True Note vs Camera RPM Meter

Use True Note to test a record player to see if it's playing at the correct speed. Here's how: 1. Download the True Note app and open it 2. Print and cut out the included turntable strobe disc 3. Place the strobe disc on your record player and start it at the 33 1/3 RPM speed 4. Tap "START" in the True Note app and shine the flashing LED light from your iOS device onto the strobe disc 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.

How it works: With Camera: First, mark the edge of the machine whose rotational speed you want to find. Please make sure that the machine is properly visible in the camera preview. Now, go to the app, open camera RPM and adjust the RPM using the plus, minus buttons or seek bar on the screen. Now adjust the RPM unless the rotating machine becomes stationary in the camera preview. Read the value from the input field; this is the RPM of your rotating machine. With Strobe Light First, mark the edge of the machine whose rotational speed you want to find. Ensure that the machine is placed in suitable darkness. Now, go to the app, turn it on and set the approximate value of RPM using the Plus, minus button or seek bar in the strobe light module of the app. Focus your flashlight on the rotating machine, then adjust the RPM using the bar up or down until the mark on the machine appears stationary. Read the value from the input field; this is the RPM of your rotating machine. Features of the RPM Meter - Strobe Lights: • Simple and smooth interface • Check RPM using mobile camera • Check RPM using Strobe light • Easy-to-use app with a user-friendly design • Compact app size • No internet connectivity needed • On/off button functions like a torch • RPM Meter – Strobe Light can be used as a torchlight • Strobe light mode works like a stroboscope. • The strobe light speed can be set in different ways, such as using seek bar or plus/minus buttons in the app.