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Autres articles (45)
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MediaSPIP 0.1 Beta version
25 avril 2011, parMediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
The zip file provided here only contains the sources of MediaSPIP in its standalone version.
To get a working installation, you must manually install all-software dependencies on the server.
If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...) -
MediaSPIP version 0.1 Beta
16 avril 2011, parMediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...) -
Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir
Sur d’autres sites (10987)
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Converting stereo file to mono but preserving peak and RMS loudness
14 juin 2020, par user319249I am converting stereo audio files to mono using ffmpeg.



ffmpeg -i $1 -ac 1 -ab 192k mono_$1




However, after conversion, the RMS and peak loudness levels are not the same.



Tests-iMac:auditions test$ ./rms.sh mono_test.mp3 
 mean_volume: -20.1 dB
 max_volume: -0.2 dB
 Peak level dB: -0.150201
 RMS level dB: -20.138039
 RMS peak dB: -10.650649
 RMS trough dB: -94.923318
 Flat factor: 0.000000
 Peak count: 2.000000
 Bit depth: 32/32
 Number of samples: 5800320
 Number of NaNs: 0.000000
 Number of Infs: 0.000000
 Number of denormals: 0.000000
Tests-iMac:auditions test$ ./rms.sh test.mp3 
 mean_volume: -22.9 dB
 max_volume: -2.9 dB
 Peak level dB: -2.896314
 RMS level dB: -22.883812
 RMS peak dB: -13.397327
 RMS trough dB: -95.943631
 Flat factor: 0.000000
 Peak count: 2.000000
 Bit depth: 32/32
 Number of samples: 5800320
 Number of NaNs: 0.000000
 Number of Infs: 0.000000
 Number of denormals: 0.000000




The first ouput is the mono file which is technically louder than the stereo file, listed second. How can I preserve the peak and RMS values while also converting to mono ? I have no issue scripting in order to obtain the stereo loudness values to pass to the mono conversion process.



Thanks !


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Filter complex with split source and multiple overlays : Can my code be simplified ?
29 juin 2024, par Patrick HennesseyI've created a complex split filter that splits a single 1372 x 1372 input source into multiple uniquely shaped and cropped slices (s1, s2, etc), and overlays them on a padded background plate into a single output. It also applies a 20fps target framerate on the last overlay step.


It works exactly how I want, but I'm wondering if this code is inefficient or redundant in any way :


ffmpeg -i test.mp4 -filter_complex "[0:v]split=5[s1][s2][s3][s4][s5];
[s1]scale=377:377,crop=360:360:2:2,pad=1920:1080:1560:720[bg];
[s2]crop=1372:1068:0:0[s2];[bg][s2]overlay=0:0[bg];
[s3]crop=460:308:0:1064[s3];[bg][s3]overlay=1372:0[bg];
[s4]crop=460:308:456:1064[s4];[bg][s4]overlay=1372:308[bg];
[s5]crop=460:308:912:1064[s5];[bg][s5]overlay=1372:616,fps=20" output.mp4



Is there a more elegant way to achieve the same result ?


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Build : Updating the master version to 1.17.1-pre.
29 juillet 2017, par staabmBuild : Updating the master version to 1.17.1-pre.