Here's how True Note works:
If your record player is playing at the correct speed, you should be able to make out the individual lines on the strobe disc - and they should appear to remain in the same position (not drifting in one direction).
Many record players have an adjustable speed and can be calibrated with the help of True Note.
Perhaps you're shopping for a used record player? The True Note strobe disc is small enough that you can fold it in half to keep in your wallet or iPhone case - ready to use when you're at a thrift store or garage sale and want to make sure the turntable you're considering buying works properly.
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Crush Apps is an iOS software development company run by Jim Rhoades. I create outstanding applications that are fun and easy to use.
Read the blog to find out more about what I'm up to.