I cannot answer your questions, but yes, there is a crying need for something like this. I would think many more people would try and eight loudspeaker system if they did not have to trail eight sets of wires all over the room. umashankar
i have published my poems. read (or buy) at http://stores.lulu.com/umashankar > Date: Fri, 25 Jan 2013 20:32:57 +0100 > From: sventheb...@gmail.com > To: sursound@music.vt.edu > Subject: [Sursound] Broadcasting b-format over 802.11g to Ambisonic speaker > system > > Dear Sursounders, > > soon I will start working on my Master's Thesis in Embedded Systems > Engineering at FH Campus Vienna. > > I'm interested in Ambisonics decoding and I have the idea to broadcast > b-format over 802.11g to the speakers. A programmed microcontroller > mounted right behind each speaker will receive the b-format stream > and, by knowing the position of its speaker and the geometric > formation of the array, the µC will solve the ambisonics decoding > matrix and will send the calculated audio to the active speaker. > > Do you think, there is some interest in such a technique? > Does somebody know other (or same) technical ideas or implementations? > I've heard that Dolby works on streaming Dolby Surround over WLAN, but > that's technically a different approach. > > This is not about auto-configure Ambisonic speaker arrays. My focus is > in the realization of a wifi streaming application for b-format > including a receiver which knows all needed information about the > Ambisonic playback system to decode an appropriate sound signal. > > The main question will be: How can I guarantee that all receiving µCs > work synchronous, or with so little jitter, that the sound image for > the listener doesn't collapse? > Further problems are: > By using 802.11g, is there enough bandwidth for streaming uncompressed > b-format? (minimum: 1st order, 48kHz,16bit ~3 Mbit/s net, without any > overhead) > How much DSP power is needed for decoding? Do I need an embedded > system with Analog Devices processor or is i.e. a CortexM4 sufficient? > Do I really need DSP power or will be a RasPi adequate in filtering > rE/rV and audio quality? > > I think it's a lot of work to bring this idea into reality. In my > thesis I will focus on realtime constraints and if I get that done and > working, I will implement some decoding algorithms for different > speaker layouts. > > I would be happy for some replies, > thanks in advance, > Sven Thebert > _______________________________________________ > Sursound mailing list > Sursound@music.vt.edu > https://mail.music.vt.edu/mailman/listinfo/sursound -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20130126/104b9fb3/attachment.html> _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
