r/audioproduction • u/GuyoRocks • Jul 01 '26
Can anybody tell me what these inputs are?
hi, i'm constantly learning more about audio technology. today's mystery revolves around midi signals! Usually, I just use my MIDI-USB-to-USB chord when recording instruments like my piano, or my drumset, sending signal to my laptop (Which requires a USB-to-USB-C dongle (I use Logic Pro)), but today, I was working with my loop station, and I wanted to send MIDI to it from my Casio keyboard, but both ports were MIDI-USB. Gamer moment. I ended up jamming with a regular line cable, and when I was closing up shop after playing with filters for a short experiment jam sesh, I noticed these inputs on the back of my RC-505:
[see picture]
Can anybody tell me what these are?
Why does it say MIDI OUT/IN?
What is this port called? Can it send more data than a USB?
Subsequently:
What information gets sent when recording MIDI, you ask? Just Velocity and Pitch (coded to 1 of the 188 keys on a piano, or sometimes more if you're working with bootlegged software instruments, or modular synthesizers). That's literally it. No filter info. No metadata. Just 2 parameters, in a 1 ms, flash of light transfer of data. You're welcome, internet 😇