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ev56o
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Joined: 26 Jan 2010
Posts: 146

PostPosted: Wed Feb 13, 2013 11:18 am    Post subject: Set levels on jack Reply with quote

Hi!
I have a problem with Jack, i can' t set the volume of microphone.
I follow this procedure:
set pulseaudio to off
start jack
connect microphone to speaker
set the volume an alsa

i hear only a frush with no voice, usually it works but now not.
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aCOSwt
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Joined: 19 Oct 2007
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PostPosted: Wed Feb 13, 2013 1:12 pm    Post subject: Reply with quote

1/ when mentioning jack, do you mean the jack audio connection kit ?

2/ If yes to 1/ then please do consider that jack is no more no less than : What is is !
That is to say : A sound server ! A sound server period, I mean.
=> while it can happily deal with that sort of things, it has absolutely *nothing* to do with an equalizer, mixer, amplifier, resampler or whatever sound transformation stuff.

The *only* pupose of Jack is to push as an input to something else (than jack) nothing but exactly and precisely the data it received from another something else.
=> Do not look for level adjustments knobs on jack !

=> Adjust the levels either from the application you connected as an input to jack or adjust the levels on the mixer you connected as an ouput to jack.
(this provided you made sure the connections are actually made)
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ev56o
Tux's lil' helper
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Joined: 26 Jan 2010
Posts: 146

PostPosted: Tue Feb 19, 2013 10:50 am    Post subject: Reply with quote

Yes this is true.
But i don' t understand how to do for hear my voice.
I use only jack and his connection microphone e speakers, here a frush in the speakers and alsamixer doesn' t work for the levels.
How to do for use only microphone, speakers, alsa and jack?
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ev56o
Tux's lil' helper
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Joined: 26 Jan 2010
Posts: 146

PostPosted: Thu Feb 21, 2013 10:32 am    Post subject: Reply with quote

Can i have some help please?
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aCOSwt
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PostPosted: Thu Feb 21, 2013 1:11 pm    Post subject: Reply with quote

ev56o wrote:
Can i have some help please?

I am afraid there's quite a lot of things I do not understand.

1/ What do you want to achieve there ?
- Use the Jack audio connection kit ?
- Playback what you are recording irrespective of the tools ?
- Playback what you are recording thanks to jack ?
- What do you use pulseaudio for ? Is there some sense somewhere for you in getting pulse & jack on the same system ?

2/
ev56o wrote:
here a frush in the speakers

What do you mean ?
- Noise and only noise ?
- Your voice + noise ?
- Your voice somehow distorted + clicks, clangs, clongs, blips ?

3/ In the case you want to use jack, did you install qjackctl ?

4/ Do you get a $HOME/.asoundrc or a /etc/asound.conf ? If yes list them !

5/ What happens when you aplay whatever sound file ? When you arecord... Is your alsamixer working fine in these cases ?

6/ Are you working under console or under whatever DE ?

Well... come on ! Help us helping you !
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ev56o
Tux's lil' helper
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Joined: 26 Jan 2010
Posts: 146

PostPosted: Fri Feb 22, 2013 2:22 pm    Post subject: Reply with quote

I want to hear my voice in the headphones using low level programs like jack and alsa. For frush i mean that background noise you can here in the while you link the connection.
I have a screenshot i want to post but i don' t have the function on the forum.
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ev56o
Tux's lil' helper
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Joined: 26 Jan 2010
Posts: 146

PostPosted: Tue Feb 26, 2013 10:37 am    Post subject: Reply with quote

Can i have some help please?
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