Concealedfox70
Posts: 16
Joined: Fri May 04, 2018 11:55 am

microphone volume needs boosted 30db+ please help

Mon May 14, 2018 1:19 pm

i have a small creative usb sound card that came with a headset plugged into my raspberry pi running raspbian. how do i boost it that much? i tried the alsa mixer but that didnt do much. i need a lot of boost. the mic came from a bluetooth car radio and was quiet in that application as well. im stuck on using it because when i boost the recorded volume in audacity it sounds very good for my budget.ive already tried full volume and full boost via alsa mixer no result.

my end goal will be to have the mic streamed to my desktop over the internet. if possible i would like to average the gain to -3-6db constant. so will need help with that as well. much appreciated in advance

HiassofT
Posts: 297
Joined: Fri Jun 30, 2017 10:07 pm
Location: Salzburg, Austria
Contact: Website

Re: microphone volume needs boosted 30db+ please help

Mon May 14, 2018 1:31 pm

You can use the alsa softvol plugin. See here for details viewtopic.php?t=204133#p1267389 - make sure to replace the card name in slave.pcm and control.card with the name of soundcard you use.

so long,

Hias

Concealedfox70
Posts: 16
Joined: Fri May 04, 2018 11:55 am

Re: microphone volume needs boosted 30db+ please help

Fri May 18, 2018 9:23 pm

HiassofT wrote:
Mon May 14, 2018 1:31 pm
You can use the alsa softvol plugin. See here for details viewtopic.php?t=204133#p1267389 - make sure to replace the card name in slave.pcm and control.card with the name of soundcard you use.

so long,

Hias
how do i install and use softvol. i cant find a download or package name that works with apt-get

daffydd
Posts: 3
Joined: Wed May 16, 2018 10:53 pm

Re: microphone volume needs boosted 30db+ please help

Fri May 18, 2018 9:43 pm

Concealedfox70 wrote:
Mon May 14, 2018 1:19 pm
i have a small creative usb sound card that came with a headset plugged into my raspberry pi running raspbian. how do i boost it that much?
...
Perhaps the mic needs a preamp? Mic level is far below line level.

Concealedfox70
Posts: 16
Joined: Fri May 04, 2018 11:55 am

Re: microphone volume needs boosted 30db+ please help

Mon May 21, 2018 4:03 am

daffydd wrote:
Fri May 18, 2018 9:43 pm
Concealedfox70 wrote:
Mon May 14, 2018 1:19 pm
i have a small creative usb sound card that came with a headset plugged into my raspberry pi running raspbian. how do i boost it that much?
...
Perhaps the mic needs a preamp? Mic level is far below line level.
I have no room for it. Application is very compact. If i record and amplify and play back in audacity I can't even tell. Low static sounds like it's in the room talking like the original person.

Also switched to Ubuntu mate and pulse audio equalizer now works like a charm where in raspbian not so much

Concealedfox70
Posts: 16
Joined: Fri May 04, 2018 11:55 am

Re: microphone volume needs boosted 30db+ please help

Sun Jun 03, 2018 8:49 pm

Still waiting for a fix

HiassofT
Posts: 297
Joined: Fri Jun 30, 2017 10:07 pm
Location: Salzburg, Austria
Contact: Website

Re: microphone volume needs boosted 30db+ please help

Mon Jun 04, 2018 3:41 pm

Concealedfox70 wrote:
Fri May 18, 2018 9:23 pm
how do i install and use softvol. i cant find a download or package name that works with apt-get
No need to download anything, the softvol plugin is part of the core alsa library (libasound2).

so long,

Hias

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