Clock drift test app
This project is now closed with a project budget of $30 - $5000 USD.Get free quotes for a project like this
Project Budget$30 - $5000 USD
This is the first of three proof of concept programs, so not intended for public release.
I need to determine very, very accurately how quickly the internal clocks in two devices drift apart. The two systems are a Mac OS X desktop, and an iOS iPhone.
There are various ways that can be done, but I'm open to all proposals. The tricky part is establishing known precise synchronization to begin with.
This could possibly be done by eye, perhaps by displaying a screen that inverts black to white each second with the means to adjust one to match the other.
Or by both systems emitting a brief sound every second, that would occur simultaneously (sound as one) if both devices were in synch, and two once they drift.
NB: I worry that simple playback of media files might drift away from even the clock (dropped frames, etc.), so a programmatic solution that remains cued to the clock is preferable.
A more sophisticated solution would involve detecting a common signal, perhaps video, perhaps audio that would function as a clapper-board. Please see the attached media file that could be used for this.
Looking to make some money?
- Set your budget and the timeframe
- Outline your proposal
- Get paid for your work
Hire Freelancers who also bid on this project
Looking for work?
Work on projects like this and make money from home!Sign Up Now
- The New York Times
- Wall Street Journal
- Times Online