Thanks for all the thoughts guys - i'm going to go back through the thread and do some further research on all the suggestions :)
Best Chris On 22 February 2016 at 08:52, Dave Malham <dave.mal...@york.ac.uk> wrote: > Hi, > More thoughts - if you are only concerned with all the players starting > at the same point and can tolerate a small amount of error at the end > points (would have to be checked but should be of the order of no more than > a second or two at the end of half an hour), then I would go down the > smartphone route. Avoids a lot of problems with rf signals. Again, the guys > at Hannah Bruce and Company have done something like it - see > http://www.hannahbruce.org/tlott-app.html Note that I am connected with > them so am not totally unbiased - tho' I did not do any of the work on that > project. > > Dave > > > On 21 February 2016 at 13:59, Dave Malham <dave.mal...@york.ac.uk> wrote: > > > Thinking a bit more about this, the Raspberry Pi solution may not, in > this > > case, be the right one because of power consumption/battery life > > considerations, though new "Zero" version may be better in this respect > - I > > can't find data on this yet, unfortunately. > > > > > > The FM solution with distributed antennas should also work though > > licensing would need checking against local regs. > > > > Dave > > > > > > On 21 February 2016 at 09:37, Dave Malham <dave.mal...@york.ac.uk> > wrote: > > > >> Yep, I'm definitely inclined to think that wireless is not the way to go > >> because of the walls. I'm sure you could work something up with a > Rasberry > >> Pi as a player with an rf trigger signal to start playing - or even a > >> modified mp3 player. If they were all identical (mp3 or Pi player) the > xtal > >> clocks should easily keep playback within less than a second at the end > of > >> 30 minutes, something that might be problematic with playback off mobile > >> phones which is another alternative. Note that we've done something > similar > >> at Hoxton Hall using BLE beacons to lock playback to place rather than > time > >> (http://www.hannahbruce.org/small-choices.html) > >> > >> Dave > >> > >> On 21 February 2016 at 09:23, Augustine Leudar < > augustineleu...@gmail.com > >> > wrote: > >> > >>> thinking about it you'll be lucky to get through thick medieval prison > >>> walls with anything without expensive booster units etc. Your best be > >>> might > >>> be a bit of fun - make it a bit theatrical and at the begining get > >>> everyone > >>> to press "play" on their mp3 player at exactly the same time - not the > >>> most > >>> elegant solution - but possibly the best ! Otherwise try the > Seinheizers > >>> or > >>> get the licence for a local fm frequency and hire a transmitter .... > >>> > >>> On 21 February 2016 at 09:11, Augustine Leudar < > >>> augustineleu...@gmail.com> > >>> wrote: > >>> > >>> > Seinheizer in ear monitor units are about the best. Youd need to test > >>> one > >>> > pair first though with walls etc > >>> > > >>> > > >>> > On 21 February 2016 at 07:32, Bo-Erik Sandholm <bosses...@gmail.com> > >>> > wrote: > >>> > > >>> >> Maybe a FM receiver on the earphones and one or more low power FM > >>> >> transmitters? Or maybe > >>> >> Just search for FM transmitter with google. > >>> >> You could use several on same frequency maybe, or just connect > several > >>> >> external antennas antennas to the device. > >>> >> > >>> >> Solution depends on your prison :-) > >>> >> > >>> >> BR Bo-Erik > >>> >> On 21 Feb 2016 03:32, "Chris Timpson" <christimp...@gmail.com> > wrote: > >>> >> > >>> >> > Hi all > >>> >> > > >>> >> > Wondering if anyone has suggestions for a wireless headphone > >>> solution? > >>> >> I'm > >>> >> > working on a live event that will be a 30mins binaural sound > >>> experience > >>> >> in > >>> >> > a medieval prison for 24 audience members at a time. We need the > >>> audio > >>> >> to > >>> >> > begin simultaneously for all audience members and they will be > >>> walking > >>> >> > around between 3 locations. The distances aren't huge but quite a > >>> few > >>> >> walls > >>> >> > etc. > >>> >> > > >>> >> > I've been looking at silent disco type headphones but have > concerns > >>> >> about > >>> >> > the quality and also that the signal apparently is converted to > mono > >>> >> then > >>> >> > back to stereo during RF transmission. Anyone tested these? > >>> >> > > >>> >> > It could be that we use wired headphones with some kind of small > >>> >> playback > >>> >> > device that can somehow be remotely triggered to play. There will > >>> just > >>> >> be a > >>> >> > single audio file that plays from start to finish. Wondering if > >>> anyone > >>> >> has > >>> >> > tried to build something similar, or perhaps theres an existing > >>> solution > >>> >> > i've completely overlooked !? > >>> >> > > >>> >> > Many thanks, > >>> >> > Chris > >>> >> > > >>> >> > > >>> >> > Chris Timpson > >>> >> > *Director* > >>> >> > EarFilms > >>> >> > T: +44 (0)7888 695770 > >>> >> > E: ch...@earfilms.com > >>> >> > > >>> >> > www.earfilms.com > >>> >> > -------------- next part -------------- > >>> >> > An HTML attachment was scrubbed... > >>> >> > URL: < > >>> >> > > >>> >> > >>> > https://mail.music.vt.edu/mailman/private/sursound/attachments/20160220/4b8ebefc/attachment.html > >>> >> > > > >>> >> > _______________________________________________ > >>> >> > Sursound mailing list > >>> >> > Sursound@music.vt.edu > >>> >> > https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe > >>> here, > >>> >> > edit account or options, view archives and so on. > >>> >> > > >>> >> -------------- next part -------------- > >>> >> An HTML attachment was scrubbed... > >>> >> URL: < > >>> >> > >>> > https://mail.music.vt.edu/mailman/private/sursound/attachments/20160221/1265fb9e/attachment.html > >>> >> > > >>> >> _______________________________________________ > >>> >> Sursound mailing list > >>> >> Sursound@music.vt.edu > >>> >> https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe > >>> here, > >>> >> edit account or options, view archives and so on. > >>> >> > >>> > > >>> > > >>> > > >>> > -- > >>> > www.augustineleudar.com > >>> > > >>> > >>> > >>> > >>> -- > >>> www.augustineleudar.com > >>> -------------- next part -------------- > >>> An HTML attachment was scrubbed... > >>> URL: < > >>> > https://mail.music.vt.edu/mailman/private/sursound/attachments/20160221/764e1c08/attachment.html > >>> > > >>> _______________________________________________ > >>> Sursound mailing list > >>> Sursound@music.vt.edu > >>> https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe > here, > >>> edit account or options, view archives and so on. > >>> > >> > >> > >> > >> -- > >> > >> As of 1st October 2012, I have retired from the University. > >> > >> These are my own views and may or may not be shared by the University > >> > >> Dave Malham > >> Honorary Fellow, Department of Music > >> The University of York > >> York YO10 5DD > >> UK > >> > >> 'Ambisonics - Component Imaging for Audio' > >> > > > > > > > > -- > > > > As of 1st October 2012, I have retired from the University. > > > > These are my own views and may or may not be shared by the University > > > > Dave Malham > > Honorary Fellow, Department of Music > > The University of York > > York YO10 5DD > > UK > > > > 'Ambisonics - Component Imaging for Audio' > > > > > > -- > > As of 1st October 2012, I have retired from the University. > > These are my own views and may or may not be shared by the University > > Dave Malham > Honorary Fellow, Department of Music > The University of York > York YO10 5DD > UK > > 'Ambisonics - Component Imaging for Audio' > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > https://mail.music.vt.edu/mailman/private/sursound/attachments/20160222/774a162e/attachment.html > > > _______________________________________________ > Sursound mailing list > Sursound@music.vt.edu > https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, > edit account or options, view archives and so on. > -------------- next part -------------- An HTML attachment was scrubbed... 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