This is correct, I see visuals when I hear sounds. The textures and shapes correspond to the type of sound. For instance, a clean guitar has a different texture than a distorted guitar. Same for people's voices.
Came here to say that I experience similar, and my career is centred around audio. When people talk about "brighter" and "darker" sounds, that's very much a tangible concept to me and not some abstract thing. Different sounds have different colours, and my DAW templates are always based around this. Any gear that uses LEDs that can't be reassigned is a nightmare for me as it's visually overwhelming.
Funnily enough, I do a fair bit of scoring picture and games, and I find that the scene informs what kind of music I'll make. It's not painting-by-numbers though, but it's like sharing synaesthesia in a tangible form.
