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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
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)

onslow77

Member

Registered: 2014-09-21

Posts: 283

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)

jasonwryan

Anarchist

From: .nz

Registered: 2009-05-09

Posts: 30,426

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.

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onslow77

Member

Registered: 2014-09-21

Posts: 283

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.

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)