BobS 8 years ago


bluetooth 4 transmitter to headphone latency reduction

Hey everyone! i'm seeking some advice about a system i've been trying to work out - a bluetooth audio headset from a PA system for vocal monitoring during band rehearsals. currently i'm running microphone -> PA -> bluetooth 4.0 AD2P compatible audio transmitter -> powerbeats bluetooth 4.2 headphones the connection is working fine, the only issue is latency between microphone and headphones (approximately half a second), which makes it very difficult to use as a monitor as i require very minimal latency to hear my voice in synchronisation with the rest of the band. a few questions; does bluetooth simply have an unavoidable lag due to data compression? is it possible for me to hack the bluetooth transmitter in some way to increase the rate of compression/transmission? what would you recommend as a cheap substitute in the event that nothing can be done? thanks very in much in advance, Austin

Topic by totemgoat 3 years ago


The Monthly Challenge: Audio Hacks

OFFICIAL RULES PLEASE REVIEW THESE OFFICIAL RULES BEFORE ENTERING THE CONTEST. ENTRANTS WHO ARE MINORS: YOU MUST OBTAIN THE CONSENT OF YOUR PARENT OR LEGAL GUARDIAN BEFORE ENTERING THE CONTEST. ENTRY TO THE CONTEST IS FREE AND NO PAYMENT OR PURCHASE IS NECESSARY TO ENTER OR WIN. A PAYMENT OR PURCHASE WILL NOT IMPROVE YOUR CHANCES OF WINNING. VOID WHERE PROHIBITED BY LAW. PLEASE SEE THE INSTRUCTABLES TERMS OF SERVICE AND PRIVACY POLICY SECTION A - SPECIFIC TERMS FOR THIS CONTEST Sponsor. The Instructables The Monthly Challenge: Audio Hacks (the "Contest") is a skill-based contest sponsored by Instructables, Inc., a Delaware corporation ("Sponsor"), in connection with the Instructables.com website (the "Sponsor Site"). The Contest is co-sponsored by the company or companies listed here, if any (each, a "Co-Sponsor"): none. The Contest is governed by these Official Rules (these "Rules"). Overview. The object of the Contest is to share a hack that somehow involves sound. Eligibility. 1.THE CONTEST IS OPEN ONLY TO NATURAL PERSONS WHO, AT THE TIME OF ENTRY, ARE REGISTERED MEMBERS OF THE SPONSOR SITE, WHO ARE AT LEAST THIRTEEN (13) YEARS OLD, AND ARE LEGAL RESIDENTS OF THE 50 UNITED STATES (INCLUDING THE DISTRICT OF COLUMBIA BUT EXCLUDING PUERTO RICO),  CANADA (EXCLUDING THE PROVINCE OF QUEBEC, CANADA), UNITED KINGDOM, OR AUSTRALIA. 1.If you are a minor, meaning that you are under the age of majority in your jurisdiction (currently 18 or 19 in most U.S. states and provinces of Canada and Australia, and, for the UK, 16 in Scotland and 18 in most other parts of the United Kingdom), you must obtain permission from your parent or legal guardian, and your parent or legal guardian must consent to these Rules as if he or she were an entrant, before you submit an entry.  Sponsor reserves the right to require minors to submit proof of parental/guardian permission and consent to these Rules at any time, without which they may be immediately disqualified from the Contest. Certain individuals are excluded from eligibility to enter or win, as described in Section B below.  No purchase is necessary to enter the Contest. Deadline. The Contest begins at 12:00 a.m. Pacific Time (PT)/8AM GMT on 1/23/12 (the "Start Date"). Entries for the Contest must be received by Sponsor by 11:59 p.m. PT on 2/29/12 7:59am GMT on 3/1/12 (the "Deadline"). How to Enter. All entries must comply with the entry requirements identified in these Rules (including in this Section and in Section B below), as well as with any specific formatting or content requirements identified in Section A.2 above or on the "How to Enter" page https://www.instructables.com/is/The-Monthly-Challenge-Audio-Hacks/ for the Contest on the Sponsor Site. It is each entrant's responsibility to ensure compliance with those requirements. To enter a new project in the Contest, follow these steps: First document your project in the step-by-step or photo,Instructables format. When your project is ready to be published to the Sponsor Site, visit the Sponsor Site and follow the instructions for publishing your project to the Sponsor Site.  You must be a registered user of the Sponsor Site in order to publish a project to the Sponsor Site. If you are not already a registered user of the Sponsor Site, you will be prompted to create an account on the Sponsor Site during the publication process. Please note: in some jurisdictions, the publication of your project on the Sponsor Site could materially affect rights (e.g., adversely affect patent rights), you may own in the project.  You should make your own inquiries and seek your own advice on this issue. When you have published your project to the Sponsor Site, if you have reviewed the entry requirements for the Contest, believe your project qualifies for entry, and want to enter it in the Contest, leave a comment on the Contest page, and include a link to your published Instructable. Instructable must be published during the Contest period. You may not enter the same Instructables project in more than three (3) Instructables contests in total. Projects published prior to the Start Date are not eligible for entry.  You may not register the same Instructables project in more than three (3) Instructables contests in total. Further information about entry can be found in Section B below. Winner Selection. There can be up to 11 possible winning entries, depending on the number of eligible entries. The winning entries will be selected on or around 3/1/12, and Sponsor will announce the winner(s) on or around 3/1/12. There must be a minimum of the number of eligible entrants described for each tier listed below for it to be awarded.  Each winner will be awarded only the applicable prize according to the following: Prize(s). Tier #1: If there are at least 10 but no more than 24 entries, the winner will be awarded a prize package including a 1-year Instructables Pro membership, a Sugru sample pack, and an Instructables robot t-shirt.  Approximate retail value: $65, £ 42; Tier #2: If there are at least 25 but no more than 49 entries, the entrant with the highest judges’ score will be awarded a prize package including a Sony BDP-S480 Blu-ray Disc Player, a 1-year Instructables Pro membership, a Sugru sample pack, and an Instructables robot t-shirt.  Approximate retail value: $165, £ 106.14.  The entrants with the next 3 highest judges’ scores will each be awarded a prize package including a 1-year Instructables Pro membership, a Sugru sample pack, and an Instructables robot t-shirt.  Approximate retail value of each prize package: $65, £ 42; Tier #3: If there are at least 50 but no more than 99 entries, the entrant with the highest judges’ score will be awarded a Fujifilm FinePix Real 3D W3 Digital Camera with 3.5-Inch LCD, a 1-year Instructables Pro membership, a Sugru sample pack, and an Instructables robot t-shirt.  Approximate retail value: $400, £ 257.32.  The entrant with the next highest judges’ score will be awarded a prize package including a Sony BDP-S480 Blu-ray Disc Player, a 1-year Instructables Pro membership, a Sugru sample pack, and an Instructables robot t-shirt.  Approximate retail value: $165, £ 106.14.  The entrants with the next 5 highest judges’ scores will each be awarded a prize package including a 1-year Instructables Pro membership, a Sugru sample pack, and an Instructables robot t-shirt.  Approximate retail value of each prize package: $65, £ 42; Tier #4: If there are 100 or more eligible entries, the entrant with the highest judges’ score will be awarded a prize package including a Vivitek Qumi Q2 300 Lumen WXGA HDMI 3D-Ready Pocket DLP Projector, a 1-year Instructables Pro membership, a Sugru sample pack, and an Instructables robot t-shirt. Approximate retail value: $565, £ 365.15. The entrant with the next highest judges’ score will be awarded a Fujifilm FinePix Real 3D W3 Digital Camera with 3.5-Inch LCD, a 1-year Instructables Pro membership, a Sugru sample pack, and an Instructables robot t-shirt.  Approximate retail value: $400, £ 257.32.  The entrant with the next highest judges’ score will be awarded a prize package including a Sony BDP-S480 Blu-ray Disc Player, a 1-year Instructables Pro membership, a Sugru sample pack, and an Instructables robot t-shirt.  Approximate retail value: $165, £ 106.14.  The entrants with the next 10 highest judges’ scores will each be awarded a prize package including a 1-year Instructables Pro membership, a Sugru sample pack, and an Instructables robot t-shirt.  Approximate retail value of each prize package: $65, £ 42. With respect to any prizes that include any gift cards, pre-paid debit cards,  similar cards, or any other items or services that are subject to third party terms and conditions or restrictions, acceptance and use of the prizes are subject to all eligibility criteria, expiration dates, service or dormancy fees, and all other terms and conditions (if any) imposed by the issuer of such cards, items or services. Neither Sponsor, nor any Co-Sponsor, nor any of their affiliates is the issuer of any such cards, items or services, and none of them are responsible for establishing those terms and conditions, for disclosing or explaining any of those terms and conditions to entrants, or for any winner's failure to comply with any of them.  If a winner does not comply with all of those terms and conditions, the winner may not be able to obtain the maximum value, or any value, from his or her prize. The estimated retail value of all prizes to be awarded in the Contest depends on the number of eligible entries and is between: $65 - $1,780, £ 42 - £ 1,145.06. Judging. 1.Entries will be judged on the basis of the following criteria (the "Criteria"):  relevance, originality, usefulness, simplicity, and clarity of instructions, each of which will be given equal weight.  Entrants will be judged by the Randy Sarafan. Further information on the steps and process of voting and judging can be found in Section B below. Odds of Winning. The odds of winning a prize depend on the number of eligible entries received between the Start Date and the Deadline and the quality of each entry as evaluated by the Judge in the manner described above.  The number of entries received, and the number of winners chosen, in prior contests of Sponsor, including the three (3) most recently completed contests, can be found through the "Contests" page of the Sponsor Site, which can be found here instructables.com/contest.  The number of eligible entries for Sponsor's recently completed contests generally has ranged from approximately two (2) to approximately eighty-three (83), and generally has averaged approximately forty (40), but Sponsor cannot predict or guarantee any specific number of eligible entries for the Contest.   SECTION B - ADDITIONAL TERMS FOR THIS CONTEST General Conditions. By entering the Contest, each entrant agrees to abide by the terms of these Rules and by the decisions of Sponsor and the Judges, which shall be made in all cases in their sole and absolute discretion and are final and binding on all matters relating to the Contest. The Contest is governed by the laws of the State of California and applicable United States federal law, without regard to any conflicts of laws principles. The Contest is void where prohibited by law. The Contest is also governed by Sponsor's Terms of Use, Privacy Policy, and other policies (collectively, the "Policies") pertaining to the Sponsor Site, although the Rules will govern any conflict between the Privacy Policy and the Rules. Exclusions from Eligibility. 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Topic by randofo 7 years ago


Adding an 1/8 stereo output to a single speaker. How?

I have a mono speaker record player I bought at Sears in 2005. I'm looking to add a 1/8 inch jack so I can hook it up to a surround sound system. How could I do this? In the photos the red and green wires are connected to the speaker.

Question by friendlyghost 8 years ago  |  last reply 8 years ago


'02 Prius: Create AUX audio input

My Prius is still cruising along fine. But, I tire of messing around with FM transmitters to get my audio into the radio/audio system. I purchased mine with a 6 CD changer, so I know there's a way to add audio in. [The changer died after 2.5 years: Toyota said $300 to send it off to CA and get someone else's refurbished device back. No thanks.]I see all the newer cars with an AUX audio input jack. I'd like to put in such and/or a Bluetooth input.I went to a local car audio store and they said $450 to add it in. Bleah!Anyone done this or know how? [This is the original body style, not the newer, fastback style.]

Question by GanadoRH 14 days ago  |  last reply 14 days ago


What would I need to build to power/use speakers for a 7.1 home theater setup? Answered

A friend just gave me speakers from his 7.1 home theater setup. His kids fried the receiver and I don't have one. I'm wondering how hard it would be to put together a simple setup to use them as a 7.1 system again? I don't need dolby or thx or any of that other decoder stuff. I just need to be able to hook them up to an HTPC. Some kind of amp/driver and the ability to change the volume is what I am looking for. Any ideas?

Question by Dochide 8 years ago  |  last reply 8 years ago


can you make a subwoofer from computer audio system go boom booom boooom in a car without adding an amplifier?

I have a spare logitech g51 speaker system and want to use the subwoofer in my car instead of purchasing an entire car designed subwoofer, box, amp, wires, crossovers, etc., etc.

Question by shhsahsim 10 years ago  |  last reply 9 years ago


how way profit count coin joined by LCD display and notification through audio system using arduino?

Ok, Im have a little project about coin counter joined by LCD display and notify through audio system using arduino. Im using LDR sensor because it just a cheap project. Im not using a coin acceptor sensor as it difficult to be acquired. Is that any kind of program that is applicable to calculate coin instantly display coin total through LCD and can notify through audio system? or suggestion to use any other sensor? I hope anybody can help me.. thanks ^_^

Question by MohdFirdaus 3 years ago  |  last reply 3 years ago


Need a protection circuit?

Hi i am making my own speaker system. i am using this amp http://www.dealextreme.com/p/y148-audio-amplifier-module-93121 the issue im facing is that a few days ago i power this amp with a smps 12v 1amp supply and it was working fine till something went wrong with the psu and there was a spark in the psu, the major problem which occurred  was that this caused a surge which travelled through the amp to my audio source which in this case was my computer. i ended up frying my sound card . can anyone help me make some kind of protection circuit which allows audio signals to pass through but does not let current from the psu pass through.

Question by cfrek 6 years ago  |  last reply 6 years ago


7.1 DIY audio switch, please help

Dear Instructables community,I stumbled on to this site while looking for a DIY solution to a problem where no commercial alternative seems available. The problem? I need a dual input/output switch for my 7.1 audio system.What I found on this site was: https://www.instructables.com/id/35mm_51_Surround_Sound_Switch_Splitter_Box/I'm "OK" with a soldering iron, but I've never really built anything before, and I'm not familiar with some of the terminology. Really, the only things I have done in the past have been soldering plugs on the ends of wires and re-soldering loose connections. Even so, I'd like to build something similar but for 7.1 with dual inputs and outputs.I'm hoping you can help me make the right choices building this.My original plan was going to be just like the 5.1 version with a few most switches, but instead of the input 3.5mm jack as the source for the switch, I would just connect another switch and then connect it to two 3.5mm jacks.(See attached image)Will this work without taking a hit in audio quality?Is there an easier or more efficient way of doing this?Here's the hardware I selected initially:Switches: http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId;=10001&catalogId;=10001&productId;=76260&3.5mm jacks: http://www.allelectronics.com/make-a-store/item/SMJ/3.5MM-STEREO-PHONE-JACK-W/N.O.-SWITCH/1.htmlI don't understand most of the terminology on these parts, but they look like they should work.Please let me know what you think, I'm open to advice.Thanks!

Topic by Oriknama 9 years ago


i want to build a phono audio splitter can someone help me please?

I am looking to bulid a audio splitter box to use with my tv, ipod and laptop. that will be capable of transmiting sound singals out to a headset a suraound sound system and another speaker. i have designed a diagram but need some help. please my someone help me?

Question by acollin1 7 years ago  |  last reply 7 years ago