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Audio level [closed]

asked 2017-02-24 16:08:01 +0200

M6NBP gravatar image

updated 2017-03-17 09:33:00 +0200

pd0mz gravatar image

BM can you make a webpage up for us all to set the TX audio levels.


You enter your ID number so the system know its you when you TX

Go to TG xxxx and Talk

A Bar meter with Low, Average, Good, High, Ex-stream.

(Audio levels should be set for Radios like MD380 that have preset levels and can not change)

Advice why to turn AGC off

Even if it helped users know how far away to hold the mic for that perfect audio level.


Hopping if this can be done we can get all sounding good and no need to keep turning the volume knob.


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Closed for the following reason not a real question by pd0mz
close date 2017-04-21 01:09:38.633319

3 Answers

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answered 2017-02-28 02:42:41 +0200

this post is marked as community wiki

This post is a wiki. Anyone with karma >750 is welcome to improve it.

Can you listen to yourself via the brandmeister hoseline via your computer's browser and create a baseline from others you hear on the same talk group? You can use the Parrot group call and listen to your audio levels as the hoseline hears you.

Also, you can flash the md380 tools on your MD380 radio and it has a gauge for audio as you speak that can be enabled.

If you have a rtl-sdr you can also watch your transmit levels graphically with a linux program called FREQShow to determine your audio levels db. Basically it is a poor man's spectrometer.

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answered 2017-03-05 19:00:08 +0200

pd0mz gravatar image

Working on an audio level meter for Hoseline, here is a sneak preview of the development version:

image description

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Looking good. I feel something a tad more simple with a Default base line to aim for

M6NBP gravatar imageM6NBP ( 2017-03-06 14:51:00 +0200 )edit

Baseline is same as all other digital audio. The scale is always in dB relative to full scale (at which point the audio will be clipping). The sweet spot is around -18dBFS average peak which should be approx 0dBv. I will add an indicator.

pd0mz gravatar imagepd0mz ( 2017-03-10 08:12:49 +0200 )edit

answered 2017-02-25 16:57:01 +0200

N1IRL gravatar image

There is already one there in the BM Hoseline page. An analog meter and an LED graph.

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I was hopping for something much better than what Hoseline offers. To get all on an even audio level this does not come close. It is a starting point to build on.

M6NBP gravatar imageM6NBP ( 2017-02-25 18:43:54 +0200 )edit

I agree, it is not even close. Beside this. The analog meter readout depends on the AGC setting, so there is no way to tell if you are to loud or to quiet.

pe1pts gravatar imagepe1pts ( 2017-02-26 19:27:58 +0200 )edit

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Asked: 2017-02-24 16:08:01 +0200

Seen: 314 times

Last updated: Mar 05 '17