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Medias (91)
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DJ Z-trip - Victory Lap: The Obama Mix Pt. 2
15 September 2011
Updated: April 2013
Language: English
Type: Audio
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Matmos - Action at a Distance
15 September 2011, by
Updated: September 2011
Language: English
Type: Audio
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DJ Dolores - Oslodum 2004 (includes (cc) sample of “Oslodum” by Gilberto Gil)
15 September 2011, by
Updated: September 2011
Language: English
Type: Audio
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Danger Mouse & Jemini - What U Sittin’ On? (starring Cee Lo and Tha Alkaholiks)
15 September 2011, by
Updated: September 2011
Language: English
Type: Audio
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Cornelius - Wataridori 2
15 September 2011, by
Updated: September 2011
Language: English
Type: Audio
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The Rapture - Sister Saviour (Blackstrobe Remix)
15 September 2011, by
Updated: September 2011
Language: English
Type: Audio
Other articles (60)
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Amélioration de la version de base
13 September 2013Jolie sélection multiple
Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...) -
Menus personnalisés
14 November 2010, byMediaSPIP utilise le plugin Menus pour gérer plusieurs menus configurables pour la navigation.
Cela permet de laisser aux administrateurs de canaux la possibilité de configurer finement ces menus.
Menus créés à l’initialisation du site
Par défaut trois menus sont créés automatiquement à l’initialisation du site : Le menu principal; Identifiant : barrenav; Ce menu s’insère en général en haut de la page après le bloc d’entête, son identifiant le rend compatible avec les squelettes basés sur Zpip; Éléments (...) -
ANNEXE : Les plugins utilisés spécifiquement pour la ferme
5 March 2010, byLe site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3); le plugin champs extras v2 nécessité par (...)
On other websites (5303)
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How to apply an ffmpeg audio effect only on a part of a video?
25 March 2021, by Michael Ben Haym
My question is how can I apply an ffmpeg audio effect only on a certain part of a video and not on 100% of the video.

I have for example the following command:

ffmpeg -i input.mp4 -filter_complex "afftfilt=real='hypot(re,im)*sin(0)':imag='hypot(re,im)*cos(0)':win_size=512:overlap=0.75" output.mp4



this command works perfectly for me but if for example I have a video of 30 seconds and want the effect to be applied only on seconds 20-25, how do I do it?

Thanks!

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Recognize start of piano music in an MP3 file which starts with a spoken introduction, and remove spoken part, using Python
22 August 2020, by user3716846I have a number of .mp3 files which all start with a short voice introduction followed by piano music. I would like to remove the voice part and just be left with the piano part, preferably using a Python script. The voice part is of variable length, ie I cannot use ffmpeg to remove a fixed number of seconds from the start of each file.
Is there a way of detecting the start of the piano part and then know how many seconds to remove using ffmpeg or even using Python itself?.
Thank you


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Problem with streamcopy of a part of av1 video in ffmpeg
22 April 2020, by vorromI'm trying to cut part of a video from av1-mp4 file with FFMmpeg command and I want do it withuout recompressing. But there is no result.
I try method with -ss -t or -to parameters with different combinations.



ffmpeg -ss 10 -i D:\in_av1.mp4 -t 5 -vcodec copy -acodec copy D:\out_av1.mp4




-ss from input file get me 15 seconds video from beginning instead 5 seconds from 10



ffmpeg -i D:\in_av1.mp4 -ss 10 -t 5 -vcodec copy -acodec copy D:\out_av1.mp4




this way get 5 seconds audio file without video data.
It seems to me that coder can not find start point for operation.



I make an av1.mp4 example file, you can find it here. https://pixeldrain.com/u/c8fbQgYK I understand that AV1 is new format and have experimental flag while converting with it. But nevertheless FFmpeg carrectly change result when I change -t parameter. If I use



ffmpeg -ss 10 -i D:\in_av1.mp4 -t 7 -vcodec copy -acodec copy D:\out_av1.mp4




it give me 17 seconds. So -t part working. Whats why I hope there is way to solve my problem.



I use ffmpeg-20200417-889ad93-win64-static for Windows.