I’ve been looking for a set of Bluetooth speakers or boombox I can control from a laptop, or desktop. Most Bluetooth speakers support Advanced Audio Distribution Profile (A2DP) which allows a computer or mp3 player to stream music to a speaker system. But there’s a problem, there’s no volume control built into the system. The speakers have to control the volume of the music. Bluetooth does supports playback control through a fairly scarce new profile, Audio/Video Remote Control Profile (AVRCP) . The problem is it’s all screwed up, they implemented it backwards. In this scenario you would have a Bluetooth remote control for, say your TV, which would control the volume the TV plays back at. With Bluetooth, volume control is always maintained by the source of the sound.
So say for example you want a Bluetooth speaker in your bedroom, up on a dresser or someplace like that, and you want to stream music and control the volume from your tablet or laptop while you’re reading in bed. You can’t do it. You can stream to the speakers, but you’d have to get up out of bed to turn down the volume, or even switch tracks.
Bluetooth sucks. It never works right, and it’s backwards. It sucks because the data it transfers over its connection is pre-defined. It has always sucked, and it always will suck.
It always amazes me when I go out looking for a tech you’d just expect to be out there and available, because, like, you have real need for it and it makes sense, and then you find out nobody ever thought of it, so it doesn’t exist. Bah.
(Here’s the speaker system I found I thought would be perfect, until I read the manual and figured out how Bluetooth works.)