Linux-audio-user

linux-audio-user@lists.linuxaudio.org

3 participants
20662 discussions

ffmpeg video generation: quality options

by Jeanette C.

Hey hey, I've found the following command to generate a video from single frame images ffmpeg -r 25 -start_number 1 -i image%03d.jpg -c:v libx264 -r 25 -pix_fmt yuv420p out.mp4 My question is: the resultant videos seem quite small. Seeing that I have no knowledge of all the video quality parameters, could someone suggest better options? The input files are 1280x720 JPGs with possibly 16bits for color (standard POV-Ray output). Final destination is youtube. Any suggestions are very welcome. Best wishes and thanks, Jeanette -------- * website: http://juliencoder.de - for summer is a state of sound * SoundCloud: https://soundcloud.com/jeanette_c All you people look at me like I'm a little girl. Well did you ever think it be okay for me to step into this world. <3 (Britney Spears)

8 years, 3 months

[Music] Pulse Of A Wistful Space

by Dave Phillips

Greetings, A demo of Sean Bolton's excellent WhySynth. https://soundcloud.com/davephillips69/pulse-of-a-wistful-space Downloads enabled, comments welcome Best, dp

8 years, 3 months

[Music] Oneiric-1

by jonetsu

Oneiric : of or relating to dreams. 'Oneiric 1' is like a story out of a dream where logic is distorted although some unconscious thread weaves them in and out as if responding to some kind of continuity. This is not an abstract piece, though. It mimicks quite well what is found in reality, drums, basses, leads, but seems to tell a story whose plot will never be known. This is not a love song. It's not a soothing song. Although it's colorful in its own way. https://soundcloud.com/nominal6/oneiric-1 Cheers.

8 years, 4 months

A guide for beginners

by Leandro Noferini

Ciao a tutti, I am an old fashion (also for age ;-)) ) musician but also a old linux enthusiast so I can read quite anything about musical theory and I can install, configure and use linux programs. Now I would like to join these two worlds and begin to understand and use linux to make music but I need something to begin: is there a guide or something similar for a beginner? -- leandro 1A0B 125B 2E4D 2DAE 4E26 4551 88FB BBCC 7A29 640B https://bbs.cybervalley.org/ChiaveLeandro/gpg.html http://6xukrlqedfabdjrb.onion La caratteritica principale dei miracoli è che non accadono

8 years, 4 months

[LAD] [LAA] Guitarix 0.35.5 released

by Hermann Meyer

Guitarix release 0.35.5 Guitarix is a tube amplifier simulation for jack (Linux), with an additional mono and a stereo effect rack. Guitarix includes a large list of LV2 and LADSPA plugins, and support LADSPA / LV2 plugs as well in it's racks. The guitarix engine is designed for LIVE usage, and feature ultra fast, glitch and click free preset switching and is full Midi and remote controllable (the Web UI is not included in the distributed tar ball). This release fix a issue within the new online preset downloader. If you already use V0.35.4, a upgrade is strongly recommended. Refer to our project page for more information: http://guitarix.org Download Site: http://sourceforge.net/projects/guitarix/ Forum: http://guitarix.sourceforge.net/forum/ Consider visiting our forum or leaving a message on guitarix-developer(a)lists.sourceforge.net regards hermann

8 years, 4 months

Re: [LAU] Render and animate OctaMed songs in batch processing

by Kjetil Matheussen

Henning Thielemann: > > > Decades ago I arranged more than 200 songs using MED/OctaMED/OctaMED > Studio on various Amigas. In the meantime I converted them all to MMD1 and > MMD2 format. I wanted to render them to audio files (e.g. WAV) for use on > CDs or MP3 players. I could render the MMD1 files without problems using > UADE, however UADE refuses to render MMD2 (with mixer mode). XMP seems to > play some MMD2 modules, but not all of them (maybe has to do with mixer > mode). > Radium seems to accept only MMD2 and not MMD1, but when playing > there is only silence (whereas demo songs make noise, so no Jack problem). > That makes sense. Radium only import MIDI instruments from MMD2 and MMD3 songs. I made Radium to replace Octamed, so I needed to import my MMD2/MMD3 songs, which only contained MIDI. > Next step: I want to create music videos from the playing modules for > upload, say, to YouTube. I am certainly not patient enough to perform all > songs in OctaMED in an Amiga emulator (FS-UAE) and record the performances > using a screen grabber (like ffmpeg -f x11grab). I guess you could create a script and let it run over night. Something like this: 1. Modify S/startup-sequence to load and play the next module. 2. Start a program that monitors the audio output of uae. When uae stops producing sound, the script shuts down uae. 3. Goto 1. > If playing in Radium > would work, I could check whether it is possible to control Radium and > screen grabbing from a shell script. I've used obsproject.com to create the youtube radium videos. It performed far better than everything else I tried. Almost no problems recording glitch-free 1900x1080@60hz on my ~10 year old computer. It's probably possible to script it somehow too.

8 years, 4 months

Re: [LAU] [OT] Creating images/videos on the commandline

by David Jones

On Jul 11, 2017 13:25, Dominique Michel <dominique.c.michel(a)gmail.com> wrote: > > Le Tue, 11 Jul 2017 16:56:02 +0200 (CEST), > "Jeanette C." <julien(a)mail.upb.de> a écrit : > > > Hey hey, > > this doesn't belong here, but probably nowhere else really. I'd like > > to create systematic images/a short video on the commandline. By > > systematic I mean, not pictures, but more like colour effects. > > Evolving shapes, colour changes. Is there a tool to achieve this on > > the Linux commandline? > > Hi, > > For images, POV-Ray maybe? > > Cheers, > Dominique I've always wondered if you could record screensaver images. Or the images generated by music player visualization plugins. Not sure if either could be done from command line, though. David W. Jones gnome(a)hawaii.rr.com authenticity, honesty, community http://dancingtreefrog.com

8 years, 4 months

[OT] Creating images/videos on the commandline

by Jeanette C.

Hey hey, this doesn't belong here, but probably nowhere else really. I'd like to create systematic images/a short video on the commandline. By systematic I mean, not pictures, but more like colour effects. Evolving shapes, colour changes. Is there a tool to achieve this on the Linux commandline? Best wishes, Jeanette -------- * website: http://juliencoder.de - for summer is a state of sound * SoundCloud: https://soundcloud.com/jeanette_c We still move to a rhythm just like this We still dream of sharing our first kiss <3 (Britney Spears)

8 years, 4 months

Larasynth - learns to turn your synth knobs as you play

by Nathan Sommer

Hi all, I have created an open source MIDI application called Larasynth. You can train it with recorded examples of how you would like it to behave, and then it will adjust your synth's continuous controller parameters live as you play. More information here: https://larasynth.readthedocs.io/ I plan to actively maintain this project so I would love to hear any feedback/issues you might have! Best, Nathan

8 years, 4 months

Re: [LAU] 96 khz wav file recording

by Andreas Werner

Install a GUI [GUIDE] Raspbian Lite with PIXEL/LXDE/XFCE/MATE/i3 GUI https://www.raspberrypi.org/forums/viewtopic.php?f=66&t=133691 Then you can use more/other tools like vlc Rgds AW 2017-07-10 14:19 GMT+02:00 David Kamp <davidkamp82(a)gmail.com>: > I just started to build a sound recording device using a raspberry pi 3 with rasbian lite and a mixpre 6 USB audio interface. > > A first test with arecord seemed to work. > Are there any other tools for rasbian (sox, ffmpeg or others) that are "better" (for example in regard to reliability)? > > Thanks for any tips! > David > > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user(a)lists.linuxaudio.org > http://lists.linuxaudio.org/listinfo/linux-audio-user

8 years, 4 months

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

Linux-audio-user