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A comment on Nice iPhone app lets you acoustically measure distances of up to 25 meters .

Re:Nice iPhone app lets you acoustically measure distances o... by z01d on Saturday November 12, 2011 @02:05PM (#3228558)
What's the difference to sonar ruler? http://itunes.apple.com/de/app/sonar-ruler/id324621243?mt=8

All codes are taken :-(

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Re:Nice iPhone app lets you acoustically measure distances o... by greenale on Saturday November 12, 2011 @02:21PM (#3228617)
AFAIK Sonar Ruler works by reflecting the sound off a wall e.g.

My app supports a dual-device mode where you can measure the distance between two iOS devices, and it works reliably up to 25 meters.

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