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#1 2016-03-22 12:00:49

stackoverflow
Member
Registered: 2015-09-23
Posts: 43

low sound volume when recording video with kazam or ffmpeg

hi every body
i want to record some series of video-casts for bbs.archusers.ir and i have some problem:
1-i use KAZAM to record video and audio simultansly but the recorded video has "very low" sound so i hardly hear my voice.
2- i decied to try ffmpeg and walk throgh:
here
but output sound is very low sad
i use this code to record:

ffmpeg -video_size 1024x768 -framerate 25 -f x11grab -i :0 -f pulse -ac 2 -i default output.mkv

and this is my default sample rate:

[saeed@saeed ~]$ grep "default-sample-rate" /etc/pulse/daemon.conf
default-sample-rate = 96000

any idea?
thanks so much..

Last edited by stackoverflow (2016-03-22 12:03:03)

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#2 2016-03-26 06:18:28

onslow77
Member
Registered: 2014-09-21
Posts: 279

Re: low sound volume when recording video with kazam or ffmpeg

Hello!

If you use pulseAudio with Alsa:
- What is your audio recording levels set at in "alsamixer"?

If you use pulseAudio with oss:
- What is your audio recording levels set at in "ossmix"?

Regards
Martin

Last edited by onslow77 (2016-03-26 06:23:45)


It is advised to follow the How to post guide when posting on the Arch forum. If one consciously jumps over these elementary steps like reading the wiki and providing necessary information about the problem, one can be regarded as a Help Vampire.

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#3 2016-03-26 06:23:16

jasonwryan
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From: .nz
Registered: 2009-05-09
Posts: 30,424
Website

Re: low sound volume when recording video with kazam or ffmpeg

Buy a decent microphone. If you are using a standard USB headset-type setup, it will sound terrible, irrespective of what system settings you use.


Arch + dwm   •   Mercurial repos  •   Surfraw

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#4 2016-03-26 06:32:30

onslow77
Member
Registered: 2014-09-21
Posts: 279

Re: low sound volume when recording video with kazam or ffmpeg

jasonwryan wrote:

Buy a decent microphone. If you are using a standard USB headset-type setup, it will sound terrible, irrespective of what system settings you use.

Hello jasonwryan!

No matter what microphone he/she uses the recording levels must be sat at a correct level. A good microphone can not compensate for wrong input levels.

Regards
Martin

Last edited by onslow77 (2016-03-26 06:36:52)


It is advised to follow the How to post guide when posting on the Arch forum. If one consciously jumps over these elementary steps like reading the wiki and providing necessary information about the problem, one can be regarded as a Help Vampire.

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