22 x 11 is a bit unfortunate, as length is exactly twice the width. I guess around 8ft high and 22 is not much away from 8x3. There's a calculator ++ here ++ that might help thoughts. Ideally, music rooms/studios have walls not at right angles, but the real world doesn't usually agree.

If it isn't too disruptive, curtains hung from the ceiling a few feet from one end should help. AudioTrack's panels suggestion could also be arranged to reflect sound rather more randomly. You could experiment with curtains hung over a rail between stepladders or chairbacks.


Jazz relative beginner, starting at a much older age than was helpful.
AVL:MXE Linux; Windows 11
BIAB2025 Audiophile, a bunch of other software.
Kawai MP6, Ui24R, Focusrite Saffire Pro40 and Scarletts
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