{"id":439,"date":"2012-01-11T07:20:00","date_gmt":"2012-01-11T07:20:00","guid":{"rendered":"http:\/\/dbbd.sg\/blog\/uncategorized\/iseismograph-on-the-mrt\/"},"modified":"2021-05-08T08:20:55","modified_gmt":"2021-05-08T08:20:55","slug":"iseismograph-on-the-mrt","status":"publish","type":"post","link":"https:\/\/dbbd.sg\/blog\/2012\/01\/iseismograph-on-the-mrt\/","title":{"rendered":"iSeismograph on the MRT"},"content":{"rendered":"

The circle line played me out once again. Lured by the sign that said “to Dhoby Ghaut”, I got on the circle line, only to realise that part of the line was not running. The only way from Labrador Park to Dhoby Ghaut was a preposterous 50 minute ride via Bishan. So I had to take a series of connections between the Circle, North-East, and North-South lines instead. To make this less boring, I started playing with a seismograph app that I had gotten some time ago:<\/p>\n

\"\"<\/center>\"\"<\/p>\n

I’ve spent a long time listening to train sounds on rjdj and with Dimensions, so much that the sound of trains is starting to change in meaning for me. I was thinking that perhaps each train line had its own sound or vibration signature, and maybe I could graph or map it with my iphone’s accelerometer….<\/p>\n

iSeismograph Features:
\n– Samples Accelation \/ G-Force with up to 180 samples \/ s
\n– Plots the accelation data for all three axis
\n– Exports the samples data as ASCII-File
\n– Pause and resume sampling
\n– Automatically save sampling session
\n– Select and resume older sampling sessions
\n– Adjust sampling rate in between 5 – 180 samples \/ s
\n– Tare function<\/p>\n

The application iSeismograph is able to export the data via email, where they will also send you this message: “The data consists of the date code and the corresponding g-values for the x, y and z axis. The column is seperated using a tab. Please pay attention that iSeismograph uses a dot as decimal seperator.”<\/p>\n

The resultant exported chart looks like this, and can be easily imported into Excel.<\/p>\n

Date Code G-Force X [g] G-Force Y [g] G-Force Z [g]\r\n2012-01-11 13:07:28.154 -0.1322174 0.01535034 -1.061234\r\n2012-01-11 13:07:28.171 -0.134201 0.0173645 -1.061249\r\n2012-01-11 13:07:28.190 -0.1352234 0.01838684 -1.056427\r\n2012-01-11 13:07:28.209 -0.1342316 0.01443481 -1.054459\r\n2012-01-11 13:07:28.227 -0.1351929 0.01445007 -1.059326\r\n2012-01-11 13:07:28.246 -0.134201 0.01637268 -1.059311\r\n2012-01-11 13:07:28.260 -0.1352081 0.01739502 -1.060303\r\n2012-01-11 13:07:28.284 -0.1322327 0.0202179 -1.063171\r\n2012-01-11 13:07:28.295 -0.1312561 0.01629639 -1.057343\r\n2012-01-11 13:07:28.314 -0.1282959 0.01522827 -1.060226\r\n2012-01-11 13:07:28.332 -0.1302643 0.01429749 -1.05928\r\n2012-01-11 13:07:28.349 -0.1361694 0.01548767 -1.05545\r\n2012-01-11 13:07:28.372 -0.1371765 0.01940918 -1.059326\r\n2012-01-11 13:07:28.383 -0.1361847 0.02035522 -1.059311\r\n.\r\n.\r\n.<\/pre>\n
\"Picture<\/center>NOW WHAT…?<\/p>\n
Maybe a reworking of my old “NEXT STOP RAFFLES PLACE” piece?<\/p>\n
 <\/p>\n
<\/a><\/div>\n
Score For Next Stop Raffles Place Interchange<\/i> (2008)<\/p>\n","protected":false},"excerpt":{"rendered":"
The circle line played me out once again. Lured by the sign that said “to Dhoby Ghaut”, I got on the circle line, only to realise that part of the line was not running. The only way from Labrador Park to Dhoby Ghaut was a preposterous 50 minute ride via Bishan. So I had to […]<\/p>\n","protected":false},"author":1,"featured_media":1005,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1027],"tags":[775,983,984],"jetpack_featured_media_url":"https:\/\/dbbd.sg\/blog\/wp-content\/uploads\/2021\/05\/6677668501_6253fb04d5_o.jpg","_links":{"self":[{"href":"https:\/\/dbbd.sg\/blog\/wp-json\/wp\/v2\/posts\/439"}],"collection":[{"href":"https:\/\/dbbd.sg\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dbbd.sg\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dbbd.sg\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dbbd.sg\/blog\/wp-json\/wp\/v2\/comments?post=439"}],"version-history":[{"count":1,"href":"https:\/\/dbbd.sg\/blog\/wp-json\/wp\/v2\/posts\/439\/revisions"}],"predecessor-version":[{"id":1008,"href":"https:\/\/dbbd.sg\/blog\/wp-json\/wp\/v2\/posts\/439\/revisions\/1008"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dbbd.sg\/blog\/wp-json\/wp\/v2\/media\/1005"}],"wp:attachment":[{"href":"https:\/\/dbbd.sg\/blog\/wp-json\/wp\/v2\/media?parent=439"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dbbd.sg\/blog\/wp-json\/wp\/v2\/categories?post=439"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dbbd.sg\/blog\/wp-json\/wp\/v2\/tags?post=439"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}