ICST B-Format Archive
A curated collection of Ambisonics B-Format reference files for testing decoders, binaural renderers, and spatial audio pipelines. All files use the ambiX convention: ACN channel ordering, SN3D normalisation.
If you need the format background first, read Ambisonics Formats Explained for A-Format vs B-Format, FuMa vs ambiX, FOA/HOA, ACN/SN3D, and channel counts.
Audio Files
| Composer | Title | Duration | Format | Order | Normalisation | Channels | SR | Bits | Listen | Download |
|---|---|---|---|---|---|---|---|---|---|---|
| AudioBrewers | AmbiTest_ambix_5th-order.wav | 4′ | WAV | 5th order | ACN/SN3D | 36 | 48000 | 24 | Binaural ↗ | — |
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Format Reference
All files in this archive follow the ambiX standard:
- Channel ordering: ACN (Ambisonic Channel Number) — channels sorted by degree and order index
- Normalisation: SN3D (Schmidt Semi-Normalisation)
- Encoding: B-Format, not speaker-decoded audio
To use these files: import into REAPER, set the track to the correct channel count, and route through an ICST AmbiDecoder configured for the matching order. See the Step-by-Step Setup for a walkthrough.
Related reference: Ambisonics Formats Explained.