Is the humming noise normal when usb is used?
1308673
I'm not sure "normal" is the correct word, but yes, I get the electric buzzing as well when I'm using USB on higher draw devices like tablets, and certain phones.
1071680
No that is not normal. I have had that happen to two different M-Audio USB interfaces that I've owned, both of them different models. With both devices, they failed to work completely, and one of them even emitted a loud clicking noise. It is broken. While this scenario is not how the device is supposed to operate, it is normal for M-Audio devices as they break in this manner often.
900199
I have heard no noticeable noises because I use it for kids to listen to books on CD. When I tested it I heard nothing unusual. Hope that helped.
333126
Well, let me qualify my response, not unless the 'appliance' you have plugged in to happens to produce a humming sound. For whatever reason that is. LMAO!
554234
I just bought it & have Windows 7. It works fine except it has a hum that I can't get rid of. I've played with the gain button & the mic volume, but it's still there. Any suggestions?
1599298
Mine is literally behind my couch and I never noticed a humming noise. I read, listen to music and watch TV in that spot.
429255
I'd replace it. If had one for several weeks which I use for about 10 hours per day. It's been great so far with no humming noise!
2120295
Does the hissing noise occur solely on that Android device ? If the answer is no then you likely have a defective unit.
572406
He (I 'd rather address my products as he/she rather than 'it') vibrates with a low humming sound- not very loud at all. Hope this answers your question :)
175908
No real problems with mine. Do you have anything unusual plugged into your USB ports?
1355074
There is a little bit of noise when I warm mine up but it is not that loud, I would describe it as a very soft humming.
749363
I agree that this kb is moderate in noise, definitely not quiet. Also agree it would be annoying in a library. Have not had usb issues. Have had issues with a somewhat sticky, less than ideally response backspace key.
2201861
Have you ruled out a ground loop as the source of hum? http://www.youtube.com/watch?v=4YM1iwC6vhg http://en.wikipedia.org/wiki/Ground_loop_%28electricity%29
2176543
Yes. Also this desktop has a problem of making a loud humming noise, check with other reviewers, this seems to be a common occurrence.
1584982
I did not hear 60Hz hum or buzz when using my Fuze+. Many other inexpensive MP3 players (eg Panasonic, Cobe) have very conspicuous electronic noise from the unit processor (aka interrupt noise). I find the SanDisks Sansas better shielded from internal noise than cheapter products, but it is not perfect. AC hum hasn't been one of my complaints. Another idea you could try, if you happen to be in a high-noise area, is to get a length of wire, connect it to a metal coffee can and plug the wire into the ground outlet of a three-pronged outlet. That should create a Faraday cage which should absorb that 60Hz signal. I did not hear 60Hz hum or buzz when using my Fuze+. Many other inexpensive MP3 players (eg Panasonic, Cobe) have very conspicuous electronic noise from the unit processor (aka interrupt noise). I find the SanDisks Sansas better shielded from internal noise than cheapter products, but it is not perfect. AC hum hasn't been one of my complaints. Another idea you could try, if you happen to be in a high-noise area, is to get a length of wire, connect it to a metal coffee can and plug the wire into the ground outlet of a three-pronged outlet. That should create a Faraday cage which... » Read More I did not hear 60Hz hum or buzz when using my Fuze+. Many other inexpensive MP3 players (eg Panasonic, Cobe) have very conspicuous electronic noise from the unit processor (aka interrupt noise). I find the SanDisks Sansas better shielded from internal noise than cheapter products, but it is not perfect. AC hum hasn't been one of my complaints. Another idea you could try, if you happen to be in a high-noise area, is to get a length of wire, connect it to a metal coffee can and plug the wire into the ground outlet of a three-pronged outlet. That should create a Faraday cage which should absorb that 60Hz signal. « Show Less
1710963
Yes- It's probably normal not a defect. I've had similar appliances in the past and they all make a hum.
148235
At low volumes it is not very noticable... but if you crank it up then turn off the source of the audio (like turning off your tv) leaving the sound bar on...then the hum is bad.