diff --git a/TODO b/TODO
index b72b7bb..4d1e55c 100644
--- a/TODO
+++ b/TODO
@@ -35,6 +35,7 @@ code:
 * cite papers, thank authors
 * process1 and multi-channel
 * add initial state (x0) to reset state of lp1, ap1, mm1, hs1, ls1, others? all?
+* multichannel process (multiple buffers, non interleaved)
 
 build system:
 * make makefiles handle paths with spaces etc