GQRX No audio Linux

[Tech2025]

Everything looks fine, signals are coming in super strong, waterfall looks flawless. Audio is set up to 100% for application and system sounds.

[Andrew Rich]

Screen grab ? 

Sent from my iPhone

On 8 Aug 2017, at 11:02 pm, Tech2025 <ibrea...@gmail.com> wrote:

Everything looks fine, signals are coming in super strong, waterfall looks flawless. Audio is set up to 100% for application and system sounds.

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[Alexander Fasching]

Have you set a demodulator in the "Receiver Options" tab?

On 08/08/2017 03:02 PM, Tech2025 wrote:
> Everything looks fine, signals are coming in super strong, waterfall
> looks flawless. Audio is set up to 100% for application and system sounds.
>

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[Vladimir Chepyzhenko]

CW-U - demodulator setting. Audio no.

вторник, 8 августа 2017 г., 16:14:11 UTC+3 пользователь Alexander F. написал:

[Andrew Rich]

Set agc to slow not off 

Sent from my iPhone

On 31 Aug 2017, at 6:20 pm, Vladimir Chepyzhenko <geo...@gmail.com> wrote:

CW-U - demodulator setting

вторник, 8 августа 2017 г., 16:14:11 UTC+3 пользователь Alexander F. написал:

Have you set a demodulator in the "Receiver Options" tab?

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[Andrew Rich]

Bet your agc is off 

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[Robin Gape]

Adding to Andrew's suggestion:

1) if the AGC is set to off, there is a manual gain control in the settings panel (select from … button to right of AGC button). The default setting for gain is 0dB, which sounds like muting, except perhaps on a very strong signal.

2) it's also possible that there is an audio misconfiguration. Try checking pulseaudio sound settings, which show output device selected, and also active audio streams, for example:

and

HTH, 73,

Robin, G8DQX

[Andrew Rich]

Agc as in audio not rf 

Sent from my iPhone

On 31 Aug 2017, at 8:32 pm, 'Robin Gape' via Gqrx SDR <gq...@googlegroups.com> wrote:

Adding to Andrew's suggestion:

1) if the AGC is set to off, there is a manual gain control in the settings panel (select from … button to right of AGC button). The default setting for gain is 0dB, which sounds like muting, except perhaps on a very strong signal.

<Screenshot from 2017-08-31 11:23:21.png>

2) it's also possible that there is an audio misconfiguration. Try checking pulseaudio sound settings, which show output device selected, and also active audio streams, for example:

<Screenshot from 2017-08-31 10:55:30.png>

and

<Screenshot from 2017-08-31 10:54:48.png>

HTH, 73,

Robin, G8DQX

On 31/08/17 10:53, Andrew Rich wrote:

Bet your agc is off 

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[Andrew Rich]

Please be aware 

I have reported this several times and been ignored

Setting the rf gain to 90 in the presence of a strong signal

And the audio agc set to off there is no audio

Setting the audio agc to not off works

Please don't confuse the two

Sent from my iPhone

[Alexandru Csete]

On Thu, Aug 31, 2017 at 12:40 PM, Andrew Rich <vkt...@gmail.com> wrote:
> Please be aware
>
> I have reported this several times and been ignored

You have reported it twice, and both times I have actually spent time
trying to explain it to you:

https://github.com/csete/gqrx/issues/545
https://github.com/csete/gqrx/issues/553

What do you want me to do in order to not feel ignored?

> Setting the rf gain to 90 in the presence of a strong signal
>
> And the audio agc set to off there is no audio
>
> Setting the audio agc to not off works
>
> Please don't confuse the two

Now also Robin has explained even with screenshots, that when you
switch AGC OFF, you have to adjust the manual gain. If the manual gain
is too low, the audio signal will be too low.

Alex

[Andrew Rich]

I'll say it again

Hardware agc off dongle

Rf gain set to 90 dongle

Audio gain set to 90 gqrx

Mode set to cw gqrx

Audio agc set to off gqrx

No audio

Audio agc set to slow 

Audio

It used to receive with audio agc set to off

Sent from my iPhone

[Alexander Fasching]

I can't set audio gain to 90. The maximum is 50dB.

Are you, by any chance, setting the gain in the AGC settings and not the
audio gain? You need to set it in the Audio dock widget.

On 08/31/2017 01:44 PM, Andrew Rich wrote:
> I'll say it again
>
> Hardware agc off dongle
> Rf gain set to 90 dongle
> Audio gain set to 90 gqrx
> Mode set to cw gqrx
> Audio agc set to off gqrx
> No audio
>
> Audio agc set to slow
> Audio
>
> It used to receive with audio agc set to off
>
>
>
>
>
>
>
> Sent from my iPhone
>
> On 31 Aug 2017, at 8:40 pm, Andrew Rich <vkt...@gmail.com

> <mailto:vkt...@gmail.com>> wrote:
>
>> Please be aware
>>
>> I have reported this several times and been ignored
>>
>> Setting the rf gain to 90 in the presence of a strong signal
>>
>> And the audio agc set to off there is no audio
>>
>> Setting the audio agc to not off works
>>
>> Please don't confuse the two
>>
>> Sent from my iPhone
>>
>> On 31 Aug 2017, at 8:34 pm, Andrew Rich <vkt...@gmail.com

>> <mailto:vkt...@gmail.com>> wrote:
>>
>>> Agc as in audio not rf
>>>
>>> Sent from my iPhone
>>>
>>> On 31 Aug 2017, at 8:32 pm, 'Robin Gape' via Gqrx SDR

>>> <gq...@googlegroups.com <mailto:gq...@googlegroups.com>> wrote:
>>>
>>>> Adding to Andrew's suggestion:
>>>>

>>>> *1)* if the *AGC* is set to *off*, there is a *manual gain* control
>>>> in the settings panel (select from *… button* to right of AGC

>>>> button). The default setting for gain is 0dB, which sounds like

>>>> muting, except perhaps on a *very* strong signal.

>>>>
>>>> <Screenshot from 2017-08-31 11:23:21.png>
>>>>

>>>> *2)* it's also possible that there is an audio misconfiguration. Try

>>>> checking pulseaudio sound settings, which show output device
>>>> selected, and also active audio streams, for example:
>>>>
>>>> <Screenshot from 2017-08-31 10:55:30.png>
>>>>
>>>> and
>>>>
>>>> <Screenshot from 2017-08-31 10:54:48.png>
>>>>
>>>> HTH, 73,
>>>>
>>>> Robin, G8DQX
>>>>
>>>>
>>>>
>>>> On 31/08/17 10:53, Andrew Rich wrote:
>>>>> Bet your agc is off
>>>>
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>>>> For more options, visit https://groups.google.com/d/optout.
>

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[Andrew Rich]

Ok I meant 90%



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> <gain.png>

[Andrew Rich]

Hardware AGC off
Rf manual gain 90%
Good strong signals on waterfall
Audio gain 90%
Audio agc off
No audio

Exactly the same

Audio agc slow

Audio comes out

Audio agc off should result in one is to one audio







Sent from my iPhone

> On 31 Aug 2017, at 9:55 pm, Alexander Fasching <faschi...@gmail.com> wrote:
>

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> <gain.png>

[Andrew Rich]

There is rf agc and audio agc

The audio agc is not passing audio when set to off



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> On 31 Aug 2017, at 9:55 pm, Alexander Fasching <faschi...@gmail.com> wrote:
>

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> <gain.png>

[Andrew Rich]

Gqrx does not present audio to the speakers unless the audio agc is set to anything other than off

Sent from my iPhone

> On 31 Aug 2017, at 9:55 pm, Alexander Fasching <faschi...@gmail.com> wrote:
>

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> <gain.png>

[Alexander Fasching]

I still think that the volume is too low for you to hear.

Do you see the spectrum in the audio dock widget?

[Alexandru Csete]

Andrew,

Please stop sending and email every time a thought crosses your mind. You are not only generating a lot of noise, but you are also confusing everybody, including yourself!

Please show some respect and read what people tell you!

> There is rf agc and audio agc

No, there is hardware AGC and software AGC. They are labelled "Hardware AGC" and "AGC" respectively.

> The audio agc is not passing audio when set to off

That's not true.

> Audio agc off should result in one is to one audio

Exactly! So, if the input signal is -100 dB, then the audio will also be -100 dB and that level is too low to hear in the speaker. Increase the manual AGC Gain slider with 60 dB and you get  -40 dB audio, see the screenshot:

​

As you can see on the screenshot, there is plenty of audio on the audio spectrum.

Alex

​

[Andrew Rich]

Yes

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[Vladimir Chepyzhenko EU2AA]

Thank you for answers!
1. I am set AGC SLOW. No results.
2. Mode Narrow FM. Audio no.

Thanks, Robin,
3. I am AGC OFF, hand Settings AGC Gain - 51dB, Threshold - -108dB, Disabled. No results.
4. GQRX: Audio outpu - 150%.
5. Spectrum in audio docs widget no.
6. AGC Settings: Gain - 74dB, Threshold  100dB, Slope - 0dB, Decay 2000ms. Disabled.
7. Waterfall no.
8. FFT.
If FFT size=8192/RBW=2.9Hz. Rate=25fps/Overlap=753%.
If FFT size=512/RBW=46.9Hz. Rate=25fps/Overlap=0%.

ps.Go strong AURORA!

четверг, 31 августа 2017 г., 16:07:34 UTC+3 пользователь Andrew Rich написал:

Yes

[Vladimir Chepyzhenko EU2AA]

Sorry, no results ...

my OpenSUSE Turnbleweed 20170620

четверг, 31 августа 2017 г., 18:35:12 UTC+3 пользователь Vladimir Chepyzhenko EU2AA написал:

[Robin Gape]

Vladimir,

back to the simple stuff. 5. (no audio spectrum) and 7. (no waterfall) in your reply below would indicate that the Play icon has not been activated.

Does the screen look roughly like this?:

If it does, then the Play icon (the Start DSP tooltip) needs activating. (On my system, it can be reluctant to activate, and the cursor needs to be moved around before the icon takes full form and may be activated):

Clicking the icon results in the expected active waterfall and audio spectrum:

HTH

Robin, G8DQX

On 31/08/17 16:35, Vladimir Chepyzhenko EU2AA wrote:

[Vladimir Chepyzhenko EU2AA]

Thank, Robin,
all OK,

73!
четверг, 31 августа 2017 г., 19:53:23 UTC+3 пользователь Robin, G8DQX написал: