To extract the audio stream from a video file using ffmpeg, open a terminal window and enter the following command: $ ffmpeg -i file.avi -vn -ab 256k -ar 48000 -y file.mp3 <enter> Note that the values 256 and 48000 in the above example can be changed per convenience.
Category: Multimedia
How to extract Opus audio from MKV file
To extract the opus audio from mkv file, open a terminal window and enter the following command: $ ffmpeg -i Attention.mkv -acodec copy -vn audio.opus <enter>
How to find out the audio stream using ffmpeg in .mkv file
To find out the audio stream in the .mkv file using ffmpeg, open a terminal window and enter the following command: $ ffmpeg -i aaa.mkv <enter>
Clipgrab to download videos from online streaming sites
Use Clipgrap from https://clipgrab.org/ to download videos for offline viewing from sites like youtube.com. It supports a heap of other sites too. The list is at https://clipgrab.org/faqs/supported-sites
How to restore music file names from iPod on a Linux computer
After copying music to the iPod, file names and folder names of the music files change to 4 characters with mp3 after them. Unfortunately, these do not identify the music file on an Android device or even the PC. Similarly, folder names too are changed. Could not find a way to get back the folder … Continue reading How to restore music file names from iPod on a Linux computer
Create a VCD from mp4 or mkv files using devede and cdrdao in Linux
At times, we need to create a VCD from any video files we may have saved, like those from cell phones. Those files are already in the MP4 or MKV format. Fortunately, it is easy to create VCDs from such files using devede. 1. Transfer the mp4 or mkv files to the computer. 2. Start … Continue reading Create a VCD from mp4 or mkv files using devede and cdrdao in Linux
Error Couldn’t open DVD device: /dev/dvd (No such file or directory)
Below error appears when creating a avi out of a DVD, is an mencoder error: MEncoder 1.1-4.8 (C) 2000-2012 MPlayer Team libdvdread: Can't stat /dev/dvd No such file or directory libdvdread: Could not open /dev/dvd Couldn't open DVD device: /dev/dvd (No such file or directory) No stream found to handle url dvd://2 Cannot open file/device. … Continue reading Error Couldn’t open DVD device: /dev/dvd (No such file or directory)
Where did ffmpeg on Ubuntu 14.04 LTS go? Use avconv instead
ffmpeg was replaced by libav on the new Ubuntu package list. It is similar, though. ffmpeg -> avconv ffplay -> avplay ffserver -> avserver You can still convert media files using avconv in place of ffmpeg. To install avconv, open a terminal window and type following commands:$ sudo apt-get install libav-tools <enter>
How to convert VCD to MP4 using mplayer in Linux
If you have a VCD and need to create an MP4 file of it's content, use mplayer to do so. If you install just mplayer, you will not get --dumpstream or --dumpfile. To get those parameters, you need to open a terminal window and install mplayer2 as follows:$ sudo apt-get install mplayer2 <enter> Open a … Continue reading How to convert VCD to MP4 using mplayer in Linux
Extract the audio from an MP4 video file using avconv
At times, we would like to extract the audio from an MP4 video file. To do this in Linux, open a terminal window in Ubuntu and use the utility called avconv as follows:$ avconv -i MyVideoFile.mp4 -vn -acodec copy MyAudioFile.aac <enter> where, MyVideoFile.mp4 is your mp4 video file. You can then listen to the MyAudioFile.aac … Continue reading Extract the audio from an MP4 video file using avconv
