Add 1209/B17E: Aftertone Brume

Author: brannn

1209/B17E/index.md

@@ -0,0 +1,12 @@
+---
+layout: pid
+title: Aftertone Brume
+owner: aftertonesignal
+license: MIT OR Apache-2.0
+site: https://aftertone.co/brume/
+source: https://github.com/aftertonesignal/brume
+---
+
+Brume is a 4-part multi-timbral standalone synthesizer (Complex, Harmonic, Timbral, Granular oscillator engines) built on a Raspberry Pi Compute Module 5 platform with a touchscreen UI. Its USB-C bridge — branded "Meridian" — presents the device to a host as a class-compliant USB Audio 2.0 (8-channel per-part stems) + USB MIDI gadget over a single cable.
+
+This PID is also matched by the optional Aftertone Meridian macOS DriverKit extension, which presents Brume as a single unified Core Audio device with per-part channel labels (Complex L/R, Harmonic L/R, Timbral L/R, Granular L/R) instead of the UAC2 spatial-position names (FL, FR, FC, LFE, BL, BR, FLC, FRC) that Apple's class-compliant driver auto-synthesizes.