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anonymous 5 July 2009

Hi all, this is my first post in the community. Hope you are ok guys.

Here is my problem. Im trying to use my laptop to make some recording using Audacity. To keep the beat for my songs I'm using the default click track funcitonality (basically a metronome) and I start to record my guitar using the microphone port and the headphones. Once Im done, I play back what I have recorded muting the Click track and the metronome's beats are in my song... Here is what I have tried:

1. Disable integrated laptop mic and just enable the external one
2. Start to record without any mic connected. When I do this and play back what the system record, the metronome beat appears in low volume. That's why it can be a feedback problem.
3. Make sure that integrated laptop mic is off.

I'm thiking this is a problem with feed back and electronic earth on laptops... can you please give me some advice or any circuit to avoid this? :(

Thanks a lot

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anonymous Sun, 07/05/2009 - 20:46

Hi Guitarfreak,

Thanks for your welcome message. Yes, my headphones actually have inline transformer and I will keep it away from the guitar pickups. I have a second problem. When I try to record without conecting anything to the mic input the metronome feedback stills in the track, that is:

1. I create the click track
2. I plug out the headphones and guitar
3. Start to record (No sound input)
4. Playback and metronome beat can be hear as a really low sound

Do you think it has something to do with the hardware in the computer (or at least this is my hypotesis) do you have any suggestions about this please :?

Thanks a lot

Guitarfreak Sun, 07/05/2009 - 20:55

My hypothesis is that your mic is plugged into the computer's soundcard, the same soundcard that is generating the metronome click. And as the soundcard creates the click it also creates a ghost click in the other track. It is probably the result of the soundcard not being able to route/process the information properly. That is my best guess.

Hey, just out of curiosity, what kind of mic do you have there?

Codemonkey Mon, 07/06/2009 - 08:27

It's called crosstalk - when your output/input start to leak into each other.

It's also possible that you'll want to check the Windows mixer. Go to the RECORDING view, make sure it's set to the mic input (if you're using the soundcard). You could also check the Playback view - if the mic input is turned up loud there (to come back out your speakers) then that could be the crosstalk problem fixed. But then you can't hear yourself...hmm.

The wonders of onboard sound ;) a simple USB interface could fix most of this but is the first step on a costly ladder.

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