Bruce Wahler
开云体育MIDI Solutions makes an adapter box called um, the Breath Controller (!) that will accept a BC1-BC3 adapter and produce CC2 -- or any other CC, if the user prefers.It gets power from the MIDI cable, which is nice.? Unfortunately, it's an older device, and only works reliably with '5V MIDI,' not the 3V ports that most modern music gear have.? MIDI Solutions re-designed some of their most popular boxes to accept 3V, but the Breath Controller never made the cut. What's 5V MIDI?? Kind of a long story, but the original MIDI standard (1.0) showed a reference circuit that used TTL logic and was powered by 5V.? Manufacturers used the exact circuit, or a very close copy, all through the '80s and early '90s.? It was possible to siphon off a tiny bit of 5V from the circuit to power circuitry.? Later, as electronics moved to lower voltages, manufacturers started to use 3.3V and 3V MIDI designs.? Technically, MIDI doesn't need voltage, just enough current to drive an optocoupler, so these circuits work for MIDI transmission, but can't provide power for boxes that were designed for 5V.? (Sometimes they kind of work, which is it's own set of problems!)
Regards,
-BW Bruce Wahler Halfmoon-Switch.com? bw@... 978.597.7008 ? On 3/16/2023 8:44 AM, Lee Borrell via
groups.io wrote:
The dx controllers don't produce cc2 directly. They produce a varying voltage, and the dx makes the cc2 from it. I have two of them.? |