JAR_M3_SetA — REAPER session for "The B-Format as Score: Composition, Interpretation, and Spatial Form in Ambisonics"

This REAPER session is a companion artefact for The B-Format as Score:
Composition, Interpretation, and Spatial Form in Ambisonics (Johannes
Schütt, 2026), submitted to the Journal of Artistic Research (JAR) via
the Research Catalogue platform.

What this session demonstrates:

JAR_M3_SetA reproduces the Set A experiment discussed in §4.6 of
the paper. Six decodings of the same 52-second B-format passage
("Rethinking Thought", HOA-7, 64 channels, 48 kHz / 24 bit ambiX) are
rendered side by side as a reduction gradient:

• A1 — full binaural reference (IEM BinauralDecoder, KU100 HRTF)
• A2 — 17-channel Geithain re-encode → SPS → binaural
• A3 — 8-channel octagon ring → GRM Tools → stereo
• A4 — ITU 5.1 → binaural
• A5 — stereo ±30° (two speakers only)
• A6 — omnidirectional W-channel alone

All six are normalised to −23 LUFS (EBU R128). The audible difference
between A1 and A6 is the spatial notation the B-format encodes — the
empirical core of the paper's Thesis 2 (decoding as aesthetic
interpretation, not neutral transmission).

Contents:

• JAR_M3_SetA.rpp — REAPER project
• Media/ — source audio (64-channel HOA master, A00 Rethinking trought B-Format 64ch.wav)
• Renders/ — six stereo WAV renders referenced in the paper (A1–A6)
• Data/ — render manifest, post-render analysis script, BWF / meta-JSON per render, B-format directional-energy analysis
• docs/ — listening guide (DE), comparative analysis, B-format analysis report
• README.md — reproduction instructions, known-issue notes, integrity hashes

Requires: The JAR Reaper Ambisonics Bundle
(doi:10.5281/zenodo.19633159)
for the REAPER environment, plug-ins, and render templates. Install
the bundle first, then open this session's RPP inside it.

Target platform: Apple Silicon macOS 13+ (Ventura, Sonoma, Sequoia).
Tested on REAPER v7.69 / IEM v1.15.0 / SPARTA v1.8.2 under the v1.0.0
Bundle.

License: CC BY 4.0 for session RPP, documentation, data, source
audio (Johannes Schütt's own work), and renders.

Integrity: See the ZIP's README.md §5 for SHA-256 and MD5 hashes.