Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
Last revision Both sides next revision
wiki:scripts_and_tools [2011/06/30 19:06]
emrum
wiki:scripts_and_tools [2013/06/02 15:45]
127.0.0.1 external edit
Line 19: Line 19:
 \\ \\
  
-==== lscp2rgd - linuxsampler ​to rosegarden instrument ​====+==== midi to hydrogen ​====
  
   * [[/​wiki/​script_midi2hydrogen| convert drums of a midi file to hydrogen format ]]   * [[/​wiki/​script_midi2hydrogen| convert drums of a midi file to hydrogen format ]]
 +
 +\\
 +
 +
 +
 +==== SFZ (sound-bank-definition) to Hydrogen (drumkit xml-file) ====
 +
 +
 +  * [[/​wiki/​user/​emrum/​sfz_to_h2| sfz to hydrogen script ]]
 +
 +
 +\\
 +
 +==== script: create a hydrogen drumkit from wav files ===
 +
 +thanks to Thijs van Severen
 +
 +[[http://​audio-and-linux.blogspot.de/​2012/​04/​hydrogen-drumkit-creator-script.html| ​ Hydrogen drumkit creator script ]] - note: filenames have to follow a rule
 +
 +\\
 +
 +[[http://​www.hydrogen-music.org/​hcms/​node/​5#​sect.pattern_editor.drumkit| Instrument mapping (Hydrogen Manual) ]]
 +
 +\\
 +
 +[[http://​www.mindwaremusic.com/​SoundsetterHelp/​scr/​GMDrumMap.html| GM (general midi) mapping ]]
  
 \\ \\
Line 127: Line 153:
 . .
  
-=== convert sound files with libsndfile ===+==== convert sound files with libsndfile ​====
  
-sndfile-convert+ 
 +=== convert all FLAC files in a directory to OGA format (vorbis-encoded stream in ogg-container) === 
 +\\ 
 +** Note: ** There is a simple and excellent GUI tool available for audio conversion: [[http://​soundconverter.org/​| SoundConverter ]] \\ 
 +It is included in the ubuntu repository. 
 +\\ 
 +\\ 
 +\\ 
 +<code bash> 
 +#​!/​bin/​bash 
 + 
 +## UPDATE: ​sndfile-convert ​-vorbis ​ normalizes the sound to 0 DB ! 
 +## there are no options to control that, or compression rate. 
 +## so rather use "​oggenc"​ instead ! 
 +## there is also a py-script called "​dir2ogg"​ in ubuntu 
 + 
 +# initial code by Emanuel Rumpf 2012-04 
 +# any re-use and modification permitted 
 + 
 +# convert all FLAC files in a directory to OGA format  
 +# (compressed,​ vorbis-encoded stream in ogg-container) 
 +
 +# USAGE: 
 +# first install libsndfile - in ubuntu: 
 +# sudo   ​apt-get install ​  ​libsndfile1 sndfile-programs sndfile-tools 
 +#  
 +# copy this script to the files directory, make it executable 
 +# edit config options below if necessary, run it 
 + 
 +# TODO: allow file-names with spaces 
 + 
 + 
 +# CONFIGURE HERE 
 + 
 +# select file extension:​ 
 +EXT_OLD="​.flac"​ 
 +EXT_NEW="​.oga"​ 
 + 
 +# select directory for new vfiles 
 +OUT_DIR="​./​oggs/"​ 
 + 
 +# add -vorbis parameter to sndfile-convert call 
 +CONVERT_OPT="​-vorbis"​ 
 + 
 + 
 +# CODE START 
 + 
 +mkdir -p "​$OUT_DIR"​ 
 + 
 +# apply to all flac files in current directory 
 +FILES=*${EXT_OLD} 
 + 
 +for f in $FILES 
 +do 
 + 
 +  fn=`basename "​$f"​ $EXT_OLD` 
 +  fn="​${OUT_DIR}${fn}${EXT_NEW}"​ 
 +   
 +  comm="​sndfile-convert $CONVERT_OPT $f $fn " 
 +  echo "​-->​ $comm " 
 +  $comm 
 +  echo ""​ 
 + 
 +done 
 + 
 + 
 + 
 + 
 +</​code>​ 
 +\\ 
 +\\ 
 +<​code>​ 
 +# There is a possilbe alternative,​ with "​find"​ and -exec statement 
 +
 +# warning: this is not verbose ​ and  can take some time ! 
 + 
 + 
 +# for all files in current directory (.)  execute libsndfile-convert 
 +
 +find . -name "​*.flac"​ -exec sndfile-convert -vorbis '​{}'​ '​{}'​.oga \; 
 + 
 +</​code>​
  
 . .
Line 209: Line 316:
 . .
  
-==== Tips ==== 
  
 +==== Extract Audio from Video and recombine ====
 +(help by Robin Gareus @lau-ml)
  
-=== use a proper python shell ===+=== with ffmpeg ​===
  
-(by Torben Hohn, 28. September 2010 01:16 )+<​code>​
  
 +#extract audio
 +ffmpeg -i orig_video.wmv audio_out.wav
 +
 +#replace audio
 +ffmpeg \
 + -i orig_video.wmv \
 + -i new_audio.wav \
 + ​-vcodec copy \
 + -map 0.0 -map 1.0 \
 + ​new_video.wmv
 +
 +</​code>​
 +
 +
 +<​code>​
 +Details: ​ The "​map"​ may be different depending on the .wmv file.
 +run `ffprobe` to see which is the video-track in the .wmv file
 +usually this is "​0.0"​.
 +   ​Stream #0.0: Video:...
 +   ​Stream #0.1: Audio: ..
 +and "​1.0"​ corresponds to the 2nd input file - your new audio.
 +
 +You may want to add "​-acodec wmav2" and "-ar 128k" options for 128kbit/s
 +Windows Media Audio 2 or whatever audio-codec/​quality your want. `ffmpeg
 +-codecs | grep "​EA"​` gives you a list of available codecs for Encoding
 +Audio.
 +
 +</​code>​
 +
 +
 +BTW. Ardour3 with videotimeline patch can do all this for you.
 +import,​extract,​re-encode using ffmpeg.
 +
 +
 +
 +>> Thanks. It is 0:0 and 0:1 and -b:a=192k I found, but I have some sync problems after recombining tho. Any other ideas?
 +
 +My gut feeling is to blame ffmpeg'​s WMV muxer (it may not be able to mux
 +a bit-exact copy of the original video with your new soundtrack).
 +
 +<​code>​
 +
 +Try using '​-sameq'​ instead of '​-vcodec copy' (re-encode the video with
 +same quality rather than a bit-exact copy - this often solves muxing
 +issues but will cause a small loss of either video quality or increased
 +bandwidth).
 +
 +</​code>​
 +
 +and also try a different output format eg. '​new_video.avi'​ or '​..mov'​
 +instead of '​new_video.wmv'​.
 +
 +<​code>​
 +
 +you may need both, this should work:
 + '​ffmpeg -i vid.wmv -i aud.wav -sameq -map 0.0 -map 1.0 output.avi'​
 +
 +</​code>​
 +
 +\\
 +
 +=== with mencoder ===
 +
 +[[http://​savvyadmin.com/​extract-audio-from-video-files-to-wav-using-mplayer/​]]
 +
 +\\
 +
 +=== posssibly other options ===
 +
 +\\
 +  * kdenlive
 +  * ardour3 + video patch
 +
 +\\
 +\\
 +
 +
 +==== JACKdbus - Desktop integration - backend-switching ====
 +  * [[http://​gareus.org/​blog/​jack2dbus| jack2 backend switching ]]
 +  * [[http://​gareus.org/​wiki/​jack2contol|jack2 dbus control ]]
 +
 +\\
 +\\
 +
 +==== save and restore irq process priorities ====
 +\\
 +<code bash>
 +
 +#!/bin/bash
 +#
 +# rtirq_power:​ save and restore irq process priorities
 +#
 +# This script is called when a change in power status happens, when
 +# suspending it saves a list of all irq process priorities, when
 +# resuming it changes the priorities of the proper irq processes
 +# to the saved values
 +#
 +# Copyright (c) 2012 Fernando Lopez-Lezcano
 +#
 +#   This program is free software; you can redistribute it and/or
 +#   ​modify it under the terms of the GNU General Public License
 +#   as published by the Free Software Foundation; either version 2
 +#   of the License, or (at your option) any later version.
 +#
 +#   This program is distributed in the hope that it will be useful,
 +#   but WITHOUT ANY WARRANTY; without even the implied warranty of
 +#   ​MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ​ See the
 +#   GNU General Public License for more details.
 +#
 +#   You should have received a copy of the GNU General Public License along
 +#   with this program; if not, write to the Free Software Foundation, Inc.,
 +#   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 +
 +. "​${PM_FUNCTIONS}"​
 +
 +case $1 in
 +    hibernate|suspend)
 + /bin/ps -eo rtprio=,​comm= --sort -rtprio | /bin/egrep ' irq/​[0-9]*'​ | savestate rtirq
 +        ;;
 +    thaw|resume)
 + restorestate rtirq | while read IRQPRIO IRQCOMM ; do
 +     if [ -n "​${IRQPRIO}"​ -a -n "​${IRQCOMM}"​ ] ; then
 + IRQPID=`/​bin/​ps -e -o pid,comm | grep " ${IRQCOMM}"​ | awk '​{print $1}'`
 + if [ -n "​${IRQPID}"​ ] ; then
 +     PRIO=`/​bin/​ps -p ${IRQPID} -o rtprio=`
 +     if [ ${PRIO} -ne ${IRQPRIO} ] ; then
 + /​usr/​bin/​chrt -f -p ${IRQPRIO} ${IRQPID}
 +     fi
 + fi
 +     fi
 + done
 +        ;;
 +    *) exit $NA
 +        ;;
 +esac
 +
 +
 +</​code>​
 +
 +\\
 +.
 +
 +<​quote>​
 +
 +A first try at using a pm-utils script. This script saves the priority state of all irq* processes and restores them after a resume. It only restores the priority for processes that still exist after the resume, and will do nothing for new processes (ie: you plugin a usb card while the computer is sleeping). That would be taken care by my previously posted udev script which would change priority of newly inserted soundcards. I put 05rtirq it in /​etc/​pm/​sleep.d/​ directory... it seems to be working fine in my laptop.
 +
 +</​quote>​
 +\\
 +\\
 +\\
 +\\
 +
 +
 +
 +\\
 +
 +
 +===== Tips =====
 +
 +\\
 +
 +==== use a proper python shell ====
 +\\
 +(by Torben Hohn, 28. September 2010 01:16 )
 +\\
 ipython is there for quite some time. ipython is there for quite some time.
  
 and i recently discovered bpython and i recently discovered bpython
  
-[[http://​ipython.scipy.org/​moin/​]]+  * [[http://​ipython.scipy.org/​moin/​]]
  
-[[http://​bpython-interpreter.org/​]]+  * [[http://​bpython-interpreter.org/​]]
  
 this is where the fun starts this is where the fun starts
Line 229: Line 502:
  
 doctests also pretty much kick ass. doctests also pretty much kick ass.
 +\\
 [[http://​docs.python.org/​library/​doctest.html]] [[http://​docs.python.org/​library/​doctest.html]]
  
  
 +\\
 +\\
  
 +
 +==== Tip: Pianoteq - software synth - on Linux ====
 +\\
 +(tip by: Edward Diehl, LAD, 2012-09-02)
 +\\
 +I wanted to mention that Pianoteq does provide a linux VST which does
 +work in Ardour and Qtractor. ​ However, the default version provides 5
 +output channels which Ardour does not seem to like (because it expects
 +stereo output). ​ However, if you append "​_2chan"​ to the plugin library
 +name (e.g. Pianoteq.so to Pianoteq_2chan.so) , the plugin will output
 +only 2 channels and work happily in Ardour.
 +\\
 +\\
 +
 +
 +
 +
 +==== Lisalo - Linux Sampler Loader ====
 +(Thanks to Nils Gey)
 +\\
 +\\
 +
 +This is the Release of Lisalo 1.0
 +Grab it here, no installing required:
 +git clone git://​github.com/​nilsgey/​Lisalo.git
 +\\
 +\\
 +
 +Linux Sampler Loader is a command line program (python) that loads entire
 +directories of sample files or takes instructions from a meta .lsl file
 +with relative paths to samples.
 +\\
 +\\
 +
 +This program exists because you can't share linuxsampler lscp files
 +or even move files around on your own disk. Lscp files only work with
 +absolute paths and are too low level anyway.
 +\\
 +\\
 +
 +Now you can quickly and easily load sampled instruments without
 +even starting a GUI. The lsl files are very simple, see example.lsl,​
 +and can be shipped around with your sfz sample package like the
 +Sonatina Symphonic Orchestra (lsl file already included in this release)
 +\\
 +\\
 +
 +Version 1.0 Licensed under GPLv3 by Nils Gey, June 2012
 +\\
 +Only dependencies are Python and Linuxsampler.
 +\\
 +\\
 +https://​github.com/​nilsgey/​Lisalo
 +\\
 +irc.freenode.org # laborejo
 +
 +\\
 +\\
  
  
wiki/scripts_and_tools.txt · Last modified: 2017/12/03 12:22 by nilsge