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This question already has an answer here:

I have seen this question: How to Record Screen and internal Audio?

The answers given here is to install recordmydesktop. I have installed it but it does not work. It gives a error message just after selecting the screen area.

Also I have many screen recorder applications but none works perfectly. Some records the screen but not the audio. eg EasyScreenCast. I would like to know how to record screen with audio.

marked as duplicate by Charles Green, David Foerster, waltinator, Eric Carvalho, Videonauth Nov 12 '17 at 0:21

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • Did you try any of the suggestions in the other answers of the linked question? – David Foerster Nov 11 '17 at 0:02
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If RecordMyDesktop does not work properly for you, you can use a script instead.

The script can be found here on GitHub.

To use, copy the script into a text file (use your favourite text editor) and save it in your home directory. Give the script execute permission

chmod 755 name-of-your-file

Then you can execute it easily:

./name-of-your-file

The script:

#!/bin/bash

NAME=screencast-$(date +%Y%m%d%H%M)
FPS=4
THREADS=3

echo "Click the window to capture and get ready!"

tmpfile=/tmp/screengrab.tmp.$$
trap 'touch $tmpfile; rm -f $tmpfile' 0

xwininfo > $tmpfile 2>/dev/null
left=$(grep 'Absolute upper-left X:' $tmpfile | awk '{print $4}');
top=$(grep 'Absolute upper-left Y:' $tmpfile | awk '{print $4}');
width=$(grep 'Width:' $tmpfile | awk '{print $2}');
height=$(grep 'Height:' $tmpfile | awk '{print $2}');
geom="-geometry ${width}x${height}+${left}+${top}"
echo "Geometry: ${geom}"
size="${width}x${height}"
pos="${left},${top}"
echo "pos=$pos size=$size"

sleep 2
ffmpeg -y -f alsa -ac 2 -i pulse -f x11grab -r $FPS -s $size -i ${DISPLAY-0:0}+${pos} -acodec pcm_s16le $NAME-temp.wav -an -vcodec libx264 -preset ultrafast -threads 0 $NAME-temp.mp4

echo Merge audio+video and encode to webm for YouTube? && read

ffmpeg -i $NAME-temp.mp4 -i $NAME-temp.wav -acodec libvorbis -ab 128k -ac 2 -vcodec libvpx -qscale 8 -me_method full -mbd rd -flags +gmc+qpel+mv4 -trellis 1 -threads $THREADS $NAME.webm

Usage is also demonstrated in this YouTube video.

Editor's note: please do not give security-risk 777 permissions to the file as shown in the video. 755 will be more than sufficient.

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