Reference collection / Sound & landscape
Explore the acoustic reference collection. Comparative Earth recordings help researchers distinguish airflow, material contact and recording effects when interpreting unfamiliar sources.
This collection preserves the Earth reference sources used by the acoustic team. Source identity and processing history accompany each entry. Load a recording, then press play. Each file loads in full for reliable seeking.
AS / 01 · Isolated texture
A wind texture from Gem Lake, with the original composite’s quiet margins retained. The listening edition uses a fixed-head stereo presentation.
Jacob Job / National Park Service, Rocky Mountain National Park · edited terrestrial reference
AS / 02 · Isolated texture
A brief contact texture drawn from a Glacier Bay ice-on-beach recording. It is a material analogue, not evidence of a creature, a particular rock or a calibrated impact.
H. Lentfer / National Park Service, Glacier Bay National Park & Preserve · edited terrestrial reference
AS / 03 · Listening study / Revision 3
The two reference textures are placed within long quiet intervals. The selected intervals compare the two source textures with quiet between them. No continuous ambient bed, animal-call layer or music is added.
Actual PCM analysis, following playback time. Digital level is not sound pressure at a source or a measured bearing.
Analysis loads when requested. No direction estimate is displayed.
NPS source recordings · head-fixed spatial rendering using MIT KEMAR responses by Bill Gardner and Keith Martin
Landscape reference
A reconstruction of the rocky night-side terrain under near-field illumination. Passive and active observations are retained as separate record types.