Badcaps.net Forum
Go Back   Badcaps Forums > General Topics > General Capacitor Questions & Issues
Register FAQ Calendar Search Today's Posts Mark Forums Read

 
Thread Tools Display Modes
Old 09-05-2007, 02:23 PM   #21
Fizzycapola
Badcaps Veteran
 
Fizzycapola's Avatar
 
Join Date: Oct 2006
City & State: England
Posts: 411
Default Re: What causes "clicking and popping noise" on Audigy cards?

Thanks for post willawake, I will consider them during my next purchasing.

999999...
Thanks for suggestions.
__________________
Rubycon Rubycon Rubycon
Fizzycapola is offline   Reply With Quote
Old 02-08-2008, 06:03 PM   #22
Fizzycapola
Badcaps Veteran
 
Fizzycapola's Avatar
 
Join Date: Oct 2006
City & State: England
Posts: 411
Default Re: What causes "clicking and popping noise" on Audigy cards?

After reading about new op-amps in the op-amp market featuring "no pops and clicks", I think a solution may be finally feasible.

I've been looking at this aswell as other new ones came in farnell last month:

LM6171AIM/NOPB NATIONAL SEMICONDUCTOR Operational Amplifier (Op-Amp) IC New
LM6171AIM/NOPB Operational Amplifier (Op-Amp) IC 1496188 Image is for illustrative purposes only.
Please refer to product description

Manufacturer: NATIONAL SEMICONDUCTOR

Order Code: 1496188

Manufacturer Part No: LM6171AIM/NOPB

RoHS : RoHS Compliant Yes
Description

* Operational Amplifier (Op-Amp) IC
* Number of Amplifiers:1
* Bandwidth Max:100MHz
* Slew Rate:3600V/us
* Package/Case:8-SO
* Leaded Process Compatible:Yes
* Peak Reflow Compatible (260 C):Yes
* Supply Voltage:16V
Fizzycapola is offline   Reply With Quote
Old 02-08-2008, 07:15 PM   #23
999999999
Badcaps Veteran
 
Join Date: Sep 2006
City & State: Near Cincinnati, OH
My Country: USA
Line Voltage: 120VAC 60Hz
Posts: 776
Default Re: What causes "clicking and popping noise" on Audigy cards?

Fizzycapola, LM6171 isn't new, maybe just the lead free version is. Many feel bipolar opamps don't sound as good as jfet (input), though if you were wanting to directly drive low Z headphones then it's higher than average current capability would be a plus.

Regardless, when one talks of opamps more immune to clicking or popping I think it's generally in one specific context, when some of them are powering up or down (only once per power cycle, turning on or off the equipment) they have an instable voltage range below their minimal spec'd voltage. You wouldn't be seeing that problem while using a system continually turned on, rather it seems the opamp is getting this output from the sound processor due to the PCI bus problem others have mentioned.

I may be wrong, but I have built a few headamps including using LM6171. What you might do is temporarily solder on jumper wire to the opamp input pin for L & R channels and to ground, talking all three wires to an off-board headphone jack. This takes the opamp out of the loop and you can directly drive the next stage to see if the pops and clicks are already present before the opamp's involvement. Hooking this up to a scope instead of headamp or headphones would be even better.
999999999 is offline   Reply With Quote
Old 02-08-2008, 08:10 PM   #24
PCBONEZ
Grumpy Old Fart
 
PCBONEZ's Avatar
 
Join Date: Aug 2005
City & State: Phoenix, AZ
My Country: USA
Line Voltage: 120V 60Hz
I'm a: Professional Tech
Posts: 10,631
Default Re: What causes "clicking and popping noise" on Audigy cards?

Me,,
I just unplug the damned speakers...
There's a 4 foot high stack of Kenwood right behind me....
__________________
Mann-Made Global Warming.
- We should be more concerned about the Intellectual Climate.

-
Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.

- Dr Seuss
-
You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
-
PCBONEZ is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



Badcaps.net Technical Forums 2003 - 2019
Powered by vBulletin ®
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 06:55 AM.
Did you find this forum helpful?