Remove extra noise from ffmpeg video












1














I am using the following command to record the audio and video:



ffmpeg -loglevel warning -y -f v4l2 -s 544x288 -i /dev/video0 -vstats -vstats_file '/home/2014-05-13T07-18-37/left_cam-stats' -f pulse -name 'Unknown source 0' -i alsa_input.pci-0000_00_1b.0.analog-stereo -filter lowpass -f pulse -name 'left_mic 0' -i alsa_input.usb-046d_0823_D81A0330-00-U0x46d0x823_1.analog-stereo  -f pulse -name 'right_mic 1' -i alsa_input.usb-046d_0823_4B709030-00-U0x46d0x823.analog-stereo  -f pulse -name 'default 0' -i default  -f mpegts -crf 20 -r 24 -pix_fmt yuv420p -vcodec libx264 -vprofile baseline -t 02:00:00 -map 0:0 -map 1:0 -map 2:0 -map 3:0 -map 4:0 /home/left_cam.mp4


It record both audio and video from different devices.



But the audio comes with the horrible noise (feed back). I want to remove that noise form the recording.



Is there any way to solve this problem?










share|improve this question
























  • For background noise removal see: askubuntu.com/questions/391798/… and askubuntu.com/questions/429480/…
    – Takkat
    May 13 '14 at 13:24
















1














I am using the following command to record the audio and video:



ffmpeg -loglevel warning -y -f v4l2 -s 544x288 -i /dev/video0 -vstats -vstats_file '/home/2014-05-13T07-18-37/left_cam-stats' -f pulse -name 'Unknown source 0' -i alsa_input.pci-0000_00_1b.0.analog-stereo -filter lowpass -f pulse -name 'left_mic 0' -i alsa_input.usb-046d_0823_D81A0330-00-U0x46d0x823_1.analog-stereo  -f pulse -name 'right_mic 1' -i alsa_input.usb-046d_0823_4B709030-00-U0x46d0x823.analog-stereo  -f pulse -name 'default 0' -i default  -f mpegts -crf 20 -r 24 -pix_fmt yuv420p -vcodec libx264 -vprofile baseline -t 02:00:00 -map 0:0 -map 1:0 -map 2:0 -map 3:0 -map 4:0 /home/left_cam.mp4


It record both audio and video from different devices.



But the audio comes with the horrible noise (feed back). I want to remove that noise form the recording.



Is there any way to solve this problem?










share|improve this question
























  • For background noise removal see: askubuntu.com/questions/391798/… and askubuntu.com/questions/429480/…
    – Takkat
    May 13 '14 at 13:24














1












1








1


2





I am using the following command to record the audio and video:



ffmpeg -loglevel warning -y -f v4l2 -s 544x288 -i /dev/video0 -vstats -vstats_file '/home/2014-05-13T07-18-37/left_cam-stats' -f pulse -name 'Unknown source 0' -i alsa_input.pci-0000_00_1b.0.analog-stereo -filter lowpass -f pulse -name 'left_mic 0' -i alsa_input.usb-046d_0823_D81A0330-00-U0x46d0x823_1.analog-stereo  -f pulse -name 'right_mic 1' -i alsa_input.usb-046d_0823_4B709030-00-U0x46d0x823.analog-stereo  -f pulse -name 'default 0' -i default  -f mpegts -crf 20 -r 24 -pix_fmt yuv420p -vcodec libx264 -vprofile baseline -t 02:00:00 -map 0:0 -map 1:0 -map 2:0 -map 3:0 -map 4:0 /home/left_cam.mp4


It record both audio and video from different devices.



But the audio comes with the horrible noise (feed back). I want to remove that noise form the recording.



Is there any way to solve this problem?










share|improve this question















I am using the following command to record the audio and video:



ffmpeg -loglevel warning -y -f v4l2 -s 544x288 -i /dev/video0 -vstats -vstats_file '/home/2014-05-13T07-18-37/left_cam-stats' -f pulse -name 'Unknown source 0' -i alsa_input.pci-0000_00_1b.0.analog-stereo -filter lowpass -f pulse -name 'left_mic 0' -i alsa_input.usb-046d_0823_D81A0330-00-U0x46d0x823_1.analog-stereo  -f pulse -name 'right_mic 1' -i alsa_input.usb-046d_0823_4B709030-00-U0x46d0x823.analog-stereo  -f pulse -name 'default 0' -i default  -f mpegts -crf 20 -r 24 -pix_fmt yuv420p -vcodec libx264 -vprofile baseline -t 02:00:00 -map 0:0 -map 1:0 -map 2:0 -map 3:0 -map 4:0 /home/left_cam.mp4


It record both audio and video from different devices.



But the audio comes with the horrible noise (feed back). I want to remove that noise form the recording.



Is there any way to solve this problem?







sound ffmpeg noise






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited May 13 '14 at 12:42

























asked May 13 '14 at 12:30









Prakash V Holkar

1,10451226




1,10451226












  • For background noise removal see: askubuntu.com/questions/391798/… and askubuntu.com/questions/429480/…
    – Takkat
    May 13 '14 at 13:24


















  • For background noise removal see: askubuntu.com/questions/391798/… and askubuntu.com/questions/429480/…
    – Takkat
    May 13 '14 at 13:24
















For background noise removal see: askubuntu.com/questions/391798/… and askubuntu.com/questions/429480/…
– Takkat
May 13 '14 at 13:24




For background noise removal see: askubuntu.com/questions/391798/… and askubuntu.com/questions/429480/…
– Takkat
May 13 '14 at 13:24










1 Answer
1






active

oldest

votes


















0














Using Sox you can you can reduce noice.



Sox can be installed with :



sudo apt-get install sox


To use sox, you can follow this article at www.zoharbabin.com.



Or:



For direct use with ffmpeg you can try following code.



Source :ubuntuforums.org



ffmpeg -i input.avi -vcodec libx264 -crf 24 -preset slow -filter:v hqdn3d=4.0:3.0:6.0:4.5 -acodec aac -strict experimental -ab 192k output.mp4





share|improve this answer

















  • 1




    please explain which flags in the command are enabling noise reduction.
    – xiota
    May 27 at 16:22











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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









0














Using Sox you can you can reduce noice.



Sox can be installed with :



sudo apt-get install sox


To use sox, you can follow this article at www.zoharbabin.com.



Or:



For direct use with ffmpeg you can try following code.



Source :ubuntuforums.org



ffmpeg -i input.avi -vcodec libx264 -crf 24 -preset slow -filter:v hqdn3d=4.0:3.0:6.0:4.5 -acodec aac -strict experimental -ab 192k output.mp4





share|improve this answer

















  • 1




    please explain which flags in the command are enabling noise reduction.
    – xiota
    May 27 at 16:22
















0














Using Sox you can you can reduce noice.



Sox can be installed with :



sudo apt-get install sox


To use sox, you can follow this article at www.zoharbabin.com.



Or:



For direct use with ffmpeg you can try following code.



Source :ubuntuforums.org



ffmpeg -i input.avi -vcodec libx264 -crf 24 -preset slow -filter:v hqdn3d=4.0:3.0:6.0:4.5 -acodec aac -strict experimental -ab 192k output.mp4





share|improve this answer

















  • 1




    please explain which flags in the command are enabling noise reduction.
    – xiota
    May 27 at 16:22














0












0








0






Using Sox you can you can reduce noice.



Sox can be installed with :



sudo apt-get install sox


To use sox, you can follow this article at www.zoharbabin.com.



Or:



For direct use with ffmpeg you can try following code.



Source :ubuntuforums.org



ffmpeg -i input.avi -vcodec libx264 -crf 24 -preset slow -filter:v hqdn3d=4.0:3.0:6.0:4.5 -acodec aac -strict experimental -ab 192k output.mp4





share|improve this answer












Using Sox you can you can reduce noice.



Sox can be installed with :



sudo apt-get install sox


To use sox, you can follow this article at www.zoharbabin.com.



Or:



For direct use with ffmpeg you can try following code.



Source :ubuntuforums.org



ffmpeg -i input.avi -vcodec libx264 -crf 24 -preset slow -filter:v hqdn3d=4.0:3.0:6.0:4.5 -acodec aac -strict experimental -ab 192k output.mp4






share|improve this answer












share|improve this answer



share|improve this answer










answered May 13 '14 at 12:53







user224082















  • 1




    please explain which flags in the command are enabling noise reduction.
    – xiota
    May 27 at 16:22














  • 1




    please explain which flags in the command are enabling noise reduction.
    – xiota
    May 27 at 16:22








1




1




please explain which flags in the command are enabling noise reduction.
– xiota
May 27 at 16:22




please explain which flags in the command are enabling noise reduction.
– xiota
May 27 at 16:22


















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