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| rjisinspired |
| Posted: Apr 2 2012, 10:02 AM |
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Advanced Member
Group: Members
Posts: 1256
Member No.: 20008
Joined: 12-October 06
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I have a pair of Logitech speakers that are about maybe a little two years old. Just recently I have been experiencing two types of buzzes.
Regular buzz:
http://rjschat.dyndns.org:8080/Paranoha/AP...S/VDUB/buzz.mp3
Bass buzz:
http://rjschat.dyndns.org:8080/Paranoha/AP...UB/bassbuzz.mp3
I was able to lessen the regular buzz a little bit by disabling the "front" option under the volume control in windows, some buzz still exists but not as bad. The bass beats remain the same.
I have tried moving speakers away from the computer and monitor, same thing. Out of the time I have had these speakers I have not heard of these buzzes. They started happening as of this recent. Buzzes are there whether headphones are connected or not to the speakers.
What causes this? |
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| dloneranger |
| Posted: Apr 2 2012, 04:19 PM |
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Moderator
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The bass buzz sounds kinda like something vibrating, and the buzz sounds like feedback???
Got a microphone plugged in anywhere?
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| rjisinspired |
| Posted: Apr 2 2012, 08:46 PM |
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Advanced Member
Group: Members
Posts: 1256
Member No.: 20008
Joined: 12-October 06
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I suspended the speakers off from the table and moved them away and even dialed the bass knob down to zero and the buzz is still there.
Microphone is disconnected at this time.
In the spectrogram the buzz shows up as evenly spaced lines. Starts way down the scale with the first, next, noticeable line at around 1464 hertz and stepping up the scale, gradually decreasing in amplitude with each step
Buzz:
Beat buzz:
I had thought it may had been a grounding issue but I just recently got this effect. If all else fails, guess I'll be getting new speakers. |
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| rjisinspired |
| Posted: Apr 3 2012, 05:19 AM |
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Advanced Member
Group: Members
Posts: 1256
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Joined: 12-October 06
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I just disconnected the speakers and plugged the headphone directly into the computer and the buzz is there! |
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| evropej |
| Posted: Apr 4 2012, 01:18 PM |
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Advanced Member
Group: Members
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Joined: 28-November 09
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I can be noise from the sound card, they are not perfect. High end systems have a high signal to noise ratio. |
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| rjisinspired |
| Posted: Apr 4 2012, 03:15 PM |
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Advanced Member
Group: Members
Posts: 1256
Member No.: 20008
Joined: 12-October 06
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I had also connected my DS30 Olympus directly to the speakers to be sure and there was no buzz so the problem isn't the speakers.
The sound I'm currently using is from the motherboard's onboard chip, I should had mentioned that. It uses the Realtek ALC883 codec.
I just ordered an Audigy card last night. I had one a few years ago but I had given it to my Ex, "groan", for her Win ME machine that some relatives had built for her, literally out of scrap/left over parts. OHHH Bob, how could you had gone and done something like that? lol.
Yeah nice machine. 224 megs of usable ram, a couple hundred megahertz processor and a 4GB hard drive.  And my Audigy card! lol. |
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| phaeron |
| Posted: Apr 9 2012, 07:48 PM |
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Virtualdub Developer
Group: Administrator
Posts: 7773
Member No.: 61
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I'd say noise from the sound card, too -- on-board sound cards are notorious for noisy analog paths.
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