Deposit export — publishing without publishing audio
Raw recordings from private spaces often cannot be shared; their acoustic
envelope can. ambiscape deposit writes per-take TSVs of 1 Hz features:
Time level_dbfs centroid_hz low_frac high_frac
0 -39.8 881 0.786 0.189
1 -44.9 135 0.966 0.007
A 1 Hz loudness/spectral envelope is far below speech timescales and carries no intelligible content, so these files are safe for open deposits (Zenodo and similar) where the WAVs are withheld.
The schema is that of the StillStanding365 deposit (365 daily
standstill sessions, fourMs/RITMO), making corpora that use it directly
poolable. Method deltas against that deposit's original extractor are
documented in the deposit module (W-channel at native rate vs an 8 kHz
four-channel downmix; power vs magnitude band fractions): trends and
dynamics are directly comparable, absolute fraction values differ slightly
by construction.
Directional data and channel conventions
When depositing directional products, record which B-format convention the source files used (see Sessions & conventions). A convention mismatch produces azimuth distributions collapsed onto one axis — an artifact that survives into downstream correlations and is invisible unless you know to look for it.
What still requires raw audio: fast-level descriptors (Leq/LAeq), events at the 0.25 s criterion, diffuseness, elevation, spectra beyond the centroid, psychoacoustic indicators. Plan deposits accordingly: features for everyone, raw audio under controlled access where the ethics allow.