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Very low signal while recording acoustic guitar


AlexanderHuerta88

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Hello, as the topic says I do get a very low signal, which you can see in the picture below.

 

I am using this https://www.presonus.com/products/AudioBox-USB and I have only found good information on this

product on google searches and so on.

 

All the things I've tried:

 

- I have tried to have the mic on several positions

- I have the XLR cable on slot 1 [Mic] (Plugged into the microphone ofc :mrgreen: )

- I have tried two different XLR cables

- I have tried two microphones [The M7 that came along and an SM58 mic]

- The 48V button is pressed and shining red

- The knob for the Mic slot is at about 70~% of max (am having alot of white noice if I use more than that)

- The main/gain knob is at about the same amount of power, 70~%

 

Working on a Mac Mini 2.6Ghz using Logic Pro X

 

 ~ Any little tip would be of Much appreciation.

 

Thanks in advance and hope we can solve this riddle :D

 

/Alexander

1289256230_Skrmavbild2015-05-25kl_22_27_06.png.ca14dea9b7ee27605f21416002769ce3.png

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- I have tried to have the mic on several positions

How far is the mic from the guitar? To troubleshoot this issue, try placing the mic pointed right at your strumming hand, about 5-10" from the sound hole.

 

- I have the XLR cable on slot 1 [Mic]

Try input 2, just to rule out any potential issue with the preamp in input 1.

 

- I have tried two microphones [The M7 that came along and an SM58 mic]

- The 48V button is pressed and shining red

For this test, turn off 48V and use the SM58.

 

- The knob for the Mic slot is at about 70~% of max (am having alot of white noice if I use more than that)

You should be able to raise that knob more than 70% without unmanageable amounts of white noise. Do you still hear white noise even when nothing is connected to that input?

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Ty for your answers guys !

 

David:

The mic is at about 4-5" away from the guitar. The sound is to low if I have it any further way..

 

I did try input 2, but I get an even lower signal if I use that :mrgreen:

 

If I have 48V turned off, nothing gets recorded

 

I am not hearing any white noise if I remove the cable from input one...

 

Strat71:

 

Zooming up the waveforms would solve the fact that they are small, but not the reason for it :(

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If I have 48V turned off, nothing gets recorded

 

The idea is that you try the SM58 and for that you turn off the phantom power.

 

I am not hearing any white noise if I remove the cable from input one...

 

Crank the gain on the presonus, put it on maximum. Do you hear white noise?

 

The mic is at about 4-5" away from the guitar. The sound is to low if I have it any further way..

 

Put the mic closer.

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