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Trbo lapel mic audio quality

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efc
Posts: 156
Joined: Thu Mar 16, 2006 8:42 pm
What radios do you own?: cdm 1250

Trbo lapel mic audio quality

Postby efc » Wed Apr 23, 2014 5:55 am

Hello,anyone had a problem with a PMMN 4050A microphone,on a XPR6550,and the audio in digital goes high low.The radio is good without Mic.Just wondering.
Thanks
John
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escomm
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Re: Trbo lapel mic audio quality

Postby escomm » Wed Apr 23, 2014 7:33 am

What are your audio settings? Suppressor turned on/off? AF Suppressor turned on/off? Distortion control turned on/off?
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efc
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Re: Trbo lapel mic audio quality

Postby efc » Thu Apr 24, 2014 4:43 am

Supression on,distortion on.
John
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efc
Posts: 156
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Re: Trbo lapel mic audio quality

Postby efc » Thu Apr 24, 2014 4:44 am

AF suppresion on.Mic AGC off,Digital AGC,and analog AGC off.
John
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efc
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Re: Trbo lapel mic audio quality

Postby efc » Thu Apr 24, 2014 4:46 am

Digital Mic gain was at 16 db,then 6,then 22 because they said that the volume was too low on the receiving end.
John
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RFguy
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Re: Trbo lapel mic audio quality

Postby RFguy » Thu Apr 24, 2014 5:42 am

Using gain to make up for poor procedures (not talking directly into the mic) can be problematic.

Digital is a new breed and user training is more important than ever. If the radio doesn't have enough audio level to process, audio quality will suffer.
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escomm
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Re: Trbo lapel mic audio quality

Postby escomm » Thu Apr 24, 2014 7:06 am

Turn suppression off. That's a noise canceling mic. Don't need audio processing IMHO. Found the same issue with a customer using those mics in analog and they said it improved quality
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efc
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Re: Trbo lapel mic audio quality

Postby efc » Mon Apr 28, 2014 6:46 pm

Thanks,I will check it out tomorrow,and let you know.
John
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efc
Posts: 156
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Re: Trbo lapel mic audio quality

Postby efc » Tue May 06, 2014 7:21 pm

Found out that I needed the NNTN 8383 Mic for their environment.
John
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escomm
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Re: Trbo lapel mic audio quality

Postby escomm » Wed May 07, 2014 6:17 am

So they're using their radios in the shower?
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RFguy
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Re: Trbo lapel mic audio quality

Postby RFguy » Wed May 07, 2014 7:01 am

The NNTN8383 INC (or NNTN8382 if no earjack is required) mic is amazing. We just did some testing in high noise and it was extremely impressive. We found having AGC turned on worked the best over different noise situations.
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