Linux-audio-user October 2016

linux-audio-user@lists.linuxaudio.org

56 participants
50 discussions

[LAU] A simple place where to share audio

by jonetsu

Just found out about clyp.it, a straightforward no frills place to put audio clips. Don't even need to create an account. I tried it with a short improvisation: https://clyp.it/oh3kl3rs Cheers.

9 years, 3 months

[LAU] DrumGizmo v0.9.11 released

by Bent Bisballe Nyeng

DrumGizmo version 0.9.11 now available! Get it at http://www.drumgizmo.org/ DrumGizmo is an open source, multichannel, multilayered, cross-platform drum plugin and stand-alone application. It enables you to compose drums in midi and mix them with a multichannel approach. It is comparable to that of mixing a real drumkit that has been recorded with a multimic setup. This is mostly a bugfix release, but also introduces the use of the Ardour inline feature in the LV2 version of the plugin. Go load it up, you'll see a loading bar in the mixer panel. A unicode bug has been fixed and we also fixed a problem that occurred when using more than one instance of DG in your DAW. Plus a tonne of other stuff. Check the roadmap for the full details. Important note to package maintainers: We now copy vst source files into the build tree while building the vst plugin. This mean that should you wish to make a tar-ball available with the build directory after the build has finished this must either be stripped of said files or not be made public.

9 years, 3 months

[LAU] Mixbus 32C (based on Ardour) and Reaper shootout

by jonetsu

There is a shootout going on with results next week: https://www.youtube.com/watch?v=ZhDVSaoZhwQ Harrison Mixbus 32C is based on Ardour and incorporates at the mixing stage the 32C channel strip that was used to make famous recordings by Michael Jackson, Supertramp, Paul Simon, Zappa, etc, etc... Harrison also contributes support and code to the Ardour project.

9 years, 3 months

[LAU] Real Time (this is the name of a song, actually :p)

by Yassin Philip

Hi listers, new demo. A full working day in the studio non-stop, not even a lunch break. Here's hoping I'll still enjoy it enough tomorrow to, huh, polish it. Critics welcome ; have a good whatever, it's 22:36 here :) https://soundcloud.com/yassinphilip/real-time yPhil -- Yassin "xaccrocheur" Philip http://manyrecords.com / http://yassinphilip.bitbucket.org

9 years, 3 months

[LAU] Ardour custom plugins system exposition

by Yassin Philip

Hi, quick question ; Are Ardour "custom" plugins (such as the a-Fluid Synth <http://libremusicproduction.com/tutorials/using-avl-drumkits-fluid-synth-ar…>) available outside of Ardour? Phil -- Yassin "xaccrocheur" Philip http://manyrecords.com / http://yassinphilip.bitbucket.org

9 years, 3 months

[LAU] [OT] Trying to track down a microphone

by Jonathan Gazeley

Not related to Linux, but I know there are a lot of people here with excellent knowledge. I'm trying to track down this end-address vocal microphone that's being used here in 1977/78 by Jon Anderson from Yes. Anyone recognise it? https://youtu.be/kPm0iHPfyG8?t=239 Thanks, Jonathan

9 years, 3 months

[LAU] Generate "automagic" music videos with ffmpeg & friends

by Yassin Philip

Hi Listers! Here is a little tooly that I made that may be be of any use to you guys ; Today, if you want to publish a song, pretty soon they're going to ask your for "the video". But sometimes you don't have the time / money to do it. Heck, it's a job. The "Lost Week" video <https://www.youtube.com/watch?v=O27yC-qLlMM> took me like a (big. Huge) week to put together, not counting shooting time. BTW it was edited in KDEnlive, but since No Sister <https://www.youtube.com/watch?v=7EH9jSnYAGI> (and my Why, Phil show <https://www.youtube.com/watch?v=2zZO7-wo2_o> and all) I use Blender for that kind of things now. Back on topic : You don't have time to put together a proper video for your shiny new because you have a life and recording the song already took the best of it lately. Here is a script <https://github.com/xaccrocheur/kituu/blob/master/scripts/px-video-maker.sh> to quickly generate a cool-looking music video <https://www.youtube.com/watch?v=t-u18CbdjBE>, given the sound file, the cover artwork image and an optional ending bit : #!/usr/bin/env bash FILE_PATH="$1" FFMPEG="ffmpeg" ARTIST="$2" ALBUM="$3" COVER_FILE_PATH="$4" EFFECT="$5" if [ "$#" -ne 5 ]; then echo "Usage: $0 [audio file path] 'artist name' 'album name' [artwork image file path] [point|line|p2p|cline]" exit fi convert -resize 1280x720 "${COVER_FILE_PATH}" -background none -gravity center -extent 1280x720 "${COVER_FILE_PATH}.jpg" $FFMPEG -y -i "${FILE_PATH}" -loop 1 -i "${COVER_FILE_PATH}.jpg" -filter_complex "[0:a] showwaves=s=1280x310:mode=${EFFECT}:r=25,colorkey=0x000000:0.1:0.5[wave];[1:v][wave] overlay=y=H-h:eval=init[canvas];[canvas]drawtext=fontfile='Jura-Book.ttf':fontsize=60:text='${ARTIST}':x=30:y=(h-70-text_h*2.5):fontcolor=white:shadowy=2:shadowx=2:shadowcolor=black,drawtext=fontfile='Jura-Book.ttf':fontsize=72:text='${ALBUM}':x=20:y=(h-70-text_h):fontcolor=ff6600:shadowy=2:shadowx=2:shadowcolor=black" -shortest -codec:v libx264 -crf 18 -preset fast -codec:a aac -strict -2 -b:a 192k "${FILE_PATH}-composite.mp4" if [[ -e "end.mp4" ]]; then $FFMPEG -y -i "${FILE_PATH}-composite.mp4" -i "end.mp4" -filter_complex "[0:0] [0:1] [1:0] [1:1] concat=n=2:v=1:a=1 [v] [a]" -map "[v]" -map "[a]" "${ARTIST}-${ALBUM}.mp4" rm -rf "${FILE_PATH}-composite.mp4" else mv "${FILE_PATH}-composite.mp4" "${ARTIST}-${ALBUM}.mp4" fi rm -rf "${COVER_FILE_PATH}.jpg" echo -e " ################################################ DONE : ${ARTIST}-${ALBUM}.mp4" This will * Take the (PNG) cover, and center it inside a 1280x720 (AKA 720p) pixels video ; * Generate a "wave" of the (WAV) sound file ; * Print "Artist" in Orange, And then "Title" in White, below, slightly bigger and offset to the left ; * Merge the 3 together ; * If there exists a file named "end.mp4" in the directory, append it to the final video ; * Clean up everything, and produce a file named "Artist-Title.mp4" in 720p. Notes: * This script depends on the ffmpeg and imagemagick packages * The last argument is the style of the dancing waveform, take a short audio file to experiment with all 4 of them * The "end.mp4" file is optional, it's there if you want an ending credit / legal / whatever bit, or a nice fade out, anything. It's scaled to fit. * If there is a "Jura-Book.ttf" font file in the directory from which the script is invoked, it will be used, otherwise your default serif font will be. With it, you can make that kind of music video <https://www.youtube.com/watch?v=t-u18CbdjBE> ; hope it's useful, cheers everybody, keep on rocking it! yPhil -- Yassin "xaccrocheur" Philip http://manyrecords.com / http://yassinphilip.bitbucket.org

9 years, 3 months

[LAU] Feedback Cancellation Plugin

by Johannes Kroll

Hi, I'm looking for a solution for adaptive feedback cancellation. The type of feedback that occurs between a microphone and speaker, not echo cancellation. Preferrably in the form of a plugin (LADSPA, LV2, DSSI, ...) or even as a standalone JACK app. This must be a common problem, but I haven't found a solution. Thanks, J.

9 years, 3 months

Re: [LAU] Feedback Cancellation Plugin

by Johannes Kroll

On Sun, 23 Oct 2016 09:37:11 +1100 Roger <gurusonic(a)gmail.com> wrote: > Is this for removing feedback from an existing recording, or live? For live. I have several piezo pickups attached to different objects. The objects pick up the sound and start to vibrate, creating the feedback. > For an existing recording you could try Audacity's Spectral Editing. > For live, you should eq the PA and monitors before the performance to > minimize the problem areas, but trying to keep as close to flat response > as possible. It's simple but takes a lot to master. For monitors just > push the level until it feeds back and notch out in the equalizer. Then > cup the mic a little and notch any further feedback. A good RTA may > help here although I've heard people use them to tune FOH and the mix > ended up sounding truly awful. > - Best - good third octave equaliser and a good pair of ears > - Less good but possibly helpful - one of those feedback suppressor units A "Feedback Suppressor Unit" in software is exactly what I'm looking for, yes. I'm aware it would change the sound, I could live with that.

9 years, 3 months

[LAU] The future of audio plugins ?

by jonetsu

Hello, Plugins that network themselves together, sharing audio analysis, sharing data, taking decisions together on how to apply themselves as a group to an audio track, to stems, to a whole session. Is there any standard protocol currently in the works that would enable plugins of various companies, of various projects, to be able to exchange data ? Cheers.

9 years, 3 months

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Linux-audio-user October 2016