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I had the nutty idea of using Bluetooth as a wireless way to put a
pair of extension speakers (PreSonus Eris 3.5BT) in my kitchen, fed
from the audio going to the living room speakers. This isn't for
mastering or any sort of critical listening, just to have some music
playing, or occasionally a radio news program, while I'm making
dinner or washing dishes. And I needed an excuse to get a pair of
small speakers anyway. <br>
<br>
Since the living room system is all old school, there's nothing
Bluetooth there, so I went on line looking for a Bluetooth
transmitter, and was surprised to find that they weren't common as
dirt these days - I guess that's because everything that the
industry thinks needs it (whether it does or not) has it. I was
hoping for something kind of "pro" like the Radial Bluetooth DI, but
that's a receiver and not a transmitter, designed to play your phone
into your PA system and such. Web search yielded brand names I'd
never heard of, with prices ranging from aroung $12 to $60. I
settled on one for $30 that Monoprice sells (I've been happy with
their stuff in the past) and so that's what I'm working with. <br>
<br>
I was pleasantly surprised that, with only a little fooling around,
after connecting audio to the transmitter, it paired it up with the
speakers. I was somewhat concerned because neither the speaker nor
the transmitter had a display so I wouldn't know what it was doing,
or trying to do, but by golly I got music coming out of the kitchen
speakers. I'm aware that there's a Master/Slave relationship between
two units trying to connect, and that there's only one of each.
Since the speakers don't send out any Bluetooth data, that makes it
a slave, and switching the transmitter/receiver to the Transmitter
mode makes it a master. So far, so good. <br>
<br>
I'm aware that Bluetooth communication has some associated latency
but I didn't expect it to be as much as it is with this setup. When
standing where I could hear both sets of speakers, there was a
substantial delay. This morning I measured it a couple of times
pairing, un-pairing, pairing again and it's not consistent, but
delay was as great as 1.1 seconds. Distance is about 25 feet, though
that doesn't seem to matter other than whether it pairs or not. I
tried it with a set of Audio Technica Bluetooth headphones and,
while I didn't make a measurement, the delay sounded about the same
as with the speakers. So this is a bit of a confirmation that if
there's a bad performer here, it's the Monoprice transmitter and not
the PreSonus speakers. <br>
<br>
If this is typical of BT latency, then so be it. If it should be a
lot less, like in the 100 ms range or so, then maybe this Monoprice
transmitter isn't all it should be, or it's broken. <br>
<br>
Any experience that might suggest where to go from here other than
return the transmitter and scrap the idea?
<pre class="moz-signature" cols="72">--
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