Overclock.net › Forums › Case Mods & Cases › Other Hardware Mods › (solved) Sound reactive led circuit problems
New Posts  All Forums:Forum Nav:

(solved) Sound reactive led circuit problems

post #1 of 5
Thread Starter 
Anyone know of a better circuit:

Building-the-circuit.jpg

Above is a circuit i find on many sites for this application. However, why, when replicated on a breadboard, do I get between 0 and 3v when the supposed output is 12-18v?

Any input is appreciated! If anyone knows of a (better) alternative, please post! : )


EDIT: Was running pre-amp, supposed to be post-amp. Meh... wouldve worked better other way. smile.gif
Edited by BlackVenom - 6/8/11 at 9:56pm
IntelAsylum R2.1
(14 items)
 
M11xR2
(13 items)
 
 
CPUMotherboardGraphicsRAM
i5 2500k ASRock Z77 Extreme6 MSI GTX 970 GAMING 4G 16GB Ripjaw X 
Hard DriveHard DriveOptical DriveOS
R0: 2x1TB WD Se Samsung 840 EVO LG UH12LS28 BDD Windows 7 Ultimate x64 
MonitorKeyboardPowerCase
Dell E2414H x2 M$ Sidewinder x4 Seasonic 600W CM HAF 932A 
MouseMouse Pad
Logitec M705 MouseMat 
CPUGraphicsRAMHard Drive
i7 GT335m 1gb 4gb ddr3 Sandisk 128GB SSD 
OS
Windows/Linux/Depends 
  hide details  
Reply
IntelAsylum R2.1
(14 items)
 
M11xR2
(13 items)
 
 
CPUMotherboardGraphicsRAM
i5 2500k ASRock Z77 Extreme6 MSI GTX 970 GAMING 4G 16GB Ripjaw X 
Hard DriveHard DriveOptical DriveOS
R0: 2x1TB WD Se Samsung 840 EVO LG UH12LS28 BDD Windows 7 Ultimate x64 
MonitorKeyboardPowerCase
Dell E2414H x2 M$ Sidewinder x4 Seasonic 600W CM HAF 932A 
MouseMouse Pad
Logitec M705 MouseMat 
CPUGraphicsRAMHard Drive
i7 GT335m 1gb 4gb ddr3 Sandisk 128GB SSD 
OS
Windows/Linux/Depends 
  hide details  
Reply
post #2 of 5
This is most likely just pins the wrong way round, check the data sheet for your ic

Tip 31 is transistor so if you have pins wrong way it could be switching audio input instead of 12v from your source

Also you will not get 12-18v output to leds you will get 12v only and I don't believe this way will work too well at all, last time I made a similar circuit it took many more components

Search Google for vu meter circuit
My Beast
(16 items)
 
  
CPUMotherboardGraphicsRAM
3770k @ 4.5 HT On 1.3v Delidded Asrock Z77 Extreme4 HD4000/Onboard Hynix CFR Modules 8gb (2x4gb) @ 2200 @ 1.55v 
Hard DriveHard DriveOptical DriveCooling
OCZ Vertex 4 256gb Seagate Barracuda 7200.14 2TB ST2000DM001, 1TB ... Pioneer BDR-207EBK Blu-Ray Writer Noctua NH-C14 
OSMonitorKeyboardPower
Windows 8 Pro 64-bit BenQ 21.5" G2222HDL Logitech G19 Cooler Master Silent Pro M2 720w 
CaseMouseMouse PadAudio
CoolerMaster Haf XB Logitech M600 none Onkyo TX-NR515 5.1 Surround System 
  hide details  
Reply
My Beast
(16 items)
 
  
CPUMotherboardGraphicsRAM
3770k @ 4.5 HT On 1.3v Delidded Asrock Z77 Extreme4 HD4000/Onboard Hynix CFR Modules 8gb (2x4gb) @ 2200 @ 1.55v 
Hard DriveHard DriveOptical DriveCooling
OCZ Vertex 4 256gb Seagate Barracuda 7200.14 2TB ST2000DM001, 1TB ... Pioneer BDR-207EBK Blu-Ray Writer Noctua NH-C14 
OSMonitorKeyboardPower
Windows 8 Pro 64-bit BenQ 21.5" G2222HDL Logitech G19 Cooler Master Silent Pro M2 720w 
CaseMouseMouse PadAudio
CoolerMaster Haf XB Logitech M600 none Onkyo TX-NR515 5.1 Surround System 
  hide details  
Reply
post #3 of 5
Thread Starter 
Thanks. I was running it preamp and it's supposed to be after. And this isn't supposed to be a vu meter.
IntelAsylum R2.1
(14 items)
 
M11xR2
(13 items)
 
 
CPUMotherboardGraphicsRAM
i5 2500k ASRock Z77 Extreme6 MSI GTX 970 GAMING 4G 16GB Ripjaw X 
Hard DriveHard DriveOptical DriveOS
R0: 2x1TB WD Se Samsung 840 EVO LG UH12LS28 BDD Windows 7 Ultimate x64 
MonitorKeyboardPowerCase
Dell E2414H x2 M$ Sidewinder x4 Seasonic 600W CM HAF 932A 
MouseMouse Pad
Logitec M705 MouseMat 
CPUGraphicsRAMHard Drive
i7 GT335m 1gb 4gb ddr3 Sandisk 128GB SSD 
OS
Windows/Linux/Depends 
  hide details  
Reply
IntelAsylum R2.1
(14 items)
 
M11xR2
(13 items)
 
 
CPUMotherboardGraphicsRAM
i5 2500k ASRock Z77 Extreme6 MSI GTX 970 GAMING 4G 16GB Ripjaw X 
Hard DriveHard DriveOptical DriveOS
R0: 2x1TB WD Se Samsung 840 EVO LG UH12LS28 BDD Windows 7 Ultimate x64 
MonitorKeyboardPowerCase
Dell E2414H x2 M$ Sidewinder x4 Seasonic 600W CM HAF 932A 
MouseMouse Pad
Logitec M705 MouseMat 
CPUGraphicsRAMHard Drive
i7 GT335m 1gb 4gb ddr3 Sandisk 128GB SSD 
OS
Windows/Linux/Depends 
  hide details  
Reply
post #4 of 5
Quote:
Originally Posted by BlackVenom;13803034 
Thanks. I was running it preamp and it's supposed to be after. And this isn't supposed to be a vu meter.

I know it's not, it's suppose to be a simple flash to the music lighting but I recommended searching for vu meter for 2 reasons
1- I thought you might like them, they are more visually pleasing and more fun to make

2- most simple flash to music displays using leds similar to yours are actually listed as vu meters even though technically they are not

glad you got it working, pleasebpost pics of your finished design :-D
My Beast
(16 items)
 
  
CPUMotherboardGraphicsRAM
3770k @ 4.5 HT On 1.3v Delidded Asrock Z77 Extreme4 HD4000/Onboard Hynix CFR Modules 8gb (2x4gb) @ 2200 @ 1.55v 
Hard DriveHard DriveOptical DriveCooling
OCZ Vertex 4 256gb Seagate Barracuda 7200.14 2TB ST2000DM001, 1TB ... Pioneer BDR-207EBK Blu-Ray Writer Noctua NH-C14 
OSMonitorKeyboardPower
Windows 8 Pro 64-bit BenQ 21.5" G2222HDL Logitech G19 Cooler Master Silent Pro M2 720w 
CaseMouseMouse PadAudio
CoolerMaster Haf XB Logitech M600 none Onkyo TX-NR515 5.1 Surround System 
  hide details  
Reply
My Beast
(16 items)
 
  
CPUMotherboardGraphicsRAM
3770k @ 4.5 HT On 1.3v Delidded Asrock Z77 Extreme4 HD4000/Onboard Hynix CFR Modules 8gb (2x4gb) @ 2200 @ 1.55v 
Hard DriveHard DriveOptical DriveCooling
OCZ Vertex 4 256gb Seagate Barracuda 7200.14 2TB ST2000DM001, 1TB ... Pioneer BDR-207EBK Blu-Ray Writer Noctua NH-C14 
OSMonitorKeyboardPower
Windows 8 Pro 64-bit BenQ 21.5" G2222HDL Logitech G19 Cooler Master Silent Pro M2 720w 
CaseMouseMouse PadAudio
CoolerMaster Haf XB Logitech M600 none Onkyo TX-NR515 5.1 Surround System 
  hide details  
Reply
post #5 of 5
Thread Starter 
I would prefer a vu meter but I want to make it with stuff I can get in town... and RS doesn't carry too much. I'll take pix when done. I've had this piece of acrylic sitting in front of me for an hour now.. guess it's time to go cut.
IntelAsylum R2.1
(14 items)
 
M11xR2
(13 items)
 
 
CPUMotherboardGraphicsRAM
i5 2500k ASRock Z77 Extreme6 MSI GTX 970 GAMING 4G 16GB Ripjaw X 
Hard DriveHard DriveOptical DriveOS
R0: 2x1TB WD Se Samsung 840 EVO LG UH12LS28 BDD Windows 7 Ultimate x64 
MonitorKeyboardPowerCase
Dell E2414H x2 M$ Sidewinder x4 Seasonic 600W CM HAF 932A 
MouseMouse Pad
Logitec M705 MouseMat 
CPUGraphicsRAMHard Drive
i7 GT335m 1gb 4gb ddr3 Sandisk 128GB SSD 
OS
Windows/Linux/Depends 
  hide details  
Reply
IntelAsylum R2.1
(14 items)
 
M11xR2
(13 items)
 
 
CPUMotherboardGraphicsRAM
i5 2500k ASRock Z77 Extreme6 MSI GTX 970 GAMING 4G 16GB Ripjaw X 
Hard DriveHard DriveOptical DriveOS
R0: 2x1TB WD Se Samsung 840 EVO LG UH12LS28 BDD Windows 7 Ultimate x64 
MonitorKeyboardPowerCase
Dell E2414H x2 M$ Sidewinder x4 Seasonic 600W CM HAF 932A 
MouseMouse Pad
Logitec M705 MouseMat 
CPUGraphicsRAMHard Drive
i7 GT335m 1gb 4gb ddr3 Sandisk 128GB SSD 
OS
Windows/Linux/Depends 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Other Hardware Mods
Overclock.net › Forums › Case Mods & Cases › Other Hardware Mods › (solved) Sound reactive led circuit problems