I'm looking to play a video presentation on a PC, and I'm trying to figure out a way to stream that presentation's audio across 6 Bluetooth headphones. Each headphone would have a USB dongle.
Is there a straightforward way of achieving this?
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I have researched this several months ago and I did not find a solution.
When you say "Each headphone would have a USB dongle." I assume that you mean that each headphone will have its own BlueTooth transmitter. But the problem is getting some way to send the audio presentation out through several USB outputs concurrently. There may be expensive commercial solutions, but that probably isn't what you are seeking.
In the professional production world, they use wireless earpieces and more traditional FM transmitter "broadcasting" where any number of earpiece receivers pick up the same "program". This could be simulated with small inexpensive FM receivers and an FM transmitter. All of these pieces are widely available online.
The major problem here is that BlueTooth was never designed as a "one-to-many" ("broadcasting") commmunication scheme. And there is no convenient way of sending audio to multiple BlueTooth channels (or out to multiple USB interfaces).