Hot answers tagged

1 vote
Accepted

What causes voltage potential to alternate in a ground loop?

Thing is, that if two points in a circuit are actually "ground" (i.e. 0V potential) then by definition, no current can flow between these two points. When current does flow between two arbitrary ...
  • 8,548
1 vote

Is it possible to automate removal of hum and distortion in audio files?

Distortion in the form of clipping would be very difficult to remove: the waveform has been altered, and information on the missing part of the waveform has been lost.
  • 1,568
1 vote

Is it possible to automate removal of hum and distortion in audio files?

Depends on what sort of result you want. Sure you can analyze whether a file contains more than a reasonable amount of 50Hz or 60Hz and you can notch that out, but the problem with this approach is ...
  • 8,548
1 vote

How to fix low frequency hum in a Yamaha silent guitar powered by adapter?

Could be any of the three (or most likely a combination): power supply UST (under saddle transducer pickup) preamp circuitry You already tried out different power supplies, but still that's where I'...
1 vote

Difference between audio quality

It sound like the good version has simply been cleaned up using equalization. The humming you speak of is just bad low frequency 'rumble'. It's a bad recording, but in the cleaner version somebody ...
  • 2,266
1 vote

Can not remove hiss/hum

Sounds like you could benefit from a pre-amp of some sort to between the microphone and your camera. Your camera most likely takes a line level signal into the Aux jack. Here is an example of one way ...
1 vote

Can not remove hiss/hum

What type of cables are you using to connect your audio interface into your camera? Does it support TRS? TRS cables generally do a great job of eliminating noise. The issue could range from gain ...
1 vote

Recording a headphone output using USB sound card microphone input

There are a few things that are causing problems for you here. Mainly that your source is designed to drive a set of headphones and your load (sound card) is designed to accept an electret microphone ...
1 vote

Noise / Ground Loop problem with Devine BM 400 Microphone

1) - Make sure everything is plugged in to the same circuit. You can get a 60-cycle hum from having amps on one circuit and the board on another. 2) - Does the interface have an option for DC power ...
1 vote

Using hum to find edit points - will it work with high quality recordings?

This technique has nothing to do with "removing" hum from recordings - it's all about using the very slight - but trackable - variations in mains frequency (50Hz or 60Hz depending on where you are) - ...
  • 8,548

Only top scored, non community-wiki answers of a minimum length are eligible