EnglishFrenchSpanish

Ad


OnWorks favicon

lv2file - Online in the Cloud

Run lv2file in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command lv2file that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


lv2file - Apply LV2 effects to audio files

SYNOPSIS


lv2file
-l|--list
-n|--nameports PLUGIN
-i INFILE -o OUTFILE [ OPTIONS ] PLUGIN

DESCRIPTION


lv2file is aprogram which you can use to apply effects to your audio files without much
hassle. Possible use cases are:
* To apply an effect without having to open a GUI or start a project.
* To apply effects to a large number of files, or in an automated manner.
* A deterministic environment to debug a plugin.
* Audio editing in a command-line only environment
lv2file uses the LV2 plugin format (http://lv2plug.in/) for the effects it uses.

OPTIONS


lv2file follows the usual GNU command line syntax, with long options starting with two
dashes (`-'). A summary of options is included below.

-l, --list
List and number all available plugins.

-n --nameports PLUGIN
List all the input and control ports for the specified plugin.

-i FILE
Input the audio from a given FILE. Most common sampled audio formats are
supported.

-o FILE
Output to given FILE.

-c, --connect CHANNEL:PORT
Connect the channel CHANNEL in the input file to the audio port PORT of the plugin.
If you connect multiple channels to the same port, they will be mixed together.
The -c option is often not necessary, as lv2file will try to guess how you would
like to connect the ports.
It is possible to run multiple instances of a plugin using the syntax "-c 5:2.left"
which, for example, would connect the fifth channel of audio to the port labeled
"left" in the second copy of the plugin. You don't need to specify how many
plugins to run, lv2file automatically makes enough according to the connections you
make.

-p, --parameters PORT:VALUE
Pass values to the control ports of the plugin, essentially telling the effect how
to handle the audio. PORT is the name of the control port, and VALUE is the value
to set it to. For example "-p volume:1" sets the effects "volume" control to 1.

You should note that because lv2file uses LV2 plugins, the VALUES will always be
floating point numbers. It is not possible to vary a parameter with time. It is
also not possible to have different control values for multiple plugin instances.
Instead, split up the channels of your audio files, and process them in batches
whose parameters are all the same.

[ -m --mono ]
Mix down all of the channels together and pass them to the plugin. This will only
work if the plugin has only a single audio input. This is to be used instead of
manually specifying connections.

[ -b, --blocksize N ]
The size of the chunks the audio is processed in. This might have implications for
speed of processing. N is measured in frames, not samples. The default is 512.

[ --ignore-clipping ]
By default, lv2file will check every sample for clipping and will warn the user if
any clipping occurs. However, if know that the effect won't produce clipping, or
you don't care if it does, you can use this option to turn off the check for
clipping. This will make lv2file run slightly faster.

Use lv2file online using onworks.net services


Free Servers & Workstations

Download Windows & Linux apps

  • 1
    wxPython
    wxPython
    A set of Python extension modules that
    wrap the cross-platform GUI classes from
    wxWidgets.. Audience: Developers. User
    interface: X Window System (X11), Win32 ...
    Download wxPython
  • 2
    packfilemanager
    packfilemanager
    This is the Total War pack file manager
    project, starting from version 1.7. A
    short introduction into Warscape
    modding: ...
    Download packfilemanager
  • 3
    IPerf2
    IPerf2
    A network traffic tool for measuring
    TCP and UDP performance with metrics
    around both throughput and latency. The
    goals include maintaining an active
    iperf cod...
    Download IPerf2
  • 4
    fre:ac - free audio converter
    fre:ac - free audio converter
    fre:ac is a free audio converter and CD
    ripper for various formats and encoders.
    It features MP3, MP4/M4A, WMA, Ogg
    Vorbis, FLAC, AAC, and Bonk format
    support, ...
    Download fre:ac - free audio converter
  • 5
    Matplotlib
    Matplotlib
    Matplotlib is a comprehensive library
    for creating static, animated, and
    interactive visualizations in Python.
    Matplotlib makes easy things easy and
    hard thing...
    Download Matplotlib
  • 6
    BotMan
    BotMan
    Write your chatbot logic once and
    connect it to one of the available
    messaging services, including Amazon
    Alexa, Facebook Messenger, Slack,
    Telegram or even yo...
    Download BotMan
  • More »

Linux commands

Ad