Hi all, (I hope this is the right list, please note if this should be posted to [email protected] instead.)
We are building a free automatic audio post production web service called *Auphonic*, which I think you might be interested in: Here is our website: http://auphonic.com And a two-minute video: https://www.youtube.com/watch?v=Y6uXP-MGt8I Audio post production of lecture recordings is an area that we are particularly interested in, and where we have acquired experience through an ongoing collaboration with the Graz University of Technology. Our service has also attracted many users from the German-speaking podcasting scene since it has gone public this spring. To us it seems that the workflows supported by Matterhorn and Auphonic complement each other very well. Auphonic could provide algorithms for automated audio post production within the Matterhorn environment, such as noise reduction or equalizing loudness differences between the lecturer (who is usually equipped with a microphone) and the audience (who often isn't). Auphonic is built almost exclusively from Open Source software components (e.g., NumPy, SciPy, Yaafe, ffmpeg, libsndfile, Django), and we aim at contributing our own developments back to the Open Source community. We maintain a very close dialogue with our users and constantly implement new feature requests and ideas that they contribute. We would welcome a collaboration with the Matterhorn project to learn more about our users' needs in this area. If you are interested in establishing a dialogue on how Matterhorn and Auphonic could complement each other, I'd be more than happy to answer any questions that you might have. You also might want to check out our API: https://auphonic.com/api-docs/ Kind regards, Florian P.S.: Here is a short list of features that we support: - Automatic audio classification (music and speech detection, noise profiling, etc.) by server-based machine-learning algorithms - Adaptive leveling to equalize volumes for different regions: https://auphonic.com/blog/2012/03/27/auphonic-audio-post-production-now-open-public-users/#algorithms - Loudness normalization according to new, consistent standards: https://auphonic.com/blog/2012/08/02/loudness-measurement-and-normalization-ebu-r128-calm-act/ - Automatic filtering, compression, and limiting where necessary - Automatic noise reduction, also for changing noise profiles: https://auphonic.com/blog/2012/05/11/experimental-noise-reduction-and-algorithm-chooser/ - Encoding to various file formats (MP3, Opus, Vorbis, AAC, FLAC, etc.) - Video support for input and output (all popular formats) - Metadata and chapter marks support for all file formats - Automatic content deployment via (S)FTP, Soundcloud, YouTube, Dropbox _______________________________________________ Community mailing list [email protected] http://lists.opencastproject.org/mailman/listinfo/community To unsubscribe please email [email protected] _______________________________________________
