This near-real-time audio stream originates from a seismometer at Ulaanbaatar, Mongolia (IRIS/USGS station ULN). The low-frequency sounds of the solid Earth have been speeded up by a factor of 900× to make them audible. As a result, frequencies have been transposed upward about 10 octaves. Each successive audio program (separated by a brief pause) compresses the last 168 hours into about 11 minutes (exactly 11:12) of listening time.
Annotated events during this period:
|Station :||ULN (net: IRIS/USGS) at Ulaanbaatar, Mongolia|
|Recorder :||Quanterra QX80 @ 20 Hz|
|Pod :||firstname.lastname@example.org | macOS 10.14.5 | esound v. 157|
|Last heard from pod :||Sun Sep 15 14:21:55 UTC 2019 (about 2 hours ago)
*** Pod checkin is overdue. Data may be out-of-date.
|Loop duration (real) :||168 hours|
|Loop duration (audio) :||11:12 (stereo)|
|Data channels :||miniseed (IU.ULN.00.BH1 IU.ULN.00.BH2)|
|Spectrogram type :||post-processed data|
|Gain correction :||25 dB|
|SoX post-processing :||highpass -2 90 highpass -2 90
compand 0.001,0.01 6:-80,-50,-40,-10,0,-3
|SHOUTcast :||http://18.104.22.168:8040/;stream (es21@8040)|
|Latest factoids :||uln.4.factoids.txt|