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>

. . . → Read More: How to extract Opus audio from MKV file

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>

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 . . . → Read More: Extract the audio from an MP4 video file using avconv

How to connect laptop to TV with HDMI in Xubuntu

Connect the HDMI cable – one end to PC and one end to laptop. Then switch on TV and select the Video Input as HDMIx where x is the HDMI port you have connected your laptop or computer to the TV.

Select Settings Manager -> Display and you will see HDMI as one of the . . . → Read More: How to connect laptop to TV with HDMI in Xubuntu

15 band equalizer with Pulseaudio Equalizer in Linux

You can get a 15 band sound equalizer on Linux. Looking around for presets for mplayer yielded no success on the internet. Finally, chanced upon pulseaudio equalizer project. You can install it on Fedora using:

# yum install pulseaudio-equalizer <enter>

After that, run it from the Sound and Video applications on your desktop. You can . . . → Read More: 15 band equalizer with Pulseaudio Equalizer in Linux

Convert audio CD to MP3 using Sound Converter in Ubuntu

While there are many tools to convert audio CD’s from one format to another, here’s another way to convert audio CDs to MP3 in Ubuntu.

Insert the audio CD you want to convert in the CD drive Copy the tracks on the audio CD to wav files using: $ cdparanoia -B <enter>

To convert to . . . → Read More: Convert audio CD to MP3 using Sound Converter in Ubuntu

5.1 Surround Sound in Linux – Gnome MPlayer

You can get full 5.1 surround sound in Linux using Gnome MPlayer. Here is what needs to be done.

Install Gnome MPlayer and mplayer following the instructions using your distribution’s repository. Visit http://www.lynnemusic.com/surround.html to download a 5.1 surround sound audio file to test the settings. Start up Gnome Mplayer. Select Edit -> Preferences from the . . . → Read More: 5.1 Surround Sound in Linux – Gnome MPlayer

USB sound card for laptops without 3.5 mm headset jacks

After damage to 2 high end Logitech headsets I owned after the use of unbranded USB sound cards, I finally settled for an economical, higher end USB sound card. The Steel Series Siberia USB Sound card. It is advertised as a very good card for gaming, but I also found it most suited for use . . . → Read More: USB sound card for laptops without 3.5 mm headset jacks

Extract audio from DVD

There are 2 methods: # mplayer vcd://04 -cdrom-device /dev/sr0 -dumpaudio -dumpfile /tmp/track04.mp3 <enter> # transcode -i /dev/dvd -x dvd -T 1,-1 -a 0 -y wav -m track01.wav <enter> # bladeenc -256 -rawfreq=48000 track01.wav track01.mp3 <enter>

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