Commands tagged volume (10)

  • Normalize volume output in MPlayer

    Works really well for playing DVDs, which have the volume turned way down for some reason. The `2' method is better IMHO because it will adjust to changing loud/soft parts. If you want to add it to your ~/.mplayer/config: # format: volnorm[=method:target] # method: # 1: use single sample (default) # 2: multiple samples # target: # default is 0.25 af-add=volnorm=2:0.75


    3
    mplayer -af volnorm=2:0.75 dvd://
    h3xx · 2011-07-24 07:26:51 14
  • Normalize volume in your mp3 library

    This normalizes volume in your mp3 library, but uses mp3gain's "album" mode. This applies a gain change to all files from each directory (which are presumed to be from the same album) - so their volume relative to one another is changed, while the average album volume is normalized. This is done because if one track from an album is quieter or louder than the others, it was probably meant to be that way.


    2
    find . -type f -name '*.mp3' -execdir mp3gain -a '{}' +
    Mikelifeguard · 2010-03-21 22:23:44 4
  • Create named LUKS encrypted volume

    You need to be root to do this. So check the command before running it. You enter the same password for Enter LUKS passphrase: Verify passphrase: Enter passphrase for /dev/loopn: ___ You can then copy the .img file to somewhere else. Loop it it with losetup -f IMAGENAME.img and then mount it with a file manager (eg nemo) or run mount /dev/loopn /media/mountfolder Acts similar to a mounted flash drive Show Sample Output


    2
    edrv() { N=${1:-edrv}; truncate -s ${2:-256m} $N.img && L=$(losetup -f) && losetup $L $N.img && cryptsetup luksFormat --batch-mode $L && cryptsetup luksOpen $L $N && mkfs.vfat /dev/mapper/$N -n $N; cryptsetup luksClose $N; echo losetup -d $L to unmount; }
    snipertyler · 2014-02-24 01:38:21 11
  • PulseAudio: set the volume via command line

    If you have more than one SINK


    1
    pactl set-sink-volume @DEFAULT_SINK@ +5%
    wdog · 2018-12-19 10:26:30 38
  • PulseAudio: set the volume via command line

    This command sets the volume for the main PulseAudio "sink" (usually the ALSA output interface) to the maximum, 100% (the 0x10000 in the command). To set it to an arbitrary volume, replace 10000 with the volume you want times 100 (so 75% becomes 7500).


    0
    pacmd set-sink-volume 0 0x10000
    andycandet · 2012-07-17 15:02:56 5
  • sets volume via command line

    adjusts the 'Master' channel's volume up by 1dB. Can use command 'amixer' to see other channels : Simple mixer control 'Master',0 or Simple mixer control 'Capture',0 Show Sample Output


    0
    amixer -c 0 set Master 1dB+
    chrisp6825 · 2013-07-25 15:28:45 11
  • change the volume with the pront

    to run write: Sound-volume 30% or Sound-volume 1% Sound-volume 100% Show Sample Output


    0
    alias Sound-volume='amixer -D pulse sset Master '
    asdzxc · 2015-02-08 11:36:44 11
  • PulseAudio: set the volume via command line

    Command to raise the volume. From https://wiki.archlinux.org/index.php/PulseAudio#Keyboard_volume_control


    0
    pactl set-sink-mute 0 false ; pactl set-sink-volume 0 +5%
    MaxLanar · 2017-05-13 13:02:50 20
  • Quickly check a device in a LVM volume group against multipath

    This is an easy way to quickly get a status for a device in multipath on SLES systems, as long as the server is configured based on Novell's standards, where multipathed disks are referred to by /dev/disk/by-... tree. Make sure to replace name_of_vg with your Volume Group name.


    -1
    pvscan | awk '/name_of_vg/ {print $2}' | sed 's/[-|/|]/ /g' | cut -d " " -f7
    slashdot · 2010-06-22 16:34:42 4
  • Normalize volume in your mp3 library

    Execute this in the root of your music library and this recurses through the directories and normalizes each folder containing mp3s as a batch. This assumes those folders hold an album each. The command "normalize-audio" may go by "normalize" on some systems.


    -2
    find . -type d -exec sh -c "normalize-audio -b \"{}\"/*.mp3" \;
    Mikelifeguard · 2009-12-08 03:13:13 8

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands

Check These Out

VIM: when Ctrl-D and Ctrl-U only scroll one line, reset to default
Resets the scroll parameter to the default (half the rows in the current window). The scroll parameter can be inadvertently set to 1, e..g., if you type '1 Ctrl-D' or '1 Ctrl-U' in normal mode.

Output Detailed Process Tree for any User
An easy function to get a process tree listing (very detailed) for all the processes of any gived user. This function is also in my http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html

use google's text-to-speech and play in media player

I finally found out how to use notify-send with at or cron
You can write a script that does this : $remind []

Automator Bash script to create Clean zips in MacOS Finder without __MACOSX metadata
Finder compresses to ZIP but always includes extraneous metadata files (__MACOSX and .DS_Store) files and folders that may confuse other programs. One alternative is creating them and then editing the ZIP. This can work standalone or in an automator script accepting multiple selections (files or folders) and creating one zip per argument/selected file without that metada.

list block devices
Shows all block devices in a tree with descruptions of what they are.

Generat a Random MAC address
Generate a random MAC address with capital letters

Produce a pseudo random password with given length in base 64

Merge video files together using mencoder (part of mplayer)
Using mplayer's mencoder, you can merge video files together. '-oac' specifies the audio encoding (here copy, to just copy and not compress) '-ovc' specifies the video encoding (same thing).

checks size of directory & delete it if its to small
only simple example how to combine rclone & jq

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for: