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pulse
Keauhou, HI, USA (infrasound station I59H)
→ Stream is down (Communication fault F0)
Archived programs are available for the following years: 2022 | 2021 | 2020 | 2019

This near-real-time audio stream originates from an infrasound sensor at Keauhou, HI, USA (IM station I59H). The low-frequency sounds of the atmosphere have been sped up by a factor of 200× to make them audible. As a result, frequencies have been transposed upward about 8 octaves. Each successive audio program (separated by a brief pause) compresses the last 12 hours into about 4 minutes (exactly 03:36) of listening time.

Spectrogram loading...

Annotated events during this period:

Technical details:

Status :   (Communication fault F0)
Manual flags : (none)
Station : I59H (net: IM) at Keauhou, HI, USA
Sensor : Chaparral 50A, 0.2-50 Hz, 0.4 V/Pal
Recorder : Unknown @ 20 Hz
Pod : ms-nut@x.x.73.182 | macOS 10.14.5 | psm v. 160
Last heard from pod : Thu Jan 19 00:01:06 UTC 2023 (about 2 years ago)
*** Pod checkin is overdue. Data are out-of-date.
Speedup : ×200
Loop duration (real) : 12 hours
Loop duration (audio) : 03:35 (stereo)
Data channels : miniseed (IM.I59H1..BDF IM.I59H3..BDF)
Spectrogram type : raw data
Gain correction : 0 dB
SoX post-processing : highpass -2 30 highpass -2 30
compand 0.001,0.01 6:-80,-50,-40,-10,0,-3
Archives : 2022 | 2021 | 2020 | 2019
Audio Stream : – (–@–)
Latest factoids : i59h.3.factoids.txt