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
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> > --
> > www.augustineleudar.com
> >
>
>
>
> --
> www.augustineleudar.com
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--
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'
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