« R199DB »
Cambridge, MA, USA (infrasound)

This near-real-time audio stream originates from a microbarograph at Cambridge, MA, USA (Raspberry Shake station R199D). The low-frequency sounds of the atmosphere have been speeded up by a factor of 50× to make them audible. As a result, frequencies have been transposed upward about 6 octaves. Each successive audio program (separated by a brief pause) compresses the last 3 hours into about 4 minutes (exactly 03:36) of listening time.

Spectrogram loading...

Annotated events during this period:

Technical details:

Station : R199D (net: Raspberry Shake) at Cambridge, MA, USA
Sensor : MEMS differential pressure transducer
Recorder : Raspberry Shake @ 100 Hz
Pod : inanna@x.x.10.56 | macOS 10.12.6 | esound v. 157
Last heard from pod : Sun Sep 15 14:30:38 UTC 2019 (about 2 hours ago)
*** Pod checkin is overdue. Data may be out-of-date.
Speedup : ×50
Loop duration (real) : 3 hours
Loop duration (audio) : 03:35 (mono)
Data channels : miniseed (AM.R199D.00.HDF)
Spectrogram type : raw data
Gain correction : 20 dB
SoX post-processing : highpass -2 1
Archives : 2019
SHOUTcast : http://174.138.63.51:8058/;stream (rscam2@8058)
Latest factoids : r199db.7.factoids.txt

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