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  • Ajouter des informations spécifiques aux utilisateurs et autres modifications de comportement liées aux auteurs

    12 avril 2011, par

    La manière la plus simple d’ajouter des informations aux auteurs est d’installer le plugin Inscription3. Il permet également de modifier certains comportements liés aux utilisateurs (référez-vous à sa documentation pour plus d’informations).
    Il est également possible d’ajouter des champs aux auteurs en installant les plugins champs extras 2 et Interface pour champs extras.

  • Problèmes fréquents

    10 mars 2010, par

    PHP et safe_mode activé
    Une des principales sources de problèmes relève de la configuration de PHP et notamment de l’activation du safe_mode
    La solution consiterait à soit désactiver le safe_mode soit placer le script dans un répertoire accessible par apache pour le site

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 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 (...)

Sur d’autres sites (12619)

  • Popcorn Hour revisited

    26 février 2015, par Mans — Hardware

    In a previous post, I recounted my adventures with the Popcorn Hour C-200 media player. Having not given the device much thought since then, I recently decided to dust it off and see what it was really made of. This is what I found. Components The system is based on … Continue reading →

  • Popcorn Hour revisited

    26 février 2015, par Mans — Hardware

    In a previous post, I recounted my adventures with the Popcorn Hour C-200 media player. Having not given the device much thought since then, I recently decided to dust it off and see what it was really made of. This is what I found. Components The system is based on … Continue reading →

  • How to synchronise two audio files using a marker

    30 juillet 2014, par Dimitri Jorge

    I’m working on a project on which we use WebRTC and the RecordRTC library to record audio files.

    I would like to be able to process the audio files server-side to ensure a good synchronisation.

    To do so, I’m thinking about marking the start of each record with an inaudible sound marker in order to analyse new records and then manipulate the starting offset with ffmpeg (which I already use to compress the raw files created by RecordRTC).

    The thing is I’ve never done any advanced audio processing before, I’m looking around and cannot find what would be the proper way to do this.

    Is there another, better, way to handle synchronisation ? And if not, I would be grateful if I could get some tips on the marker technique.
    Thank you.

    Edit :
    I forgot to mention for those who don’t know how RecordRTC works that the record is done client-side in Javascript. The synchronisation issue comes from the fact that javascript is not good at synchronising calls.

    The process is done as follow :

    1) A user records himself

    [User 1] -> Records on his browser an audio file
    
   |
    
   | Saves raw audio file (call it audio_1.ogg)
    
   |
    
[Server]

    2) Another user wants to join user_1’s project

    [User 2]  <--- Fetch audio_1.ogg (in an audio html tag) --- [Server]
    
   |
    
   | Press record
    
   |
    
[Webapp] -> Plays audio_1.ogg and starts recording audio_2.ogg
    
   |
    
   | Saves audio_2.ogg when record is over
    
   |
    
[Server]

    The synchronisation issue comes from the fact that there are no way in Javascript to ensure that both the functions handling that starts record and the one responsible for beginning playing the existing audio file happen on the same time.

    I end up with 50/100 ms of gap depending on how many audio files are already on the project (since it’s not limited to two).

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