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humming soundcard
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| djdawn |
hi y'all.
I have a strange problem w/my soundcard (soundblaster 64).
When I connect the line-out to my mixer I get a humming sound as from a turntable that's not connected to mass/earth. Strange thing is: the humming is there even when I mute that channel on the mixer. That doesn't happen with a humming turntable. If I mute the channel, it's supposed to be mute, but with the soundcard it isn't.
And when I go from the line out to tape or minidisc, there's no humming at all.
Any suggestions ? (I'm getting a new soundcard soon, but I still need help with the old one)
Thanks,
dawn |
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| Paul Griffiths 1 |
| Hmmm, not sure but did you mute the Microphone output? That makes some crazy humming noises at times. |
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| jax |
| quote: | Originally posted by djdawn
hi y'all.
I have a strange problem w/my soundcard (soundblaster 64).
When I connect the line-out to my mixer I get a humming sound as from a turntable that's not connected to mass/earth. Strange thing is: the humming is there even when I mute that channel on the mixer. That doesn't happen with a humming turntable. If I mute the channel, it's supposed to be mute, but with the soundcard it isn't.
And when I go from the line out to tape or minidisc, there's no humming at all.
Any suggestions ? (I'm getting a new soundcard soon, but I still need help with the old one)
Thanks,
dawn |
Make sure your PC is also connected to mass/earth (powercable <-> wall outlet) and/or try moving your soundcard as far away as possible from your powersupply. |
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| Joel Fielder |
| Sounds like the cable's knackered, but yeah, check your PC's grounded too. |
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| djdawn |
| Just wanted to let everybody know that I got rid of the humming by inserting a "Ground Loop Isolator". Sounds perfect now. Costs $10, got it from www.conrad.de |
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| NZWaverider |
yeah I have the same problem with my laptop at work i record a trance program off the radio every thursday night, off my car stereo when i run a lead to an external power source (the building)its fine however when i hook up my DC-AC power inverter off of my deep cycle battery (which is on a split charge circut from the main battery running my amplifiers) and plug it into the mic input there is a slight hummmmm. i assume it is some sort of grounding loop problem but does anybody know what will fix it? can you fit a ground loop isolator to a laptop?
cheer cheer |
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| djdawn |
| Yes you can fit the GLI to anything that has stereo RCA jacks. No external power is needed. |
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| j_spot |
| I was going to suggest that you probly have a ground loop of a sort, and it might be easy, might not be to get rid of it. but you fixed it. Good cables r worth it. |
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