Recherche avancée

Médias (2)

Mot : - Tags -/media

Autres articles (99)

  • 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 (...)

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

  • ANNEXE : Les plugins utilisés spécifiquement pour la ferme

    5 mars 2010, par

    Le 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 inscription3 (...)

Sur d’autres sites (7302)

  • How to read realtime microphone audio volume in python and ffmpeg or similar

    1er septembre 2023, par Ryan Martin

    I'm trying to read, in near-realtime, the volume coming from the audio of a USB microphone in Python.

    


    I have the pieces, but can't figure out how to put it together.

    


    If I already have a .wav file, I can pretty simply read it using wavefile :

    


    from wavefile import WaveReader

with WaveReader("/Users/rmartin/audio.wav") as r:
    for data in r.read_iter(size=512):
        left_channel = data[0]
        volume = np.linalg.norm(left_channel)
        print(volume)


    


    This works great, but I want to process the audio from the microphone in real-time, not from a file.

    


    So my thought was to use something like ffmpeg to PIPE the real-time output into WaveReader, but my Byte knowledge is somewhat lacking.

    


    import subprocess
import numpy as np

command = ["/usr/local/bin/ffmpeg",
            '-f', 'avfoundation',
            '-i', ':2',
            '-t', '5',
            '-ar', '11025',
            '-ac', '1',
            '-acodec','aac', '-']

pipe = subprocess.Popen(command, stdout=subprocess.PIPE, bufsize=10**8)
stdout_data = pipe.stdout.read()
audio_array = np.fromstring(stdout_data, dtype="int16")

print audio_array


    


    That looks pretty, but it doesn't do much. It fails with a [NULL @ 0x7ff640016600] Unable to find a suitable output format for 'pipe:' error.

    


    I assume this is a fairly simple thing to do given that I only need to check the audio for volume levels.

    


    Anyone know how to accomplish this simply ? FFMPEG isn't a requirement, but it does need to work on OSX & Linux.

    


  • Revision 37620 : Une erreur sur le select

    24 avril 2010, par kent1@… — Log

    Une erreur sur le select

  • Revision 37620 : Une erreur sur le select

    24 avril 2010, par kent1@… — Log

    Une erreur sur le select

Navigation